---
_id: '43245'
abstract:
- lang: eng
text: High-contrast slab waveguide Bragg gratings with 1D periodicity are investigated.
For specific oblique excitation by semi-guided waves at sufficiently high angles
of incidence, the idealized structures do not exhibit any radiative losses, such
that reflectance and transmittance for the single port mode add strictly up to
one. We consider a series of symmetric, fully and partly etched finite gratings,
for parameters found in integrated silicon photonics. These can act as spectral
filters with a reasonably flattop response. Apodization can lead to more box shaped
reflectance and transmittance spectra. Together with a narrowband Fabry–Perot
filter, these configurations are characterized by reflection bands, or transmittance
peaks, with widths that span three orders of magnitude.
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Henna
full_name: Farheen, Henna
last_name: Farheen
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Hammer M, Farheen H, Förstner J. How to suppress radiative losses in high-contrast
integrated Bragg gratings. Journal of the Optical Society of America B.
2023;40(4):862. doi:10.1364/josab.485725
apa: Hammer, M., Farheen, H., & Förstner, J. (2023). How to suppress radiative
losses in high-contrast integrated Bragg gratings. Journal of the Optical Society
of America B, 40(4), 862. https://doi.org/10.1364/josab.485725
bibtex: '@article{Hammer_Farheen_Förstner_2023, title={How to suppress radiative
losses in high-contrast integrated Bragg gratings}, volume={40}, DOI={10.1364/josab.485725},
number={4}, journal={Journal of the Optical Society of America B}, publisher={Optica
Publishing Group}, author={Hammer, Manfred and Farheen, Henna and Förstner, Jens},
year={2023}, pages={862} }'
chicago: 'Hammer, Manfred, Henna Farheen, and Jens Förstner. “How to Suppress Radiative
Losses in High-Contrast Integrated Bragg Gratings.” Journal of the Optical
Society of America B 40, no. 4 (2023): 862. https://doi.org/10.1364/josab.485725.'
ieee: 'M. Hammer, H. Farheen, and J. Förstner, “How to suppress radiative losses
in high-contrast integrated Bragg gratings,” Journal of the Optical Society
of America B, vol. 40, no. 4, p. 862, 2023, doi: 10.1364/josab.485725.'
mla: Hammer, Manfred, et al. “How to Suppress Radiative Losses in High-Contrast
Integrated Bragg Gratings.” Journal of the Optical Society of America B,
vol. 40, no. 4, Optica Publishing Group, 2023, p. 862, doi:10.1364/josab.485725.
short: M. Hammer, H. Farheen, J. Förstner, Journal of the Optical Society of America
B 40 (2023) 862.
date_created: 2023-03-31T13:04:43Z
date_updated: 2023-04-20T10:03:40Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1364/josab.485725
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2023-03-31T13:14:59Z
date_updated: 2023-03-31T13:14:59Z
file_id: '43247'
file_name: ogr-afterreview.pdf
file_size: 1982311
relation: main_file
file_date_updated: 2023-03-31T13:14:59Z
has_accepted_license: '1'
intvolume: ' 40'
issue: '4'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: '862'
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '167'
name: 'TRR 142 - B06: TRR 142 - Subproject B06'
publication: Journal of the Optical Society of America B
publication_identifier:
issn:
- 0740-3224
- 1520-8540
publication_status: published
publisher: Optica Publishing Group
status: public
title: How to suppress radiative losses in high-contrast integrated Bragg gratings
type: journal_article
user_id: '158'
volume: 40
year: '2023'
...
---
_id: '30387'
abstract:
- lang: eng
text: Resonant evanescent coupling can be utilized to selectively excite orbital
angular momentum (OAM) modes of high angular order supported by a thin circular
dielectric rod. Our 2.5-D hybrid-analytical coupled mode model combines the vectorial
fields associated with the fundamental TE- and TM-modes of a standard silicon
photonics slab waveguide, propagating at oblique angles with respect to the rod
axis, and the hybrid modes supported by the rod. One observes an efficient resonant
interaction in cases where the common axial wavenumber of the waves in the slab
matches the propagation constant of one or more modes of the rod. For certain
modes of high angular order, the incident wave is able to transfer its directionality
to the field in the fiber, exciting effectively only one of a pair of degenerate
OAM modes
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Hammer M, Ebers L, Förstner J. Resonant evanescent excitation of OAM modes
in a high-contrast circular step-index fiber. In: Andrews DL, Galvez EJ, Rubinsztein-Dunlop
H, eds. Complex Light and Optical Forces XVI. SPIE; 2022:120170F. doi:10.1117/12.2612179'
apa: Hammer, M., Ebers, L., & Förstner, J. (2022). Resonant evanescent excitation
of OAM modes in a high-contrast circular step-index fiber. In D. L. Andrews, E.
J. Galvez, & H. Rubinsztein-Dunlop (Eds.), Complex Light and Optical Forces
XVI (p. 120170F). SPIE. https://doi.org/10.1117/12.2612179
bibtex: '@inproceedings{Hammer_Ebers_Förstner_2022, title={Resonant evanescent excitation
of OAM modes in a high-contrast circular step-index fiber}, DOI={10.1117/12.2612179},
booktitle={Complex Light and Optical Forces XVI}, publisher={SPIE}, author={Hammer,
Manfred and Ebers, Lena and Förstner, Jens}, editor={Andrews, David L. and Galvez,
Enrique J. and Rubinsztein-Dunlop, Halina}, year={2022}, pages={120170F} }'
chicago: Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation
of OAM Modes in a High-Contrast Circular Step-Index Fiber.” In Complex Light
and Optical Forces XVI, edited by David L. Andrews, Enrique J. Galvez, and
Halina Rubinsztein-Dunlop, 120170F. SPIE, 2022. https://doi.org/10.1117/12.2612179.
ieee: 'M. Hammer, L. Ebers, and J. Förstner, “Resonant evanescent excitation of
OAM modes in a high-contrast circular step-index fiber,” in Complex Light and
Optical Forces XVI, 2022, p. 120170F, doi: 10.1117/12.2612179.'
mla: Hammer, Manfred, et al. “Resonant Evanescent Excitation of OAM Modes in a High-Contrast
Circular Step-Index Fiber.” Complex Light and Optical Forces XVI, edited
by David L. Andrews et al., SPIE, 2022, p. 120170F, doi:10.1117/12.2612179.
short: 'M. Hammer, L. Ebers, J. Förstner, in: D.L. Andrews, E.J. Galvez, H. Rubinsztein-Dunlop
(Eds.), Complex Light and Optical Forces XVI, SPIE, 2022, p. 120170F.'
date_created: 2022-03-21T10:12:58Z
date_updated: 2022-03-22T18:04:20Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1117/12.2612179
editor:
- first_name: David L.
full_name: Andrews, David L.
last_name: Andrews
- first_name: Enrique J.
full_name: Galvez, Enrique J.
last_name: Galvez
- first_name: Halina
full_name: Rubinsztein-Dunlop, Halina
last_name: Rubinsztein-Dunlop
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2022-03-22T18:03:50Z
date_updated: 2022-03-22T18:03:50Z
file_id: '30444'
file_name: 2022-03 Hammer - SPIE Photonics West 2022 - Resonant evanescent excitation
of OAM modes in a high-contrast circular (official version).pdf
file_size: 2015899
relation: main_file
file_date_updated: 2022-03-22T18:03:50Z
has_accepted_license: '1'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: 120170F
project:
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '75'
name: 'TRR 142 - C5: TRR 142 - Subproject C5'
publication: Complex Light and Optical Forces XVI
publication_status: published
publisher: SPIE
status: public
title: Resonant evanescent excitation of OAM modes in a high-contrast circular step-index
fiber
type: conference
user_id: '158'
year: '2022'
...
---
_id: '30722'
abstract:
- lang: eng
text: In dieser Arbeit wird die elektromagnetische Wellenausbreitung in integrierten
optischen Wellenleitern mit Hilfe von halb analytischen und numerischen Simulationsmethoden
untersucht. Im ersten Teil werden 2-D Si/SiO2-Wellenleiterkonfigurationen mit
hohem Brechungsindexkontrast betrachtet. Die Strukturen werden mit halb geführten
Wellen unter schrägen Ausbreitungswinkeln angeregt. Dadurch kann die Leistungsübertragung
zu bestimmten ausgehenden Moden unterdrückt werden, wodurch vollständig verlustfreie
Systeme entstehen. Zusätzlich dient die Anregung mit einem seitlich begrenzten,
einfallenden Wellenbündel aus halb geführten Wellen dazu, praktisch relevantere
3-D Konfigurationen zu realisieren. Darüber hinaus wird eine schrittweise Winkelspektrum-Methode
vorgestellt, die es ermöglicht, in Kombination mit voll vektoriellen 2-D Finite-Elemente-Lösungen
für Teilprobleme mit geringerer Komplexität, die Wellenausbreitung in planaren,
linsenförmigen Wellenleitern numerisch in drei Raumrichtungen zu berechnen. Im
zweiten Teil dieser Arbeit wird die Ausbreitung in Wellenleiterstrukturen aus
Lithiumniobat untersucht, welche für quantenoptische Effekte genutzt werden. Zur
Detektion einzelner Photonen werden supraleitende Nanodrähte auf eindiffundierten
Lithiumniobat Wellenleitern mit zusätzlicher Taperschicht aus Silizium betrachtet.
