---
_id: '21932'
abstract:
- lang: eng
text: Gaussian-beam-like bundles of semi-guided waves propagating in a dielectric
slab can excite modes with high-order optical angular momentum supported by a
circular fiber. We consider a multimode step-index fiber with a high-index coating,
where the waves in the slab are evanescently coupled to the modes of the fiber.
Conditions for effective resonant interaction are identified. Based on a hybrid
analytical–numerical coupled mode model, our simulations predict that substantial
fractions of the input power can be focused into waves with specific orbital angular
momentum, of excellent purity, with a clear distinction between degenerate modes
with opposite vorticity.
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 guided waves
with high-order optical angular momentum. Journal of the Optical Society of
America B. 2021;38(5):1717. doi:10.1364/josab.422731
apa: Hammer, M., Ebers, L., & Förstner, J. (2021). Resonant evanescent excitation
of guided waves with high-order optical angular momentum. Journal of the Optical
Society of America B, 38(5), 1717. https://doi.org/10.1364/josab.422731
bibtex: '@article{Hammer_Ebers_Förstner_2021, title={Resonant evanescent excitation
of guided waves with high-order optical angular momentum}, volume={38}, DOI={10.1364/josab.422731}, number={5},
journal={Journal of the Optical Society of America B}, author={Hammer, Manfred
and Ebers, Lena and Förstner, Jens}, year={2021}, pages={1717} }'
chicago: 'Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation
of Guided Waves with High-Order Optical Angular Momentum.” Journal of the Optical
Society of America B 38, no. 5 (2021): 1717. https://doi.org/10.1364/josab.422731.'
ieee: M. Hammer, L. Ebers, and J. Förstner, “Resonant evanescent excitation of guided
waves with high-order optical angular momentum,” Journal of the Optical Society
of America B, vol. 38, no. 5, p. 1717, 2021.
mla: Hammer, Manfred, et al. “Resonant Evanescent Excitation of Guided Waves with
High-Order Optical Angular Momentum.” Journal of the Optical Society of America
B, vol. 38, no. 5, 2021, p. 1717, doi:10.1364/josab.422731.
short: M. Hammer, L. Ebers, J. Förstner, Journal of the Optical Society of America
B 38 (2021) 1717.
date_created: 2021-04-30T11:54:03Z
date_updated: 2022-01-06T06:55:20Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
doi: 10.1364/josab.422731
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2021-04-30T11:57:14Z
date_updated: 2021-04-30T11:57:14Z
file_id: '21933'
file_name: oamex.pdf
file_size: 1963211
relation: main_file
- access_level: local
content_type: application/pdf
creator: fossie
date_created: 2021-04-30T11:59:16Z
date_updated: 2021-04-30T11:59:16Z
embargo: 2022-05-01
embargo_to: open_access
file_id: '21934'
file_name: 2021-04 Hammer - JOSA B - Resonant evanescent excitation of guides waves
with high-order angular momentum.pdf
file_size: 7750006
relation: main_file
file_date_updated: 2021-04-30T11:59:16Z
has_accepted_license: '1'
intvolume: ' 38'
issue: '5'
keyword:
- tet_topic_waveguides
language:
- iso: eng
oa: '1'
page: '1717'
project:
- _id: '56'
name: TRR 142 - Project Area C
- _id: '53'
name: TRR 142
- _id: '75'
name: TRR 142 - Subproject C5
publication: Journal of the Optical Society of America B
publication_identifier:
issn:
- 0740-3224
- 1520-8540
publication_status: published
status: public
title: Resonant evanescent excitation of guided waves with high-order optical angular
momentum
type: journal_article
user_id: '158'
volume: 38
year: '2021'
...
---
_id: '20189'
abstract:
- lang: eng
text: A dielectric step-index optical fiber with tube-like profile is considered,
being positioned with a small gap on top of a dielectric slab waveguide. We propose
a 2.5-D hybrid analytical/numerical coupled mode model for the evanescent excitation
of the tube through semi-guided waves propagating in the slab at oblique angles.
