---
_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'
...