Um die Wellenausbreitung in diesen 3-D Wellenleitern zu beschreiben, wird eine
einseitig gerichtete Finite-Elemente „Modal Matching“ Methode eingeführt. Abschließend
werden Rippenwellenleiter aus Lithiumniobat analysiert, die auf Siliziumdioxid
Plattformen aufgebracht sind. Der Schwerpunkt liegt hier auf dem nichtlinearen
„Parametric Down-Conversion“ Prozess, der für die Erzeugung verschränkter Photonen
verwendet wird.
- lang: eng
text: In this work, the electromagnetic wave propagation in integrated optical waveguides
is studied by using semi-analytical and numerical simulation methods. In the first
part, 2-D high-index contrast Si/SiO2 dielectric slab waveguide configurations
are investigated. The structures are excited with semi-guided waves at oblique
angles of propagation. Due to this, power transfer to specific outgoing modes
can be suppressed, resulting in completely lossless configurations. The excitation
is further examined for incoming, laterally confined wave bundles of semi-guided
waves to realize practically more relevant 3-D configurations. Additionally, a
stepwise angular spectrum method in combination with full vectorial 2-D finite
element solutions for subproblems of lower complexity to numerically simulate
the wave propagation in full 3-D planar lens-like waveguides is presented. In
the second part, the wave propagation in lithium niobate waveguide structures
is examined, which are used for quantum optical effects. On the one hand, superconducting
nanowires on titanium in-diffused lithium niobate waveguides with an additional
tapered silicon layer are used for single photon detection. The wave propagation
in these 3-D multiscale tapers is studied by introducing a unidirectional finite
element modal matching method. On the other hand, lithium niobate rib waveguides
on silicon dioxide platforms are analyzed, focusing on the nonlinear parametric
down-conversion process used for the generation of entangled photons.
author:
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
citation:
ama: Ebers L. Semi-Guided Waves in Integrated Optical Waveguide Structures.;
2022. doi:10.17619/UNIPB/1-1288
apa: Ebers, L. (2022). Semi-guided waves in integrated optical waveguide structures.
https://doi.org/10.17619/UNIPB/1-1288
bibtex: '@book{Ebers_2022, title={Semi-guided waves in integrated optical waveguide
structures}, DOI={10.17619/UNIPB/1-1288},
author={Ebers, Lena}, year={2022} }'
chicago: Ebers, Lena. Semi-Guided Waves in Integrated Optical Waveguide Structures,
2022. https://doi.org/10.17619/UNIPB/1-1288.
ieee: L. Ebers, Semi-guided waves in integrated optical waveguide structures.
2022.
mla: Ebers, Lena. Semi-Guided Waves in Integrated Optical Waveguide Structures.
2022, doi:10.17619/UNIPB/1-1288.
short: L. Ebers, Semi-Guided Waves in Integrated Optical Waveguide Structures, 2022.
date_created: 2022-03-29T18:42:08Z
date_updated: 2022-03-29T18:44:30Z
department:
- _id: '61'
- _id: '230'
doi: 10.17619/UNIPB/1-1288
keyword:
- tet_topic_waveguide
language:
- iso: eng
status: public
supervisor:
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
title: Semi-guided waves in integrated optical waveguide structures
type: dissertation
user_id: '158'
year: '2022'
...
---
_id: '35128'
abstract:
- lang: eng
text: Here we demonstrate a new, to the best of our knowledge, type of 3-dB coupler
that has an ultra-broadband operational range from 1300 to 1600 nm with low fabrication
sensitivity. The overall device size is 800 µm including in/out S-bend waveguides.
The coupler is an asymmetric non-uniform directional coupler that consists of
two tapered waveguides. One of the coupler arms is shifted by 100 µm in the propagation
direction, which results in a more wavelength-insensitive 3-dB response compared
to a standard (not shifted) coupler. Moreover, compared to a long adiabatic coupler,
we achieved a similar wavelength response at a 16-times-smaller device length.
The couplers were fabricated using the silicon nitride platform of Lionix International.
We also experimentally demonstrated an optical switch that is made by using two
of these couplers in a Mach–Zehnder interferometer configuration. According to
experimental results, this optical switch exhibits –10 dB of extinction ratio
over the 1500–1600 nm wavelength range. Our results indicate that this new type
of coupler holds great promise for various applications, including optical imaging,
telecommunications, and reconfigurable photonic processors where compact, fabrication-tolerant,
and wavelength-insensitive couplers are essential.
author:
- first_name: Hamed
full_name: Nikbakht, Hamed
last_name: Nikbakht
- first_name: Mohammad Talebi
full_name: Khoshmehr, Mohammad Talebi
last_name: Khoshmehr
- first_name: Bob
full_name: van Someren, Bob
last_name: van Someren
- first_name: Dieter
full_name: Teichrib, Dieter
last_name: Teichrib
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: B. Imran
full_name: Akca, B. Imran
last_name: Akca
citation:
ama: Nikbakht H, Khoshmehr MT, van Someren B, et al. Asymmetric, non-uniform 3-dB
directional coupler with 300-nm bandwidth and a small footprint. Optics Letters.
2022;48(2):207. doi:10.1364/ol.476537
apa: Nikbakht, H., Khoshmehr, M. T., van Someren, B., Teichrib, D., Hammer, M.,
Förstner, J., & Akca, B. I. (2022). Asymmetric, non-uniform 3-dB directional
coupler with 300-nm bandwidth and a small footprint. Optics Letters, 48(2),
207. https://doi.org/10.1364/ol.476537
bibtex: '@article{Nikbakht_Khoshmehr_van Someren_Teichrib_Hammer_Förstner_Akca_2022,
title={Asymmetric, non-uniform 3-dB directional coupler with 300-nm bandwidth
and a small footprint}, volume={48}, DOI={10.1364/ol.476537},
number={2}, journal={Optics Letters}, publisher={Optica Publishing Group}, author={Nikbakht,
Hamed and Khoshmehr, Mohammad Talebi and van Someren, Bob and Teichrib, Dieter
and Hammer, Manfred and Förstner, Jens and Akca, B. Imran}, year={2022}, pages={207}
}'
chicago: 'Nikbakht, Hamed, Mohammad Talebi Khoshmehr, Bob van Someren, Dieter Teichrib,
Manfred Hammer, Jens Förstner, and B. Imran Akca. “Asymmetric, Non-Uniform 3-DB
Directional Coupler with 300-Nm Bandwidth and a Small Footprint.” Optics Letters
48, no. 2 (2022): 207. https://doi.org/10.1364/ol.476537.'
ieee: 'H. Nikbakht et al., “Asymmetric, non-uniform 3-dB directional coupler
with 300-nm bandwidth and a small footprint,” Optics Letters, vol. 48,
no. 2, p. 207, 2022, doi: 10.1364/ol.476537.'
mla: Nikbakht, Hamed, et al. “Asymmetric, Non-Uniform 3-DB Directional Coupler with
300-Nm Bandwidth and a Small Footprint.” Optics Letters, vol. 48, no. 2,
Optica Publishing Group, 2022, p. 207, doi:10.1364/ol.476537.
short: H. Nikbakht, M.T. Khoshmehr, B. van Someren, D. Teichrib, M. Hammer, J. Förstner,
B.I. Akca, Optics Letters 48 (2022) 207.
date_created: 2023-01-03T09:32:47Z
date_updated: 2023-01-03T10:37:34Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
doi: 10.1364/ol.476537
file:
- access_level: local
content_type: application/pdf
creator: fossie
date_created: 2023-01-03T09:36:34Z
date_updated: 2023-01-03T09:36:34Z
embargo: 2024-01-03
embargo_to: open_access
file_id: '35129'
file_name: 2023-01 Nikbakht - Optics Letter - Asymmetric, non-uniform 3-dB directional
coupler with 300-nm bandwidth and small footprint.pdf
file_size: 3731864
relation: main_file
file_date_updated: 2023-01-03T09:36:34Z
has_accepted_license: '1'
intvolume: ' 48'
issue: '2'
keyword:
- tet_topic_waveguide
language:
- iso: eng
page: '207'
publication: Optics Letters
publication_identifier:
issn:
- 0146-9592
- 1539-4794
publication_status: published
publisher: Optica Publishing Group
status: public
title: Asymmetric, non-uniform 3-dB directional coupler with 300-nm bandwidth and
a small footprint
type: journal_article
user_id: '158'
volume: 48
year: '2022'
...
---
_id: '30210'
abstract:
- lang: eng
text: Lithium niobate on insulator (LNOI) has a great potential for photonic integrated
circuits, providing substantial versatility in design of various integrated components.