The model combines the directional polarized modes supported by the slab with
analytic solutions for the TE-, TM-, and orbital-angular-momentum (OAM) modes
of the tube-shaped fiber. Implementational details of the scheme are discussed,
complemented by finite-element simulations for verification purposes. Our results
include configurations with resonant in-fiber excitation of OAM modes with large
orbital angular momentum and strong field enhancement.
article_number: '472'
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. Hybrid coupled mode modelling of the evanescent
excitation of a dielectric tube by semi-guided waves at oblique angles. Optical
and Quantum Electronics. 2020;52. doi:10.1007/s11082-020-02595-z
apa: Hammer, M., Ebers, L., & Förstner, J. (2020). Hybrid coupled mode modelling
of the evanescent excitation of a dielectric tube by semi-guided waves at oblique
angles. Optical and Quantum Electronics, 52. https://doi.org/10.1007/s11082-020-02595-z
bibtex: '@article{Hammer_Ebers_Förstner_2020, title={Hybrid coupled mode modelling
of the evanescent excitation of a dielectric tube by semi-guided waves at oblique
angles}, volume={52}, DOI={10.1007/s11082-020-02595-z},
number={472}, journal={Optical and Quantum Electronics}, author={Hammer, Manfred
and Ebers, Lena and Förstner, Jens}, year={2020} }'
chicago: Hammer, Manfred, Lena Ebers, and Jens Förstner. “Hybrid Coupled Mode Modelling
of the Evanescent Excitation of a Dielectric Tube by Semi-Guided Waves at Oblique
Angles.” Optical and Quantum Electronics 52 (2020). https://doi.org/10.1007/s11082-020-02595-z.
ieee: M. Hammer, L. Ebers, and J. Förstner, “Hybrid coupled mode modelling of the
evanescent excitation of a dielectric tube by semi-guided waves at oblique angles,”
Optical and Quantum Electronics, vol. 52, 2020.
mla: Hammer, Manfred, et al. “Hybrid Coupled Mode Modelling of the Evanescent Excitation
of a Dielectric Tube by Semi-Guided Waves at Oblique Angles.” Optical and Quantum
Electronics, vol. 52, 472, 2020, doi:10.1007/s11082-020-02595-z.
short: M. Hammer, L. Ebers, J. Förstner, Optical and Quantum Electronics 52 (2020).
date_created: 2020-10-24T08:03:58Z
date_updated: 2022-01-06T06:54:22Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1007/s11082-020-02595-z
file:
- access_level: closed
content_type: application/pdf
creator: fossie
date_created: 2020-10-24T08:11:40Z
date_updated: 2020-10-24T08:11:40Z
file_id: '20190'
file_name: 2020-10 Hammer - OQE - Hybrid Coupled Mode Modelling Dielectric Tube.pdf
file_size: 2212769
relation: main_file
success: 1
file_date_updated: 2020-10-24T08:11:40Z
has_accepted_license: '1'
intvolume: ' 52'
keyword:
- tet_topic_waveguides
language:
- iso: eng
project:
- _id: '56'
name: TRR 142 - Project Area C
- _id: '75'
name: TRR 142 - Subproject C5
- _id: '53'
name: TRR 142
publication: Optical and Quantum Electronics
publication_identifier:
issn:
- 0306-8919
- 1572-817X
publication_status: published
status: public
title: Hybrid coupled mode modelling of the evanescent excitation of a dielectric
tube by semi-guided waves at oblique angles
type: journal_article
user_id: '158'
volume: 52
year: '2020'
...