To properly use these components in the implementation of different quantum protocols,
photons with different properties are required. In this paper, we theoretically
demonstrate a flexible source of correlated photons built on the LNOI waveguide
of a special geometry. This source is based on the parametric down-conversion
(PDC) process, in which the signal and idler photons are generated at the telecom
wavelength and have different spatial profiles and polarizations, but the same
group velocities. Distinguishability in polarizations and spatial profiles facilitates
the routing and manipulating individual photons, while the equality of their group
velocities leads to the absence of temporal walk-off between photons. We show
how the spectral properties of the generated photons and the number of their frequency
modes can be controlled depending on the pump characteristics and the waveguide
length. Finally, we discuss special regimes, in which narrowband light with strong
frequency correlations and polarization-entangled Bell states are generated at
the telecom wavelength.
author:
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Alessandro
full_name: Ferreri, Alessandro
id: '65609'
last_name: Ferreri
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Maximilian
full_name: Albert, Maximilian
last_name: Albert
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Polina R.
full_name: Sharapova, Polina R.
id: '60286'
last_name: Sharapova
citation:
ama: 'Ebers L, Ferreri A, Hammer M, et al. Flexible source of correlated photons
based on LNOI rib waveguides. Journal of Physics: Photonics. 2022;4:025001.
doi:10.1088/2515-7647/ac5a5b'
apa: 'Ebers, L., Ferreri, A., Hammer, M., Albert, M., Meier, C., Förstner, J., &
Sharapova, P. R. (2022). Flexible source of correlated photons based on LNOI rib
waveguides. Journal of Physics: Photonics, 4, 025001. https://doi.org/10.1088/2515-7647/ac5a5b'
bibtex: '@article{Ebers_Ferreri_Hammer_Albert_Meier_Förstner_Sharapova_2022, title={Flexible
source of correlated photons based on LNOI rib waveguides}, volume={4}, DOI={10.1088/2515-7647/ac5a5b},
journal={Journal of Physics: Photonics}, publisher={IOP Publishing}, author={Ebers,
Lena and Ferreri, Alessandro and Hammer, Manfred and Albert, Maximilian and Meier,
Cedrik and Förstner, Jens and Sharapova, Polina R.}, year={2022}, pages={025001}
}'
chicago: 'Ebers, Lena, Alessandro Ferreri, Manfred Hammer, Maximilian Albert, Cedrik
Meier, Jens Förstner, and Polina R. Sharapova. “Flexible Source of Correlated
Photons Based on LNOI Rib Waveguides.” Journal of Physics: Photonics 4
(2022): 025001. https://doi.org/10.1088/2515-7647/ac5a5b.'
ieee: 'L. Ebers et al., “Flexible source of correlated photons based on LNOI
rib waveguides,” Journal of Physics: Photonics, vol. 4, p. 025001, 2022,
doi: 10.1088/2515-7647/ac5a5b.'
mla: 'Ebers, Lena, et al. “Flexible Source of Correlated Photons Based on LNOI Rib
Waveguides.” Journal of Physics: Photonics, vol. 4, IOP Publishing, 2022,
p. 025001, doi:10.1088/2515-7647/ac5a5b.'
short: 'L. Ebers, A. Ferreri, M. Hammer, M. Albert, C. Meier, J. Förstner, P.R.
Sharapova, Journal of Physics: Photonics 4 (2022) 025001.'
date_created: 2022-03-07T09:51:50Z
date_updated: 2023-03-24T07:39:18Z
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '287'
doi: 10.1088/2515-7647/ac5a5b
intvolume: ' 4'
keyword:
- tet_topic_waveguide
language:
- iso: eng
page: '025001'
project:
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '75'
name: 'TRR 142 - C5: TRR 142 - Subproject C5'
- _id: '72'
name: 'TRR 142 - C2: TRR 142 - Subproject C2'
- _id: '53'
name: 'TRR 142: TRR 142'
publication: 'Journal of Physics: Photonics'
publication_identifier:
issn:
- 2515-7647
publication_status: published
publisher: IOP Publishing
related_material:
link:
- description: Corrigendum for table C1
relation: erratum
url: https://doi.org/10.1088/2515-7647/acc70c
status: public
title: Flexible source of correlated photons based on LNOI rib waveguides
type: journal_article
user_id: '158'
volume: 4
year: '2022'
...
---
_id: '30389'
abstract:
- lang: eng
text: Online solvers for a series of standard 1-D or 2-D problems in integrated
optics will be discussed. Implemented on the basis of HTML/JavaScript/SVG with
core routines compiled from well tested C++-sources, the quasi-analytical algorithms
require a computational load that can be handled easily even by current mobile
devices. So far the series covers the 1-D guided modes of dielectric multilayer
slab waveguides and the oblique plane wave reflection from these, the modes of
rectangular channel waveguides (in an approximation of effective indices), bend
modes of curved multilayer slabs, whispering-gallery resonances (“Quasi-Normal-Modes”)
supported by circular dielectric cavities, the hybrid modes of circular multi-step-index
optical fibers, bound and leaky modes of 1-D complex multilayers, including plasmonic
surface modes, and, with restrictions, quite general rectangular scattering problems
in 2-D.
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
citation:
ama: 'Hammer M. Small-scale online simulations in guided-wave photonics. In: García-Blanco
SM, Cheben P, eds. Integrated Optics: Devices, Materials, and Technologies
XXVI. SPIE; 2022:1200414. doi:10.1117/12.2612208'
apa: 'Hammer, M. (2022). Small-scale online simulations in guided-wave photonics.
In S. M. García-Blanco & P. Cheben (Eds.), Integrated Optics: Devices,
Materials, and Technologies XXVI (p. 1200414). SPIE. https://doi.org/10.1117/12.2612208'
bibtex: '@inproceedings{Hammer_2022, title={Small-scale online simulations in guided-wave
photonics}, DOI={10.1117/12.2612208},
booktitle={Integrated Optics: Devices, Materials, and Technologies XXVI}, publisher={SPIE},
author={Hammer, Manfred}, editor={García-Blanco, Sonia M. and Cheben, Pavel},
year={2022}, pages={1200414} }'
chicago: 'Hammer, Manfred. “Small-Scale Online Simulations in Guided-Wave Photonics.”
In Integrated Optics: Devices, Materials, and Technologies XXVI, edited
by Sonia M. García-Blanco and Pavel Cheben, 1200414. SPIE, 2022. https://doi.org/10.1117/12.2612208.'
ieee: 'M. Hammer, “Small-scale online simulations in guided-wave photonics,” in
Integrated Optics: Devices, Materials, and Technologies XXVI, 2022, p.
1200414, doi: 10.1117/12.2612208.'
mla: 'Hammer, Manfred. “Small-Scale Online Simulations in Guided-Wave Photonics.”
Integrated Optics: Devices, Materials, and Technologies XXVI, edited by
Sonia M. García-Blanco and Pavel Cheben, SPIE, 2022, p. 1200414, doi:10.1117/12.2612208.'
short: 'M. Hammer, in: S.M. García-Blanco, P. Cheben (Eds.), Integrated Optics:
Devices, Materials, and Technologies XXVI, SPIE, 2022, p. 1200414.'
date_created: 2022-03-21T10:17:30Z
date_updated: 2023-04-20T10:10:55Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1117/12.2612208
editor:
- first_name: Sonia M.
full_name: García-Blanco, Sonia M.
last_name: García-Blanco
- first_name: Pavel
full_name: Cheben, Pavel
last_name: Cheben
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2022-03-22T18:05:02Z
date_updated: 2022-03-22T18:05:02Z
file_id: '30445'
file_name: 2022-03 Hammer - SPIE Photonics West 2022 - Small-scale online simulations
in guided-wave photonics (official version).pdf
file_size: 868473
relation: main_file
file_date_updated: 2022-03-22T18:05:02Z
has_accepted_license: '1'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: '1200414'
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '75'
name: 'TRR 142 - C05: TRR 142 - Subproject C05'
publication: 'Integrated Optics: Devices, Materials, and Technologies XXVI'
publication_status: published
publisher: SPIE
status: public
title: Small-scale online simulations in guided-wave photonics
type: conference
user_id: '158'
year: '2022'
...
---
_id: '28196'
abstract:
- lang: eng
text: We show that narrow trenches in a high-contrast silicon-photonics slab can
act as lossless power dividers for semi-guided waves. Reflectance and transmittance
can be easily configured by selecting the trench width. At sufficiently high angles
of incidence, the devices are lossless, apart from material attenuation and scattering
due to surface roughness. We numerically simulate a series of devices within the
full 0-to-1-range of splitting ratios, for semi-guided plane wave incidence as
well as for excitation by focused Gaussian wave bundles. Straightforward cascading
of the trenches leads to concepts for 1×M-power dividers and a polarization beam
splitter.
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Hammer M, Ebers L, Förstner J. Configurable lossless broadband beam splitters
for semi-guided waves in integrated silicon photonics. OSA Continuum. 2021;4(12):3081.
doi:10.1364/osac.437549
apa: Hammer, M., Ebers, L., & Förstner, J. (2021). Configurable lossless broadband
beam splitters for semi-guided waves in integrated silicon photonics. OSA Continuum,
4(12), 3081. https://doi.org/10.1364/osac.437549
bibtex: '@article{Hammer_Ebers_Förstner_2021, title={Configurable lossless broadband
beam splitters for semi-guided waves in integrated silicon photonics}, volume={4},
DOI={10.1364/osac.437549}, number={12},
journal={OSA Continuum}, author={Hammer, Manfred and Ebers, Lena and Förstner,
Jens}, year={2021}, pages={3081} }'
chicago: 'Hammer, Manfred, Lena Ebers, and Jens Förstner. “Configurable Lossless
Broadband Beam Splitters for Semi-Guided Waves in Integrated Silicon Photonics.”
OSA Continuum 4, no. 12 (2021): 3081. https://doi.org/10.1364/osac.437549.'
ieee: 'M. Hammer, L. Ebers, and J. Förstner, “Configurable lossless broadband beam
splitters for semi-guided waves in integrated silicon photonics,” OSA Continuum,
vol. 4, no. 12, p. 3081, 2021, doi: 10.1364/osac.437549.'
mla: Hammer, Manfred, et al. “Configurable Lossless Broadband Beam Splitters for
Semi-Guided Waves in Integrated Silicon Photonics.” OSA Continuum, vol.
4, no. 12, 2021, p. 3081, doi:10.1364/osac.437549.
short: M. Hammer, L. Ebers, J. Förstner, OSA Continuum 4 (2021) 3081.
date_created: 2021-11-30T20:04:57Z
date_updated: 2022-11-18T09:58:03Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1364/osac.437549
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2021-11-30T20:07:53Z
date_updated: 2021-11-30T20:19:15Z
file_id: '28197'
file_name: 2021-11 Hammer - OSA Continuum - Trenches.pdf
file_size: 6618403
relation: main_file
file_date_updated: 2021-11-30T20:19:15Z
has_accepted_license: '1'
intvolume: ' 4'
issue: '12'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: '3081'
project:
- _id: '53'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
publication: OSA Continuum
publication_identifier:
issn:
- 2578-7519
publication_status: published
status: public
title: Configurable lossless broadband beam splitters for semi-guided waves in integrated
silicon photonics
type: journal_article
user_id: '477'
volume: 4
year: '2021'
...
---
_id: '21719'
abstract:
- lang: eng
text: We fabricate silicon tapers to increase the mode overlap of superconducting
detectors on Ti:LiNbO3 waveguides. Mode images show a reduction in mode size from
6 µm to 2 µm FWHM, agreeing with beam propagation simulations.
article_number: QTh7A.8
author:
- first_name: Maximilian
full_name: Protte, Maximilian
id: '46170'
last_name: Protte
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Jan Philipp
full_name: Höpker, Jan Philipp
id: '33913'
last_name: Höpker
- first_name: Maximilian
full_name: Albert, Maximilian
last_name: Albert
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: 'Protte M, Ebers L, Hammer M, et al. Towards Semiconductor-Superconductor-Crystal
Hybrid Integration for Quantum Photonics. In: OSA Quantum 2.0 Conference.
; 2020. doi:10.1364/quantum.2020.qth7a.8'
apa: Protte, M., Ebers, L., Hammer, M., Höpker, J. P., Albert, M., Quiring, V.,
Meier, C., Förstner, J., Silberhorn, C., & Bartley, T. (2020). Towards Semiconductor-Superconductor-Crystal
Hybrid Integration for Quantum Photonics. OSA Quantum 2.0 Conference, Article
QTh7A.8. https://doi.org/10.1364/quantum.2020.qth7a.8
bibtex: '@inproceedings{Protte_Ebers_Hammer_Höpker_Albert_Quiring_Meier_Förstner_Silberhorn_Bartley_2020,
title={Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum
Photonics}, DOI={10.1364/quantum.2020.qth7a.8},
number={QTh7A.8}, booktitle={OSA Quantum 2.0 Conference}, author={Protte, Maximilian
and Ebers, Lena and Hammer, Manfred and Höpker, Jan Philipp and Albert, Maximilian
and Quiring, Viktor and Meier, Cedrik and Förstner, Jens and Silberhorn, Christine
and Bartley, Tim}, year={2020} }'
chicago: Protte, Maximilian, Lena Ebers, Manfred Hammer, Jan Philipp Höpker, Maximilian
Albert, Viktor Quiring, Cedrik Meier, Jens Förstner, Christine Silberhorn, and
Tim Bartley. “Towards Semiconductor-Superconductor-Crystal Hybrid Integration
for Quantum Photonics.” In OSA Quantum 2.0 Conference, 2020. https://doi.org/10.1364/quantum.2020.qth7a.8.
ieee: 'M. Protte et al., “Towards Semiconductor-Superconductor-Crystal Hybrid
Integration for Quantum Photonics,” 2020, doi: 10.1364/quantum.2020.qth7a.8.'
mla: Protte, Maximilian, et al. “Towards Semiconductor-Superconductor-Crystal Hybrid
Integration for Quantum Photonics.” OSA Quantum 2.0 Conference, QTh7A.8,
2020, doi:10.1364/quantum.2020.qth7a.8.
short: 'M. Protte, L. Ebers, M. Hammer, J.P. Höpker, M. Albert, V. Quiring, C. Meier,
J. Förstner, C. Silberhorn, T. Bartley, in: OSA Quantum 2.0 Conference, 2020.'
date_created: 2021-04-22T15:56:45Z
date_updated: 2022-10-25T07:41:15Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '15'
doi: 10.1364/quantum.2020.qth7a.8
file:
- access_level: closed
content_type: application/pdf
creator: fossie
date_created: 2021-04-22T15:58:52Z
date_updated: 2021-04-22T15:58:52Z
file_id: '21720'
file_name: Quantum2.0-Towards SSC hybrid integration for quantum photonics[4936].pdf
file_size: 1704199
relation: main_file
success: 1
file_date_updated: 2021-04-22T15:58:52Z
has_accepted_license: '1'
keyword:
- tet_topic_waveguide
language:
- iso: eng
publication: OSA Quantum 2.0 Conference
publication_identifier:
isbn:
- '9781943580811'
publication_status: published
status: public
title: Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum
Photonics
type: conference
user_id: '49683'
year: '2020'
...
---
_id: '3740'
abstract:
- lang: eng
text: Oblique propagation of semi-guided waves across slab waveguide structures
with bent corners is investigated. A critical angle can be defined beyond which
all radiation losses are suppressed. Additionally an increase of the curvature
radius of the bends also leads to low-loss configurations for incidence angles
below that critical angle. A combination of two bent corner systems represents
a step-like structure, behaving like a Fabry-Perot interferometer, with two partial
reflectors separated by the vertical height between the horizontal slabs. We numerically
analyse typical high-index-contrast Si/SiO2 structures for their reflectance and
transmittance properties. When increasing the curvature radius the resonant effect
becomes less relevant such that full transmittance is reached with less critical
conditions on the vertical distance or the incidence angle. For practical interest
3-D problems are considered, where the structures are excited by the fundamental
mode of a wide, shallow rib waveguide. High transmittance levels can be observed
also for these 3-D configurations depending on the width of the rib.
article_type: letter_note
author:
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Ebers L, Hammer M, Förstner J. Oblique incidence of semi-guided planar waves
on slab waveguide steps: effects of rounded edges. Optics Express. 2018;26(14):18621-18632.
doi:10.1364/OE.26.018621'
apa: 'Ebers, L., Hammer, M., & Förstner, J. (2018). Oblique incidence of semi-guided
planar waves on slab waveguide steps: effects of rounded edges. Optics Express,
26(14), 18621–18632. https://doi.org/10.1364/OE.26.018621'
bibtex: '@article{Ebers_Hammer_Förstner_2018, title={Oblique incidence of semi-guided
planar waves on slab waveguide steps: effects of rounded edges}, volume={26},
DOI={10.1364/OE.26.018621},
number={14}, journal={Optics Express}, publisher={OSA Publishing}, author={Ebers,
Lena and Hammer, Manfred and Förstner, Jens}, year={2018}, pages={18621–18632}
}'
chicago: 'Ebers, Lena, Manfred Hammer, and Jens Förstner. “Oblique Incidence of
Semi-Guided Planar Waves on Slab Waveguide Steps: Effects of Rounded Edges.” Optics
Express 26, no. 14 (2018): 18621–32. https://doi.org/10.1364/OE.26.018621.'
ieee: 'L. Ebers, M. Hammer, and J. Förstner, “Oblique incidence of semi-guided planar
waves on slab waveguide steps: effects of rounded edges,” Optics Express,
vol. 26, no. 14, pp. 18621–18632, 2018.'
mla: 'Ebers, Lena, et al. “Oblique Incidence of Semi-Guided Planar Waves on Slab
Waveguide Steps: Effects of Rounded Edges.” Optics Express, vol. 26, no.
14, OSA Publishing, 2018, pp. 18621–32, doi:10.1364/OE.26.018621.'
short: L. Ebers, M. Hammer, J. Förstner, Optics Express 26 (2018) 18621–18632.
date_created: 2018-08-01T09:31:03Z
date_updated: 2022-01-06T06:59:33Z
ddc:
- '620'
department:
- _id: '61'
doi: 10.1364/OE.26.018621
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-01T09:30:58Z
date_updated: 2018-08-01T09:30:58Z
file_id: '3741'
file_name: 2018-07 Ebers_Hammer_Förstner_OpticsExpress_Oblique incidence of semi
guided planar waves on slab waveguide steps_Rounded Edges.pdf
file_size: 6193865
relation: main_file
file_date_updated: 2018-08-01T09:30:58Z
has_accepted_license: '1'
intvolume: ' 26'
issue: '14'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: 18621-18632
project:
- _id: '56'
name: TRR 142 - Project Area C
- _id: '53'
name: TRR 142
- _id: '75'
name: TRR 142 - Subproject C5
publication: Optics Express
publication_status: published
publisher: OSA Publishing
status: public
title: 'Oblique incidence of semi-guided planar waves on slab waveguide steps: effects
of rounded edges'
type: journal_article
urn: '37409'
user_id: '158'
volume: 26
year: '2018'
...
---
_id: '3743'
abstract:
- lang: eng
text: Frequently, optical integrated circuits combine elements (waveguide channels,
cavities), the simulation of which is well established through mature numerical
eigenproblem solvers. It remains to predict the interaction of these modes. We
address this task by a general, “Hybrid” variant (HCMT) of Coupled Mode Theory.
Using methods from finite-element numerics, the properties of a circuit are approximated
by superpositions of eigen-solutions for its constituents, leading to quantitative,
computationally cheap, and easily interpretable models.
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
citation:
ama: 'Hammer M. Guided Wave Interaction in Photonic Integrated Circuits — A Hybrid
Analytical/Numerical Approach to Coupled Mode Theory. In: Agrawal A, ed. Recent
Trends in Computational Photonics. Vol 204. 204th ed. Springer Series in
Optical Sciences book series. Springer; 2017:77-105.'
apa: Hammer, M. (2017). Guided Wave Interaction in Photonic Integrated Circuits
— A Hybrid Analytical/Numerical Approach to Coupled Mode Theory. In A. Agrawal
(Ed.), Recent Trends in Computational Photonics (204th ed., Vol. 204, pp.