---
_id: '20372'
abstract:
- lang: eng
text: A stepwise angular spectrum method (SASM) for curved interfaces is presented
to calculate the wave propagation in planar lens-like integrated optical structures
based on photonic slab waveguides. The method is derived and illustrated for an
effective 2D setup first and then for 3D slab waveguide lenses. We employ slab
waveguides of different thicknesses connected by curved surfaces to realize a
lens-like structure. To simulate the wave propagation in 3D including reflection
and scattering losses, the stepwise angular spectrum method is combined with full
vectorial finite element computations for subproblems with lower complexity. Our
SASM results show excellent agreement with rigorous numerical simulations of the
full structures with a substantially lower computational effort and can be utilized
for the simulation-based design and optimization of complex and large scale setups.
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. Light diffraction in slab waveguide lenses simulated
with the stepwise angular spectrum method. Optics Express. 2020;28(24):36361.
doi:10.1364/oe.409612
apa: Ebers, L., Hammer, M., & Förstner, J. (2020). Light diffraction in slab
waveguide lenses simulated with the stepwise angular spectrum method. Optics
Express, 28(24), 36361. https://doi.org/10.1364/oe.409612
bibtex: '@article{Ebers_Hammer_Förstner_2020, title={Light diffraction in slab waveguide
lenses simulated with the stepwise angular spectrum method}, volume={28}, DOI={10.1364/oe.409612}, number={24},
journal={Optics Express}, author={Ebers, Lena and Hammer, Manfred and Förstner,
Jens}, year={2020}, pages={36361} }'
chicago: 'Ebers, Lena, Manfred Hammer, and Jens Förstner. “Light Diffraction in
Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.” Optics
Express 28, no. 24 (2020): 36361. https://doi.org/10.1364/oe.409612.'
ieee: L. Ebers, M. Hammer, and J. Förstner, “Light diffraction in slab waveguide
lenses simulated with the stepwise angular spectrum method,” Optics Express,
vol. 28, no. 24, p. 36361, 2020.
mla: Ebers, Lena, et al. “Light Diffraction in Slab Waveguide Lenses Simulated with
the Stepwise Angular Spectrum Method.” Optics Express, vol. 28, no. 24,
2020, p. 36361, doi:10.1364/oe.409612.
short: L. Ebers, M. Hammer, J. Förstner, Optics Express 28 (2020) 36361.
date_created: 2020-11-17T09:52:47Z
date_updated: 2022-01-06T06:54:26Z
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1364/oe.409612
intvolume: ' 28'
issue: '24'
keyword:
- tet_topic_waveguides
language:
- iso: eng
page: '36361'
project:
- _id: '53'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '74'
name: TRR 142 - Subproject C4
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
status: public
title: Light diffraction in slab waveguide lenses simulated with the stepwise angular
spectrum method
type: journal_article
user_id: '158'
volume: 28
year: '2020'
...
---
_id: '12908'
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. Oblique quasi-lossless excitation of a thin
silicon slab waveguide: a guided-wave variant of an anti-reflection coating. Journal
of the Optical Society of America B. 2019;36:2395. doi:10.1364/josab.36.002395'
apa: 'Hammer, M., Ebers, L., & Förstner, J. (2019). Oblique quasi-lossless excitation
of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection
coating. Journal of the Optical Society of America B, 36, 2395.
https://doi.org/10.1364/josab.36.002395'
bibtex: '@article{Hammer_Ebers_Förstner_2019, title={Oblique quasi-lossless excitation
of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection
coating}, volume={36}, DOI={10.1364/josab.36.002395},
journal={Journal of the Optical Society of America B}, author={Hammer, Manfred
and Ebers, Lena and Förstner, Jens}, year={2019}, pages={2395} }'
chicago: 'Hammer, Manfred, Lena Ebers, and Jens Förstner. “Oblique Quasi-Lossless
Excitation of a Thin Silicon Slab Waveguide: A Guided-Wave Variant of an Anti-Reflection
Coating.” Journal of the Optical Society of America B 36 (2019): 2395.
https://doi.org/10.1364/josab.36.002395.'
ieee: 'M. Hammer, L. Ebers, and J. Förstner, “Oblique quasi-lossless excitation
of a thin silicon slab waveguide: a guided-wave variant of an anti-reflection
coating,” Journal of the Optical Society of America B, vol. 36, p. 2395,
2019.'
mla: 'Hammer, Manfred, et al. “Oblique Quasi-Lossless Excitation of a Thin Silicon
Slab Waveguide: A Guided-Wave Variant of an Anti-Reflection Coating.” Journal
of the Optical Society of America B, vol. 36, 2019, p. 2395, doi:10.1364/josab.36.002395.'
short: M. Hammer, L. Ebers, J. Förstner, Journal of the Optical Society of America
B 36 (2019) 2395.
date_created: 2019-08-09T07:07:45Z
date_updated: 2022-01-06T06:51:24Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1364/josab.36.002395
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2019-08-09T07:09:04Z
date_updated: 2019-08-09T07:09:04Z
file_id: '12909'
file_name: 2019-07 Hammer - JOSA B - Oblique Quasi-Lossless Excitation of a Thin
Silicon Slab Waveguide (preprint).pdf
file_size: 728533
relation: main_file
file_date_updated: 2019-08-09T07:09:04Z
has_accepted_license: '1'
intvolume: ' 36'
keyword:
- tet_topic_waveguides
language:
- iso: eng
oa: '1'
page: '2395'
project:
- _id: '53'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '75'
name: TRR 142 - Subproject C5
publication: Journal of the Optical Society of America B
publication_identifier:
issn:
- 0740-3224
- 1520-8540
publication_status: published
status: public
title: 'Oblique quasi-lossless excitation of a thin silicon slab waveguide: a guided-wave
variant of an anti-reflection coating'
type: journal_article
user_id: '158'
volume: 36
year: '2019'
...
---
_id: '14990'
abstract:
- lang: eng
text: We investigate optical microresonators consisting of either one or two coupled
rectangular strips between upper and lower slab waveguides. The cavities are evanescently
excited under oblique angles by thin-film guided, in-plane unguided waves supported
by one of the slab waveguides. Beyond a specific incidence angle, losses are fully
suppressed. The interaction between the guided mode of the cavity-strip and the
incoming slab modes leads to resonant behavior for specific incidence angles and
gaps. For a single cavity, at resonance, the input power is equally split among
each of the four output ports, while for two cavities an add-drop filter can be
realized that, at resonance, routes the incoming power completely to the forward
drop waveguide via the cavity. For both applications, the strength of the interaction
is controlled by the gaps between cavities and waveguides.
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: Manuel B.
full_name: Berkemeier, Manuel B.
last_name: Berkemeier
- first_name: Alexander
full_name: Menzel, Alexander
last_name: Menzel
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Ebers L, Hammer M, Berkemeier MB, Menzel A, Förstner J. Coupled microstrip-cavities
under oblique incidence of semi-guided waves: a lossless integrated optical add-drop
filter. OSA Continuum. 2019;2:3288. doi:10.1364/osac.2.003288'
apa: 'Ebers, L., Hammer, M., Berkemeier, M. B., Menzel, A., & Förstner, J. (2019).
Coupled microstrip-cavities under oblique incidence of semi-guided waves: a lossless
integrated optical add-drop filter. OSA Continuum, 2, 3288. https://doi.org/10.1364/osac.2.003288'
bibtex: '@article{Ebers_Hammer_Berkemeier_Menzel_Förstner_2019, title={Coupled microstrip-cavities
under oblique incidence of semi-guided waves: a lossless integrated optical add-drop
filter}, volume={2}, DOI={10.1364/osac.2.003288},
journal={OSA Continuum}, author={Ebers, Lena and Hammer, Manfred and Berkemeier,
Manuel B. and Menzel, Alexander and Förstner, Jens}, year={2019}, pages={3288}
}'
chicago: 'Ebers, Lena, Manfred Hammer, Manuel B. Berkemeier, Alexander Menzel, and
Jens Förstner. “Coupled Microstrip-Cavities under Oblique Incidence of Semi-Guided
Waves: A Lossless Integrated Optical Add-Drop Filter.” OSA Continuum 2
(2019): 3288. https://doi.org/10.1364/osac.2.003288.'