77–105). Springer.
bibtex: '@inbook{Hammer_2017, edition={204}, series={ Springer Series in Optical
Sciences book series}, title={Guided Wave Interaction in Photonic Integrated Circuits
— A Hybrid Analytical/Numerical Approach to Coupled Mode Theory}, volume={204},
booktitle={Recent Trends in Computational Photonics}, publisher={Springer}, author={Hammer,
Manfred}, editor={Agrawal, ArtiEditor}, year={2017}, pages={77–105}, collection={
Springer Series in Optical Sciences book series} }'
chicago: Hammer, Manfred. “Guided Wave Interaction in Photonic Integrated Circuits
— A Hybrid Analytical/Numerical Approach to Coupled Mode Theory.” In Recent
Trends in Computational Photonics, edited by Arti Agrawal, 204th ed., 204:77–105. Springer
Series in Optical Sciences Book Series. Springer, 2017.
ieee: M. Hammer, “Guided Wave Interaction in Photonic Integrated Circuits — A Hybrid
Analytical/Numerical Approach to Coupled Mode Theory,” in Recent Trends in
Computational Photonics, 204th ed., vol. 204, A. Agrawal, Ed. Springer, 2017,
pp. 77–105.
mla: Hammer, Manfred. “Guided Wave Interaction in Photonic Integrated Circuits —
A Hybrid Analytical/Numerical Approach to Coupled Mode Theory.” Recent Trends
in Computational Photonics, edited by Arti Agrawal, 204th ed., vol. 204, Springer,
2017, pp. 77–105.
short: 'M. Hammer, in: A. Agrawal (Ed.), Recent Trends in Computational Photonics,
204th ed., Springer, 2017, pp. 77–105.'
date_created: 2018-08-01T10:44:00Z
date_updated: 2022-01-06T06:59:34Z
department:
- _id: '61'
edition: '204'
editor:
- first_name: Arti
full_name: Agrawal, Arti
last_name: Agrawal
intvolume: ' 204'
keyword:
- tet_topic_waveguide
- tet_topic_numerics
language:
- iso: eng
page: 77-105
publication: Recent Trends in Computational Photonics
publication_identifier:
isbn:
- 978-3-319-55438-9
publication_status: published
publisher: Springer
series_title: ' Springer Series in Optical Sciences book series'
status: public
title: Guided Wave Interaction in Photonic Integrated Circuits — A Hybrid Analytical/Numerical
Approach to Coupled Mode Theory
type: book_chapter
user_id: '55706'
volume: 204
year: '2017'
...
---
_id: '3828'
abstract:
- lang: eng
text: "The 3D implementation of a hybrid analytical/numerical variant of the coupled-mode
theory is discussed.\r\nEigenmodes of the constituting dielectric channels are
computed numerically. The frequency-domain\r\ncoupled-mode models then combine
these into fully vectorial approximations for the optical electromagnetic\r\nfields
of the composite structure. Following a discretization of amplitude functions
by 1D finite elements, pro-\r\ncedures from the realm of finite-element numerics
are applied to establish systems of linear equations for the then-\r\ndiscrete
modal amplitudes. Examples substantiate the functioning of the technique and allow
for some numerical\r\nassessment. The full 3D simulations are highly efficient
in memory consumption, moderately demanding in com-\r\nputational time, and, in
regimes of low radiative losses, sufficiently accurate for practical design. Our
results\r\ninclude the perturbation of guided modes by changes of the refractive
indices, the interaction of waves in parallel,\r\nhorizontally or vertically coupled
straight waveguides, and a series of crossings of potentially overlapping channels\r\nwith
fairly arbitrary relative positions and orientations."
article_type: original
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Samer
full_name: Alhaddad, Samer
last_name: Alhaddad
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Hammer M, Alhaddad S, Förstner J. Hybrid coupled-mode modeling in 3D: perturbed
and coupled channels, and waveguide crossings. Journal of the Optical Society
of America B. 2017;34(3):613-624. doi:10.1364/josab.34.000613'
apa: 'Hammer, M., Alhaddad, S., & Förstner, J. (2017). Hybrid coupled-mode modeling
in 3D: perturbed and coupled channels, and waveguide crossings. Journal of
the Optical Society of America B, 34(3), 613–624. https://doi.org/10.1364/josab.34.000613'
bibtex: '@article{Hammer_Alhaddad_Förstner_2017, title={Hybrid coupled-mode modeling
in 3D: perturbed and coupled channels, and waveguide crossings}, volume={34},
DOI={10.1364/josab.34.000613},
number={3}, journal={Journal of the Optical Society of America B}, publisher={The
Optical Society}, author={Hammer, Manfred and Alhaddad, Samer and Förstner, Jens},
year={2017}, pages={613–624} }'
chicago: 'Hammer, Manfred, Samer Alhaddad, and Jens Förstner. “Hybrid Coupled-Mode
Modeling in 3D: Perturbed and Coupled Channels, and Waveguide Crossings.” Journal
of the Optical Society of America B 34, no. 3 (2017): 613–24. https://doi.org/10.1364/josab.34.000613.'
ieee: 'M. Hammer, S. Alhaddad, and J. Förstner, “Hybrid coupled-mode modeling in
3D: perturbed and coupled channels, and waveguide crossings,” Journal of the
Optical Society of America B, vol. 34, no. 3, pp. 613–624, 2017.'
mla: 'Hammer, Manfred, et al. “Hybrid Coupled-Mode Modeling in 3D: Perturbed and
Coupled Channels, and Waveguide Crossings.” Journal of the Optical Society
of America B, vol. 34, no. 3, The Optical Society, 2017, pp. 613–24, doi:10.1364/josab.34.000613.'
short: M. Hammer, S. Alhaddad, J. Förstner, Journal of the Optical Society of America
B 34 (2017) 613–624.
date_created: 2018-08-07T08:40:41Z
date_updated: 2022-01-06T06:59:38Z
ddc:
- '530'
department:
- _id: '61'
doi: 10.1364/josab.34.000613
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-07T09:46:13Z
date_updated: 2018-09-03T14:09:04Z
file_id: '3829'
file_name: 2017-02 Hammer_Hybrid coupled mode modelling in 3D_Perturbed and coupled
channels and waveguide crossings_Coupled Mode Theory JOSA B.pdf
file_size: 5539592
relation: main_file
file_date_updated: 2018-09-03T14:09:04Z
has_accepted_license: '1'
intvolume: ' 34'
issue: '3'
keyword:
- tet_topic_waveguide
- tet_topic_numerics
language:
- iso: eng
oa: '1'
page: 613-624
publication: Journal of the Optical Society of America B
publication_identifier:
issn:
- 0740-3224
- 1520-8540
publication_status: published
publisher: The Optical Society
status: public
title: 'Hybrid coupled-mode modeling in 3D: perturbed and coupled channels, and waveguide
crossings'
type: journal_article
urn: '38287'
user_id: '158'
volume: 34
year: '2017'
...
---
_id: '3830'
abstract:
- lang: eng
text: "The modal properties of curved dielectric slab waveguides are investigated.
We\r\nconsider quasi-confined, attenuated modes that propagate at oblique angles
with respect to\r\nthe axis through the center of curvature. Our analytical model
describes the transition from\r\nscalar 2-D TE/TM bend modes to lossless spiral
waves at near-axis propagation angles,\r\nwith a continuum of vectorial attenuated
spiral modes in between. Modal solutions are\r\ncharacterized in terms of directional
wavenumbers and attenuation constants. Examples for\r\nvectorial mode profiles
illustrate the effects of oblique wave propagation along the curved\r\nslab segments.
For the regime of lossless spiral waves, the relation with the guided modes\r\nof
corresponding dielectric tubes is demonstrated."
article_type: original
author:
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Ebers L, Hammer M, Förstner J. Spiral modes supported by circular dielectric
tubes and tube segments. Optical and Quantum Electronics. 2017;49(4):49:176.
doi:10.1007/s11082-017-1011-x
apa: Ebers, L., Hammer, M., & Förstner, J. (2017). Spiral modes supported by
circular dielectric tubes and tube segments. Optical and Quantum Electronics,
49(4), 49:176. https://doi.org/10.1007/s11082-017-1011-x
bibtex: '@article{Ebers_Hammer_Förstner_2017, title={Spiral modes supported by circular
dielectric tubes and tube segments}, volume={49}, DOI={10.1007/s11082-017-1011-x},
number={4}, journal={Optical and Quantum Electronics}, publisher={Springer Nature},
author={Ebers, Lena and Hammer, Manfred and Förstner, Jens}, year={2017}, pages={49:176}
}'
chicago: 'Ebers, Lena, Manfred Hammer, and Jens Förstner. “Spiral Modes Supported
by Circular Dielectric Tubes and Tube Segments.” Optical and Quantum Electronics
49, no. 4 (2017): 49:176. https://doi.org/10.1007/s11082-017-1011-x.'
ieee: L. Ebers, M. Hammer, and J. Förstner, “Spiral modes supported by circular
dielectric tubes and tube segments,” Optical and Quantum Electronics, vol.
49, no. 4, p. 49:176, 2017.
mla: Ebers, Lena, et al. “Spiral Modes Supported by Circular Dielectric Tubes and
Tube Segments.” Optical and Quantum Electronics, vol. 49, no. 4, Springer
Nature, 2017, p. 49:176, doi:10.1007/s11082-017-1011-x.
short: L. Ebers, M. Hammer, J. Förstner, Optical and Quantum Electronics 49 (2017)
49:176.
date_created: 2018-08-07T09:52:20Z
date_updated: 2022-01-06T06:59:39Z
ddc:
- '530'
department:
- _id: '61'
doi: 10.1007/s11082-017-1011-x
file:
- access_level: request
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-07T09:56:27Z
date_updated: 2022-01-06T06:59:38Z
file_id: '3831'
file_name: 2017-03 Ebers, Hammer_Spiral modes supported by circular dielectric tubes
and tube segments.pdf
file_size: 2379736
relation: main_file
file_date_updated: 2022-01-06T06:59:38Z
has_accepted_license: '1'
intvolume: ' 49'
issue: '4'
keyword:
- tet_topic_waveguide
language:
- iso: eng
page: 49:176
project:
- _id: '53'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '62'
name: TRR 142 - Subproject A5
publication: Optical and Quantum Electronics
publication_identifier:
issn:
- 0306-8919
- 1572-817X
publication_status: published
publisher: Springer Nature
status: public
title: Spiral modes supported by circular dielectric tubes and tube segments
type: journal_article
urn: '38308'
user_id: '158'
volume: 49
year: '2017'
...
---
_id: '3543'
author:
- first_name: Andre
full_name: Hildebrandt, Andre
last_name: Hildebrandt
- first_name: Samer
full_name: Alhaddad, Samer
id: '42456'
last_name: Alhaddad
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Hildebrandt A, Alhaddad S, Hammer M, Förstner J. Oblique incidence of semi-guided
waves on step-like folds in planar dielectric slabs: Lossless vertical interconnects
in 3D integrated photonic circuits. In: Broquin J-E, Nunzi Conti G, eds. Integrated
Optics: Devices, Materials, and Technologies XX. SPIE; 2016. doi:10.1117/12.2214460'
apa: 'Hildebrandt, A., Alhaddad, S., Hammer, M., & Förstner, J. (2016). Oblique
incidence of semi-guided waves on step-like folds in planar dielectric slabs:
Lossless vertical interconnects in 3D integrated photonic circuits. In J.-E. Broquin
& G. Nunzi Conti (Eds.), Integrated Optics: Devices, Materials, and Technologies
XX. SPIE. https://doi.org/10.1117/12.2214460'
bibtex: '@inproceedings{Hildebrandt_Alhaddad_Hammer_Förstner_2016, title={Oblique
incidence of semi-guided waves on step-like folds in planar dielectric slabs:
Lossless vertical interconnects in 3D integrated photonic circuits}, DOI={10.1117/12.2214460},
booktitle={Integrated Optics: Devices, Materials, and Technologies XX}, publisher={SPIE},
author={Hildebrandt, Andre and Alhaddad, Samer and Hammer, Manfred and Förstner,
Jens}, editor={Broquin, Jean-Emmanuel and Nunzi Conti, GualtieroEditors}, year={2016}
}'
chicago: 'Hildebrandt, Andre, Samer Alhaddad, Manfred Hammer, and Jens Förstner.
“Oblique Incidence of Semi-Guided Waves on Step-like Folds in Planar Dielectric
Slabs: Lossless Vertical Interconnects in 3D Integrated Photonic Circuits.” In
Integrated Optics: Devices, Materials, and Technologies XX, edited by Jean-Emmanuel
Broquin and Gualtiero Nunzi Conti. SPIE, 2016. https://doi.org/10.1117/12.2214460.'
ieee: 'A. Hildebrandt, S. Alhaddad, M. Hammer, and J. Förstner, “Oblique incidence
of semi-guided waves on step-like folds in planar dielectric slabs: Lossless vertical
interconnects in 3D integrated photonic circuits,” in Integrated Optics: Devices,
Materials, and Technologies XX, 2016.'
mla: 'Hildebrandt, Andre, et al. “Oblique Incidence of Semi-Guided Waves on Step-like
Folds in Planar Dielectric Slabs: Lossless Vertical Interconnects in 3D Integrated
Photonic Circuits.” Integrated Optics: Devices, Materials, and Technologies
XX, edited by Jean-Emmanuel Broquin and Gualtiero Nunzi Conti, SPIE, 2016,
doi:10.1117/12.2214460.'
short: 'A. Hildebrandt, S. Alhaddad, M. Hammer, J. Förstner, in: J.-E. Broquin,
G. Nunzi Conti (Eds.), Integrated Optics: Devices, Materials, and Technologies
XX, SPIE, 2016.'
date_created: 2018-07-11T09:35:06Z
date_updated: 2022-01-06T06:59:23Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1117/12.2214460
editor:
- first_name: Jean-Emmanuel
full_name: Broquin, Jean-Emmanuel
last_name: Broquin
- first_name: Gualtiero
full_name: Nunzi Conti, Gualtiero
last_name: Nunzi Conti
file:
- access_level: closed
content_type: application/pdf
creator: fossie
date_created: 2018-07-11T09:38:29Z
date_updated: 2018-07-11T09:38:29Z
file_id: '3544'
file_name: 2016-02 Hildebrandt SPIE OPTO 2016.pdf
file_size: 1239213
relation: main_file
success: 1
file_date_updated: 2018-07-11T09:38:29Z
has_accepted_license: '1'
keyword:
- tet_topic_waveguide
language:
- iso: eng
publication: 'Integrated Optics: Devices, Materials, and Technologies XX'
publication_status: published
publisher: SPIE
status: public
title: 'Oblique incidence of semi-guided waves on step-like folds in planar dielectric
slabs: Lossless vertical interconnects in 3D integrated photonic circuits'
type: conference
user_id: '158'
year: '2016'
...
---
_id: '3934'
abstract:
- lang: eng
text: Typical optical integrated circuits combine elements, like straight and curved
waveguides, or cavities, the simulation and design of which is well established
through numerical eigenproblem-solvers. It remains to predict the interaction
of these modes. We address this task by a ”Hybrid” variant (HCMT) of Coupled Mode
Theory. Using methods from finite-element numerics, the optical properties of
a circuit are approximated by superpositions of eigen-solutions for its constituents,
leading to quantitative, low-dimensional, and interpretable models in the frequency
domain. Spectral scans are complemented by the direct computation of supermode
properties (spectral positions and linewidths, coupling-induced phase shifts).
This contribution outlines the theoretical background, and discusses briefly limitations
and implementational details, with the help of an example of a 2-D coupled-resonator-optical-waveguide
configuration.
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
citation:
ama: 'Hammer M. Wave interaction in photonic integrated circuits: Hybrid analytical
/ numerical coupled mode modeling. In: Broquin J-E, Nunzi Conti G, eds. Integrated
Optics: Devices, Materials, and Technologies XX. SPIE; 2016:975018-975018-8.
doi:10.1117/12.2214331'
apa: 'Hammer, M. (2016). Wave interaction in photonic integrated circuits: Hybrid
analytical / numerical coupled mode modeling. In J.-E. Broquin & G. Nunzi
Conti (Eds.), Integrated Optics: Devices, Materials, and Technologies XX
(pp. 975018-975018–8). San Francisco, USA: SPIE. https://doi.org/10.1117/12.2214331'
bibtex: '@inproceedings{Hammer_2016, title={Wave interaction in photonic integrated
circuits: Hybrid analytical / numerical coupled mode modeling}, DOI={10.1117/12.2214331},
number={9750}, booktitle={Integrated Optics: Devices, Materials, and Technologies
XX}, publisher={SPIE}, author={Hammer, Manfred}, editor={Broquin, Jean-Emmanuel
and Nunzi Conti, GualtieroEditors}, year={2016}, pages={975018-975018–8} }'
chicago: 'Hammer, Manfred. “Wave Interaction in Photonic Integrated Circuits: Hybrid
Analytical / Numerical Coupled Mode Modeling.” In Integrated Optics: Devices,
Materials, and Technologies XX, edited by Jean-Emmanuel Broquin and Gualtiero
Nunzi Conti, 975018-975018–8. SPIE, 2016. https://doi.org/10.1117/12.2214331.'
ieee: 'M. Hammer, “Wave interaction in photonic integrated circuits: Hybrid analytical
/ numerical coupled mode modeling,” in Integrated Optics: Devices, Materials,
and Technologies XX, San Francisco, USA, 2016, no. 9750, pp. 975018-975018–8.'
mla: 'Hammer, Manfred. “Wave Interaction in Photonic Integrated Circuits: Hybrid
Analytical / Numerical Coupled Mode Modeling.” Integrated Optics: Devices,
Materials, and Technologies XX, edited by Jean-Emmanuel Broquin and Gualtiero
Nunzi Conti, no. 9750, SPIE, 2016, pp. 975018-975018–8, doi:10.1117/12.2214331.'
short: 'M. Hammer, in: J.-E. Broquin, G. Nunzi Conti (Eds.), Integrated Optics:
Devices, Materials, and Technologies XX, SPIE, 2016, pp. 975018-975018–8.'
conference:
location: San Francisco, USA
name: Photonics West 2016/OPTO 2016
date_created: 2018-08-20T09:25:13Z
date_updated: 2022-01-06T06:59:56Z
department:
- _id: '61'
doi: 10.1117/12.2214331
editor:
- first_name: Jean-Emmanuel
full_name: Broquin, Jean-Emmanuel
last_name: Broquin
- first_name: Gualtiero
full_name: Nunzi Conti, Gualtiero
last_name: Nunzi Conti
issue: '9750'
keyword:
- tet_topic_waveguide
- tet_topic_numerics
language:
- iso: eng
page: '975018-975018-8 '
publication: 'Integrated Optics: Devices, Materials, and Technologies XX'
publication_status: published
publisher: SPIE
status: public
title: 'Wave interaction in photonic integrated circuits: Hybrid analytical / numerical
coupled mode modeling'
type: conference
user_id: '55706'
year: '2016'
...