ieee: 'L. Ebers, M. Hammer, M. B. Berkemeier, A. Menzel, and J. Förstner, “Coupled
microstrip-cavities under oblique incidence of semi-guided waves: a lossless integrated
optical add-drop filter,” OSA Continuum, vol. 2, p. 3288, 2019.'
mla: 'Ebers, Lena, et al. “Coupled Microstrip-Cavities under Oblique Incidence of
Semi-Guided Waves: A Lossless Integrated Optical Add-Drop Filter.” OSA Continuum,
vol. 2, 2019, p. 3288, doi:10.1364/osac.2.003288.'
short: L. Ebers, M. Hammer, M.B. Berkemeier, A. Menzel, J. Förstner, OSA Continuum
2 (2019) 3288.
date_created: 2019-11-15T07:21:20Z
date_updated: 2022-01-06T06:52:13Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
doi: 10.1364/osac.2.003288
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2019-11-15T15:33:26Z
date_updated: 2019-11-15T15:33:26Z
file_id: '15012'
file_name: 2019-11-12 Ebers - Add Drop Filter - OSA continuum (official version).pdf
file_size: 882779
relation: main_file
file_date_updated: 2019-11-15T15:33:26Z
has_accepted_license: '1'
intvolume: ' 2'
keyword:
- tet_topic_waveguides
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.osapublishing.org/osac/abstract.cfm?uri=osac-2-11-3288
oa: '1'
page: '3288'
project:
- _id: '53'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '75'
name: TRR 142 - Subproject C5
publication: OSA Continuum
publication_identifier:
issn:
- 2578-7519
publication_status: published
status: public
title: 'Coupled microstrip-cavities under oblique incidence of semi-guided waves:
a lossless integrated optical add-drop filter'
type: journal_article
user_id: '158'
volume: 2
year: '2019'
...
---
_id: '7720'
abstract:
- lang: ger
text: 'Die Erfindung betrifft einen optischen Übergang zwischen zwei optischen Schichtwellenleitern.
Dazu ist eine Anordnung vorgesehen aus einem ersten optischen Schichtwellenleiter
(2) und einem zweiten optischen Schichtwellenleiter (3), wobei der erste optische
Schichtwellenleiter (2) und der zweite optische Schichtwellenleiter (3) voneinander
verschiedene über ihre jeweilige Länge konstante Dicken (d, r) aufweisen, der
erste optische Schichtwellenleiter (2) mit dem zweiten optischen Schichtwellenleiter
(3) mittels einer optischen Schichtwellenleiterstruktur (4) verbunden ist, die
über ihre gesamte Länge (w) eine Dicke (h) aufweist, die zwischen der Dicke (d)
des ersten optischen Schichtwellenleiters (2) und der Dicke (r) des zweiten optischen
Schichtwellenleiters (3) liegt. Erfindungsgemäß ist die Dicke (h) der optischen
Schichtwellenleiterstruktur (4) über die gesamte Länge (w) der optischen Schichtwellenleiterstruktur
(4) konstant. Damit wird eine Möglichkeit für einen effizienten und mit geringen
Verlusten behafteten Übergang zwischen zwei optischen Schichtwellenleitern mit
unterschiedlicher Dicke bereitgestellt. '
- lang: eng
text: The invention relates to an optical junction between two optical planar waveguides.