---
_id: '3845'
abstract:
- lang: eng
text: The device principle of a prism-based on-chip spectrometer for TE polarization
is introduced. The spectrometer exploits the modal dispersion in planar waveguides
in a layout with slab regions having two different thicknesses of the guiding
layer. The set-up uses parabolic mirrors, for the collimation of light of the
input waveguide and focusing of the light to the receiver waveguides, which relies
on total internal reflection at the interface between two such regions. These
regions are connected adiabatically to prevent unwanted mode conversion and loss
at the edges of the prism. The structure can be fabricated with two wet etching
steps. The paper presents basic theory and a general approach for device optimization.
The latter is illustrated with a numerical example assuming SiON technology.
article_type: original
author:
- first_name: F.
full_name: Civitci, F.
last_name: Civitci
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: H.J.W.M.
full_name: Hoekstra, H.J.W.M.
last_name: Hoekstra
citation:
ama: Civitci F, Hammer M, Hoekstra HJWM. Planar prism spectrometer based on adiabatically
connected waveguiding slabs. Optics Communications. 2015;365:29-37. doi:10.1016/j.optcom.2015.11.066
apa: Civitci, F., Hammer, M., & Hoekstra, H. J. W. M. (2015). Planar prism spectrometer
based on adiabatically connected waveguiding slabs. Optics Communications,
365, 29–37. https://doi.org/10.1016/j.optcom.2015.11.066
bibtex: '@article{Civitci_Hammer_Hoekstra_2015, title={Planar prism spectrometer
based on adiabatically connected waveguiding slabs}, volume={365}, DOI={10.1016/j.optcom.2015.11.066},
journal={Optics Communications}, publisher={Elsevier BV}, author={Civitci, F.
and Hammer, Manfred and Hoekstra, H.J.W.M.}, year={2015}, pages={29–37} }'
chicago: 'Civitci, F., Manfred Hammer, and H.J.W.M. Hoekstra. “Planar Prism Spectrometer
Based on Adiabatically Connected Waveguiding Slabs.” Optics Communications
365 (2015): 29–37. https://doi.org/10.1016/j.optcom.2015.11.066.'
ieee: F. Civitci, M. Hammer, and H. J. W. M. Hoekstra, “Planar prism spectrometer
based on adiabatically connected waveguiding slabs,” Optics Communications,
vol. 365, pp. 29–37, 2015.
mla: Civitci, F., et al. “Planar Prism Spectrometer Based on Adiabatically Connected
Waveguiding Slabs.” Optics Communications, vol. 365, Elsevier BV, 2015,
pp. 29–37, doi:10.1016/j.optcom.2015.11.066.
short: F. Civitci, M. Hammer, H.J.W.M. Hoekstra, Optics Communications 365 (2015)
29–37.
date_created: 2018-08-08T10:27:57Z
date_updated: 2022-01-06T06:59:44Z
ddc:
- '530'
department:
- _id: '61'
doi: 10.1016/j.optcom.2015.11.066
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-08T10:31:23Z
date_updated: 2018-08-08T10:31:23Z
file_id: '3846'
file_name: 2016 Hammer_Planar prism spectrometer based on adiabatically connected
waveguiding slabs.pdf
file_size: 1542539
relation: main_file
success: 1
file_date_updated: 2018-08-08T10:31:23Z
has_accepted_license: '1'
intvolume: ' 365'
keyword:
- tet_topic_waveguide
language:
- iso: eng
page: 29-37
publication: Optics Communications
publication_identifier:
issn:
- 0030-4018
publication_status: published
publisher: Elsevier BV
status: public
title: Planar prism spectrometer based on adiabatically connected waveguiding slabs
type: journal_article
user_id: '55706'
volume: 365
year: '2015'
...
---
_id: '3847'
abstract:
- lang: eng
text: "Sheets of slab waveguides with sharp corners are investigated. By means of
rigorous\r\nnumerical experiments, we look at oblique incidence of semi-guided
plane waves. Radiation losses\r\nvanish beyond a certain critical angle of incidence.
One can thus realize lossless propagation through\r\n90-degree corner configurations,
where the remaining guided waves are still subject to pronounced\r\nreflection
and polarization conversion. A system of two corners can be viewed as a structure
akin to\r\na Fabry-Perot-interferometer. By adjusting the distance between the
two partial reflectors, here the\r\n90-degree corners, one identifies step-like
configurations that transmit the semi-guided plane waves\r\nwithout radiation
losses, and virtually without reflections. Simulations of semi-guided beams with\r\nin-plane
wide Gaussian profiles show that the effect survives in a true 3-D framework."
article_type: original
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Andre
full_name: Hildebrandt, Andre
last_name: Hildebrandt
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Hammer M, Hildebrandt A, Förstner J. Full Resonant Transmission of Semiguided
Planar Waves Through Slab Waveguide Steps at Oblique Incidence. Journal of
Lightwave Technology. 2015;34(3):997-1005. doi:10.1109/jlt.2015.2502431
apa: Hammer, M., Hildebrandt, A., & Förstner, J. (2015). Full Resonant Transmission
of Semiguided Planar Waves Through Slab Waveguide Steps at Oblique Incidence.
Journal of Lightwave Technology, 34(3), 997–1005. https://doi.org/10.1109/jlt.2015.2502431
bibtex: '@article{Hammer_Hildebrandt_Förstner_2015, title={Full Resonant Transmission
of Semiguided Planar Waves Through Slab Waveguide Steps at Oblique Incidence},
volume={34}, DOI={10.1109/jlt.2015.2502431},
number={3}, journal={Journal of Lightwave Technology}, publisher={Institute of
Electrical and Electronics Engineers (IEEE)}, author={Hammer, Manfred and Hildebrandt,
Andre and Förstner, Jens}, year={2015}, pages={997–1005} }'
chicago: 'Hammer, Manfred, Andre Hildebrandt, and Jens Förstner. “Full Resonant
Transmission of Semiguided Planar Waves Through Slab Waveguide Steps at Oblique
Incidence.” Journal of Lightwave Technology 34, no. 3 (2015): 997–1005.
https://doi.org/10.1109/jlt.2015.2502431.'
ieee: M. Hammer, A. Hildebrandt, and J. Förstner, “Full Resonant Transmission of
Semiguided Planar Waves Through Slab Waveguide Steps at Oblique Incidence,” Journal
of Lightwave Technology, vol. 34, no. 3, pp. 997–1005, 2015.
mla: Hammer, Manfred, et al. “Full Resonant Transmission of Semiguided Planar Waves
Through Slab Waveguide Steps at Oblique Incidence.” Journal of Lightwave Technology,
vol. 34, no. 3, Institute of Electrical and Electronics Engineers (IEEE), 2015,
pp. 997–1005, doi:10.1109/jlt.2015.2502431.
short: M. Hammer, A. Hildebrandt, J. Förstner, Journal of Lightwave Technology 34
(2015) 997–1005.
date_created: 2018-08-08T10:34:34Z
date_updated: 2022-01-06T06:59:44Z
ddc:
- '530'
department:
- _id: '61'
doi: 10.1109/jlt.2015.2502431
file:
- access_level: local
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-08T10:37:19Z
date_updated: 2018-09-03T14:43:26Z
file_id: '3848'
file_name: 2016 Hammer,Hildebrandt,Förstner_Full resonant transmission of semi-guided
planar waves.pdf
file_size: 606723
relation: main_file
file_date_updated: 2018-09-03T14:43:26Z
has_accepted_license: '1'
intvolume: ' 34'
issue: '3'
keyword:
- tet_topic_waveguide
language:
- iso: eng
page: 997-1005
publication: Journal of Lightwave Technology
publication_identifier:
issn:
- 0733-8724
- 1558-2213
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: Full Resonant Transmission of Semiguided Planar Waves Through Slab Waveguide
Steps at Oblique Incidence
type: journal_article
user_id: '158'
volume: 34
year: '2015'
...
---
_id: '3894'
abstract:
- lang: eng
text: "We show how to optically connect guiding layers at different elevations in
a 3-D integrated photonic circuit. Transfer of\r\noptical power carried by planar,
semi-guided waves is possible without reflections or radiation losses, and over
large\r\nvertical distances. This functionality is realized through simple step-like
folds of high-contrast dielectric slab waveguides, in combination with oblique
wave incidence, and fulfilling a resonance condition. Radiation losses vanish,
and polarization conversion is suppressed for TE wave incidence beyond certain
critical angles. This can be understood by fundamental arguments resting on a
version of Snell’s law. The two 90° corners of a step act as identical partial
reflectors in a Fabry–Perot-like resonator setup. By selecting the step height,
i.e., the distance between the reflectors, one realizes resonant states with full
transmission. Rigorous quasi-analytical simulations\r\nfor typical silicon/silica
parameters demonstrate the functioning. Combinations of several step junctions
can lead\r\nto other types of optical on-chip connects, e.g., U-turn- or bridge-like
configurations."
article_type: original
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Andre
full_name: Hildebrandt, Andre
last_name: Hildebrandt
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Hammer M, Hildebrandt A, Förstner J. How planar optical waves can be made to
climb dielectric steps. Optics Letters. 2015;40(16):3711-3714. doi:10.1364/ol.40.003711
apa: Hammer, M., Hildebrandt, A., & Förstner, J. (2015). How planar optical
waves can be made to climb dielectric steps. Optics Letters, 40(16),
3711–3714. https://doi.org/10.1364/ol.40.003711
bibtex: '@article{Hammer_Hildebrandt_Förstner_2015, title={How planar optical waves
can be made to climb dielectric steps}, volume={40}, DOI={10.1364/ol.40.003711},
number={16}, journal={Optics Letters}, publisher={The Optical Society}, author={Hammer,
Manfred and Hildebrandt, Andre and Förstner, Jens}, year={2015}, pages={3711–3714}
}'
chicago: 'Hammer, Manfred, Andre Hildebrandt, and Jens Förstner. “How Planar Optical
Waves Can Be Made to Climb Dielectric Steps.” Optics Letters 40, no. 16
(2015): 3711–14. https://doi.org/10.1364/ol.40.003711.'
ieee: M. Hammer, A. Hildebrandt, and J. Förstner, “How planar optical waves can
be made to climb dielectric steps,” Optics Letters, vol. 40, no. 16, pp.