For this purpose, an arrangement is provided of a first optical layer waveguide
(2) and a second optical slab waveguide (3), wherein the first optical layer waveguide
(2) and the second optical slab waveguide (3) different from each other is constant
over their respective length of thicknesses (d, r ) which the first optical layer
waveguide (2) with the second optical film waveguide (3) (by means of an optical
layer waveguide structure 4) is connected, which (along their entire length w)
has a thickness (h) which is between the thickness (d) the first optical waveguide
layer (2) and the thickness (r) of the second optical waveguide layer (3). According
to the invention, the thickness (h) of the optical layer waveguide structure (4)
over the entire length (w) of the optical layer waveguide structure (4) constant.
Thus, a possibility for an efficient and entailing low loss transition between
two optical planar waveguides is provided with different thickness.
application_date: 2018-04-05
application_number: '102018108110'
author:
- 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: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
citation:
ama: Hammer M, Förstner J, Ebers L. Optical transition between two optical waveguides
layer and method for transmitting light. Published online 2019.
apa: Hammer, M., Förstner, J., & Ebers, L. (2019). Optical transition between
two optical waveguides layer and method for transmitting light.
bibtex: '@article{Hammer_Förstner_Ebers_2019, title={Optical transition between
two optical waveguides layer and method for transmitting light}, author={Hammer,
Manfred and Förstner, Jens and Ebers, Lena}, year={2019} }'
chicago: Hammer, Manfred, Jens Förstner, and Lena Ebers. “Optical Transition between
Two Optical Waveguides Layer and Method for Transmitting Light,” 2019.
ieee: M. Hammer, J. Förstner, and L. Ebers, “Optical transition between two optical
waveguides layer and method for transmitting light.” 2019.
mla: Hammer, Manfred, et al. Optical Transition between Two Optical Waveguides
Layer and Method for Transmitting Light. 2019.
short: M. Hammer, J. Förstner, L. Ebers, (2019).
date_created: 2019-02-15T10:25:59Z
date_updated: 2022-04-27T07:35:46Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
file:
- access_level: closed
content_type: application/pdf
creator: fossie
date_created: 2019-02-15T10:21:08Z
date_updated: 2019-02-15T10:21:08Z
file_id: '7721'
file_name: 2019-01-31 DE-Patentschrift_5349.pdf
file_size: 155604
relation: main_file
success: 1
file_date_updated: 2019-02-15T10:21:08Z
has_accepted_license: '1'
ipc: G02B 6/26
ipn: DE102018108110B3
keyword:
- tet_topic_waveguides
main_file_link:
- url: https://patents.google.com/patent/DE102018108110B3/en
page: '9'
project:
- _id: '53'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '75'
name: TRR 142 - Subproject C5
publication_date: 2019-01-31
status: public
title: Optical transition between two optical waveguides layer and method for transmitting
light
type: patent
user_id: '158'
year: '2019'
...
---
_id: '8634'
abstract:
- lang: eng
text: "A rectangular dielectric strip at some distance above an optical slab waveguide
is\r\nbeing considered, for evanescent excitation of the strip through the semi-guided
waves supported\r\nby the slab, at specific oblique angles. The 2.5-D configuration
shows resonant transmission\r\nproperties with respect to variations of the angle
of incidence, or of the excitation frequency,\r\nrespectively. The strength of
the interaction can be controlled by the gap between strip and slab.\r\nFor increasing
distance, our simulations predict resonant states with unit extremal reflectance\r\nof
an angular or spectral width that tends to zero, i.e. resonances with a Q-factor
that tends\r\nto infinity, while the resonance position approaches the level of
the guided mode of the strip.\r\nThis exceptionally simple system realizes what
might be termed a “bound state coupled to the\r\ncontinuum”."
article_type: original
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. Oblique evanescent excitation of a dielectric
strip: A model resonator with an open optical cavity of unlimited Q. Optics
Express. 2019;27(7):8. doi:10.1364/OE.27.009313'
apa: 'Hammer, M., Ebers, L., & Förstner, J. (2019). Oblique evanescent excitation
of a dielectric strip: A model resonator with an open optical cavity of unlimited
Q. Optics Express, 27(7), 8. https://doi.org/10.1364/OE.27.009313'
bibtex: '@article{Hammer_Ebers_Förstner_2019, title={Oblique evanescent excitation
of a dielectric strip: A model resonator with an open optical cavity of unlimited
Q}, volume={27}, DOI={10.1364/OE.27.009313},
number={7}, journal={Optics Express}, author={Hammer, Manfred and Ebers, Lena
and Förstner, Jens}, year={2019}, pages={8} }'
chicago: 'Hammer, Manfred, Lena Ebers, and Jens Förstner. “Oblique Evanescent Excitation
of a Dielectric Strip: A Model Resonator with an Open Optical Cavity of Unlimited
Q.” Optics Express 27, no. 7 (2019): 8. https://doi.org/10.1364/OE.27.009313.'
ieee: 'M. Hammer, L. Ebers, and J. Förstner, “Oblique evanescent excitation of a
dielectric strip: A model resonator with an open optical cavity of unlimited Q,”
Optics Express, vol. 27, no. 7, p. 8, 2019, doi: 10.1364/OE.27.009313.'
mla: 'Hammer, Manfred, et al. “Oblique Evanescent Excitation of a Dielectric Strip:
A Model Resonator with an Open Optical Cavity of Unlimited Q.” Optics Express,
vol. 27, no. 7, 2019, p. 8, doi:10.1364/OE.27.009313.'
short: M. Hammer, L. Ebers, J. Förstner, Optics Express 27 (2019) 8.
date_created: 2019-03-26T10:39:00Z
date_updated: 2023-01-03T10:34:29Z
ddc:
- '600'
department:
- _id: '61'
doi: 10.1364/OE.27.009313
file:
- access_level: closed
content_type: application/pdf
creator: nprante
date_created: 2019-03-27T13:47:50Z
date_updated: 2019-03-27T13:47:50Z
file_id: '8714'
file_name: oe-27-7-9313.pdf
file_size: 2388537
relation: main_file
success: 1
file_date_updated: 2019-03-27T13:47:50Z
has_accepted_license: '1'
intvolume: ' 27'
issue: '7'
keyword:
- tet_topic_waveguides
language:
- iso: eng
page: '8'
publication: Optics Express
status: public
title: 'Oblique evanescent excitation of a dielectric strip: A model resonator with
an open optical cavity of unlimited Q'
type: journal_article
user_id: '158'
volume: 27
year: '2019'
...
---
_id: '4579'
abstract:
- lang: eng
text: Semi-guided waves confined in dielectric slab waveguides are being considered
for oblique angles of propagation. If the waves encounter a linear discontinuity
of (mostly) arbitrary shape and extension, a variant of Snell's law applies, separately
for each pair of incoming and outgoing modes. Depending on the effective indices
involved, and on the angle of incidence, power transfer to specific outgoing waves
can be allowed or forbidden. In particular, critical angles of incidence can be
identified, beyond which any power transfer to non-guided waves is forbidden,
i.e. all radiative losses are suppressed. In that case the input power is carried
away from the discontinuity exclusively by reflected semi-guided waves in the
input slab, or by semi-guided waves that are transmitted into other outgoing slab
waveguides. Vectorial equations on a 2-D cross sectional domain apply. These are
formally identical to the equations that govern the eigenmodes of 3-D channel
waveguides. Here, however, these need to be solved not as an eigenvalue problem,
but as an inhomogeneous problem with a right-hand-side that is given by the incoming
semi-guided wave, and subject to transparent boundary conditions. The equations
resemble a standard 2-D Helmholtz problem, with an effective permittivity in place
of the actual relative permittivity. Depending on the properties of the incoming
wave, including the angle of incidence, this effective permittivity can become
locally negative, causing the suppression of propagating outgoing waves. A series
of high-contrast example configurations are discussed, where these effects lead
to - in some respects - quite surprising transmission characteristics.