3711–3714, 2015.
mla: Hammer, Manfred, et al. “How Planar Optical Waves Can Be Made to Climb Dielectric
Steps.” Optics Letters, vol. 40, no. 16, The Optical Society, 2015, pp.
3711–14, doi:10.1364/ol.40.003711.
short: M. Hammer, A. Hildebrandt, J. Förstner, Optics Letters 40 (2015) 3711–3714.
date_created: 2018-08-13T09:39:06Z
date_updated: 2022-01-06T06:59:51Z
ddc:
- '530'
department:
- _id: '61'
doi: 10.1364/ol.40.003711
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-13T09:41:32Z
date_updated: 2018-09-04T19:35:48Z
file_id: '3895'
file_name: 2015-07 Hammer,Hildebrandt,Förstner_How planar optical waves can be made
to climb dielectric steps_Optics Letter.pdf
file_size: 1504149
relation: main_file
file_date_updated: 2018-09-04T19:35:48Z
has_accepted_license: '1'
intvolume: ' 40'
issue: '16'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: 3711-3714
publication: Optics Letters
publication_identifier:
issn:
- 0146-9592
- 1539-4794
publication_status: published
publisher: The Optical Society
status: public
title: How planar optical waves can be made to climb dielectric steps
type: journal_article
urn: '38942'
user_id: '158'
volume: 40
year: '2015'
...
---
_id: '3890'
abstract:
- lang: eng
text: "The incidenceofthin-film-guided, in-planeunguidedwavesatobliqueanglesonstraightdiscontinuities
of dielectricslabwaveguides,anearlyproblemofintegratedoptics,isbeingre-considered.The3-D
frequencydomainMaxwellequationsreducetoaparametrizedinhomogeneousvectorialproblemona\r\n2-D
computationaldomain,withtransparent-influx boundaryconditions.Weproposearigorousvec-\r\ntorial
solverbasedonsimultaneousexpansionsintopolarizedlocalslabeigenmodesalongthetwo\r\northogonal
crosssectioncoordinates(quadridirectionaleigenmodepropagationQUEP).Thequasi-ana-\r\nlytical
schemeisapplicabletoconfigurations with — in principle — arbitrary crosssectiongeometries.\r\nExamples
forahigh-contrastfacetofanasymmetricslabwaveguide,forthelateralexcitationofa\r\nchannel
waveguide,andforastepdiscontinuitybetweenslabwaveguidesofdifferentthicknessesare\r\ndiscussed."
article_type: original
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
citation:
ama: 'Hammer M. Oblique incidence of semi-guided waves on rectangular slab waveguide
discontinuities: A vectorial QUEP solver. Optics Communications. 2014;338:447-456.
doi:10.1016/j.optcom.2014.09.087'
apa: 'Hammer, M. (2014). Oblique incidence of semi-guided waves on rectangular slab
waveguide discontinuities: A vectorial QUEP solver. Optics Communications,
338, 447–456. https://doi.org/10.1016/j.optcom.2014.09.087'
bibtex: '@article{Hammer_2014, title={Oblique incidence of semi-guided waves on
rectangular slab waveguide discontinuities: A vectorial QUEP solver}, volume={338},
DOI={10.1016/j.optcom.2014.09.087},
journal={Optics Communications}, publisher={Elsevier BV}, author={Hammer, Manfred},
year={2014}, pages={447–456} }'
chicago: 'Hammer, Manfred. “Oblique Incidence of Semi-Guided Waves on Rectangular
Slab Waveguide Discontinuities: A Vectorial QUEP Solver.” Optics Communications
338 (2014): 447–56. https://doi.org/10.1016/j.optcom.2014.09.087.'
ieee: 'M. Hammer, “Oblique incidence of semi-guided waves on rectangular slab waveguide
discontinuities: A vectorial QUEP solver,” Optics Communications, vol.
338, pp. 447–456, 2014.'
mla: 'Hammer, Manfred. “Oblique Incidence of Semi-Guided Waves on Rectangular Slab
Waveguide Discontinuities: A Vectorial QUEP Solver.” Optics Communications,
vol. 338, Elsevier BV, 2014, pp. 447–56, doi:10.1016/j.optcom.2014.09.087.'
short: M. Hammer, Optics Communications 338 (2014) 447–456.
date_created: 2018-08-13T09:28:01Z
date_updated: 2022-01-06T06:59:50Z
ddc:
- '530'
department:
- _id: '61'
doi: 10.1016/j.optcom.2014.09.087
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-13T09:29:14Z
date_updated: 2018-08-13T09:29:14Z
file_id: '3891'
file_name: 2015 Hammer_Oblique incidence of semi-guided waves on rectangular slab
waveguide discontinuities_A vectorial QUEP solver_Optics communications.pdf
file_size: 1872449
relation: main_file
success: 1
file_date_updated: 2018-08-13T09:29:14Z
has_accepted_license: '1'
intvolume: ' 338'
keyword:
- tet_topic_waveguide
- tet_topic_numerics
language:
- iso: eng
page: 447-456
publication: Optics Communications
publication_identifier:
issn:
- 0030-4018
publication_status: published
publisher: Elsevier BV
status: public
title: 'Oblique incidence of semi-guided waves on rectangular slab waveguide discontinuities:
A vectorial QUEP solver'
type: journal_article
user_id: '55706'
volume: 338
year: '2014'
...
---
_id: '3937'
abstract:
- lang: eng
text: "The relevance of our definition for sensitivity in refractometric sensing,
being the relative change in the transmittance\r\nof a certain output channel
of an optical device over the change in the refractive index of the probed\r\nmaterial,
is discussed. It is compared to one based on spectral shift per refractive index
unit change. Further, there\r\nis discussion on how group delay and sensitivity
are interrelated and can be converted into each other and which\r\nphysical quantities
are relevant for high sensitivity. As a by-product of the theory presented, a
general expression\r\nrelating group delay and the ratio of the time-averaged
optical energy and the input power is presented."
article_number: 1561-1567
article_type: original
author:
- first_name: Hugo J. W. M.
full_name: Hoekstra, Hugo J. W. M.
last_name: Hoekstra
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
citation:
ama: Hoekstra HJWM, Hammer M. General relation for group delay and the relevance
of group delay for refractometric sensing. Journal of the Optical Society of
America B. 2014;31(7). doi:10.1364/josab.31.001561
apa: Hoekstra, H. J. W. M., & Hammer, M. (2014). General relation for group
delay and the relevance of group delay for refractometric sensing. Journal
of the Optical Society of America B, 31(7). https://doi.org/10.1364/josab.31.001561
bibtex: '@article{Hoekstra_Hammer_2014, title={General relation for group delay
and the relevance of group delay for refractometric sensing}, volume={31}, DOI={10.1364/josab.31.001561}, number={71561–1567},
journal={Journal of the Optical Society of America B}, publisher={The Optical
Society}, author={Hoekstra, Hugo J. W. M. and Hammer, Manfred}, year={2014} }'
chicago: Hoekstra, Hugo J. W. M., and Manfred Hammer. “General Relation for Group
Delay and the Relevance of Group Delay for Refractometric Sensing.” Journal
of the Optical Society of America B 31, no. 7 (2014). https://doi.org/10.1364/josab.31.001561.
ieee: H. J. W. M. Hoekstra and M. Hammer, “General relation for group delay and
the relevance of group delay for refractometric sensing,” Journal of the Optical
Society of America B, vol. 31, no. 7, 2014.
mla: Hoekstra, Hugo J. W. M., and Manfred Hammer. “General Relation for Group Delay
and the Relevance of Group Delay for Refractometric Sensing.” Journal of the
Optical Society of America B, vol. 31, no. 7, 1561–1567, The Optical Society,
2014, doi:10.1364/josab.31.001561.
short: H.J.W.M. Hoekstra, M. Hammer, Journal of the Optical Society of America B
31 (2014).
date_created: 2018-08-20T09:59:35Z
date_updated: 2022-01-06T06:59:57Z
ddc:
- '530'
department:
- _id: '61'
doi: 10.1364/josab.31.001561
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-20T10:00:33Z
date_updated: 2018-08-20T10:00:33Z
file_id: '3938'
file_name: 2014_07_Hoekstra,Hammer_General relation for group delay and the relevance
of group delay for refractometric sensing_OSA.pdf
file_size: 364221
relation: main_file
success: 1
file_date_updated: 2018-08-20T10:00:33Z
has_accepted_license: '1'
intvolume: ' 31'
issue: '7'
keyword:
- tet_topic_waveguide
language:
- iso: eng
publication: Journal of the Optical Society of America B
publication_identifier:
issn:
- 0740-3224
- 1520-8540
publication_status: published
publisher: The Optical Society
status: public
title: General relation for group delay and the relevance of group delay for refractometric
sensing
type: journal_article
user_id: '55706'
volume: 31
year: '2014'
...