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: Andre
full_name: Hildebrandt, Andre
last_name: Hildebrandt
- first_name: Samer
full_name: Alhaddad, Samer
id: '42456'
last_name: Alhaddad
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Hammer M, Ebers L, Hildebrandt A, Alhaddad S, Förstner J. Oblique Semi-Guided
Waves: 2-D Integrated Photonics with Negative Effective Permittivity. In: 2018
IEEE 17th International Conference on Mathematical Methods in Electromagnetic
Theory (MMET). IEEE; 2018. doi:10.1109/mmet.2018.8460455'
apa: 'Hammer, M., Ebers, L., Hildebrandt, A., Alhaddad, S., & Förstner, J. (2018).
Oblique Semi-Guided Waves: 2-D Integrated Photonics with Negative Effective Permittivity.
In 2018 IEEE 17th International Conference on Mathematical Methods in Electromagnetic
Theory (MMET). IEEE. https://doi.org/10.1109/mmet.2018.8460455'
bibtex: '@inproceedings{Hammer_Ebers_Hildebrandt_Alhaddad_Förstner_2018, title={Oblique
Semi-Guided Waves: 2-D Integrated Photonics with Negative Effective Permittivity},
DOI={10.1109/mmet.2018.8460455},
booktitle={2018 IEEE 17th International Conference on Mathematical Methods in
Electromagnetic Theory (MMET)}, publisher={IEEE}, author={Hammer, Manfred and
Ebers, Lena and Hildebrandt, Andre and Alhaddad, Samer and Förstner, Jens}, year={2018}
}'
chicago: 'Hammer, Manfred, Lena Ebers, Andre Hildebrandt, Samer Alhaddad, and Jens
Förstner. “Oblique Semi-Guided Waves: 2-D Integrated Photonics with Negative Effective
Permittivity.” In 2018 IEEE 17th International Conference on Mathematical Methods
in Electromagnetic Theory (MMET). IEEE, 2018. https://doi.org/10.1109/mmet.2018.8460455.'
ieee: 'M. Hammer, L. Ebers, A. Hildebrandt, S. Alhaddad, and J. Förstner, “Oblique
Semi-Guided Waves: 2-D Integrated Photonics with Negative Effective Permittivity,”
in 2018 IEEE 17th International Conference on Mathematical Methods in Electromagnetic
Theory (MMET), 2018.'
mla: 'Hammer, Manfred, et al. “Oblique Semi-Guided Waves: 2-D Integrated Photonics
with Negative Effective Permittivity.” 2018 IEEE 17th International Conference
on Mathematical Methods in Electromagnetic Theory (MMET), IEEE, 2018, doi:10.1109/mmet.2018.8460455.'
short: 'M. Hammer, L. Ebers, A. Hildebrandt, S. Alhaddad, J. Förstner, in: 2018
IEEE 17th International Conference on Mathematical Methods in Electromagnetic
Theory (MMET), IEEE, 2018.'
date_created: 2018-10-02T17:11:59Z
date_updated: 2022-01-06T07:01:13Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1109/mmet.2018.8460455
file:
- access_level: closed
content_type: application/pdf
creator: fossie
date_created: 2018-10-02T17:13:55Z
date_updated: 2018-10-02T17:13:55Z
file_id: '4580'
file_name: 2018-09 Hammer - MMET (final draft).pdf
file_size: 242956
relation: main_file
success: 1
file_date_updated: 2018-10-02T17:13:55Z
has_accepted_license: '1'
keyword:
- tet_topic_waveguides
project:
- _id: '53'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '75'
name: TRR 142 - Subproject C5
publication: 2018 IEEE 17th International Conference on Mathematical Methods in Electromagnetic
Theory (MMET)
publication_identifier:
isbn:
- '9781538654385'
publication_status: published
publisher: IEEE
status: public
title: 'Oblique Semi-Guided Waves: 2-D Integrated Photonics with Negative Effective
Permittivity'
type: conference
user_id: '158'
year: '2018'
...