---
_id: '63827'
abstract:
- lang: eng
text: Light-emitting diodes (LEDs) are becoming increasingly important across various
sectors of the lighting industry and are being used more frequently. In the field
of symbolic projection, research is increasingly focusing on implementing light
modulation using energy-efficient, incoherent LEDs rather than lasers. Since light
modulation in micro- and nano-optics is typically achieved through phase modulation,
Finite-Difference Time-Domain (FDTD) simulations are employed for analysis. The
objective of this article is to investigate different approaches for approximating
incoherent monochromatic light sources within FDTD simulations. To this end, two
approaches based on dipole sources are considered, as well as a method involving
plane waves with modulated wavefronts based on Cosine–Fourier functions and a
method based on the superposition of Gaussian beams. These methods are evaluated
in terms of their accuracy using a two-dimensional double-slit configuration and
are compared against a fully incoherent analytical reference.
article_number: '128'
article_type: original
author:
- first_name: Dominik
full_name: Metzner, Dominik
last_name: Metzner
- first_name: Jens
full_name: Potthoff, Jens
last_name: Potthoff
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Metzner D, Potthoff J, Zentgraf T, Förstner J. Approximating Incoherent Monochromatic
Light Sources in FDTD Simulations. Photonics. 2026;13(2). doi:10.3390/photonics13020128
apa: Metzner, D., Potthoff, J., Zentgraf, T., & Förstner, J. (2026). Approximating
Incoherent Monochromatic Light Sources in FDTD Simulations. Photonics,
13(2), Article 128. https://doi.org/10.3390/photonics13020128
bibtex: '@article{Metzner_Potthoff_Zentgraf_Förstner_2026, title={Approximating
Incoherent Monochromatic Light Sources in FDTD Simulations}, volume={13}, DOI={10.3390/photonics13020128},
number={2128}, journal={Photonics}, publisher={MDPI AG}, author={Metzner, Dominik
and Potthoff, Jens and Zentgraf, Thomas and Förstner, Jens}, year={2026} }'
chicago: Metzner, Dominik, Jens Potthoff, Thomas Zentgraf, and Jens Förstner. “Approximating
Incoherent Monochromatic Light Sources in FDTD Simulations.” Photonics
13, no. 2 (2026). https://doi.org/10.3390/photonics13020128.
ieee: 'D. Metzner, J. Potthoff, T. Zentgraf, and J. Förstner, “Approximating Incoherent
Monochromatic Light Sources in FDTD Simulations,” Photonics, vol. 13, no.
2, Art. no. 128, 2026, doi: 10.3390/photonics13020128.'
mla: Metzner, Dominik, et al. “Approximating Incoherent Monochromatic Light Sources
in FDTD Simulations.” Photonics, vol. 13, no. 2, 128, MDPI AG, 2026, doi:10.3390/photonics13020128.
short: D. Metzner, J. Potthoff, T. Zentgraf, J. Förstner, Photonics 13 (2026).
date_created: 2026-02-02T07:18:03Z
date_updated: 2026-02-02T21:38:34Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
- _id: '61'
doi: 10.3390/photonics13020128
intvolume: ' 13'
issue: '2'
keyword:
- tet_topic_opticalantenna
- tet_topic_numerics
- tet_topic_meta
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2304-6732/13/2/128
oa: '1'
publication: Photonics
publication_identifier:
issn:
- 2304-6732
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Approximating Incoherent Monochromatic Light Sources in FDTD Simulations
type: journal_article
user_id: '158'
volume: 13
year: '2026'
...
---
_id: '63532'
abstract:
- lang: eng
text: Room-temperature lasing is a key milestone in the development of miniaturized
optoelectronic and photonic devices. We present a simple approach to synthesize
phase-pure quasi-2D layered tin perovskite nanowires with varying quantum well
thicknesses (n = 1 to 4). By incorporating a new organic spacer capable of forming
a hydrogen-bonded organic framework, this method promoted anisotropic crystal
growth and enhanced lattice rigidity. Furthermore, introducing molecular intercalants
enabled controlled crystallization into well-defined nanowires that function as
Fabry–Pérot cavities. Cavities made from n = 2 to 4 perovskites support efficient
and robust near-infrared, room-temperature optically pumped lasing with the threshold
as low as 75.8 μJ/cm2, cavity quality factor over 3000, and negligible degradation
over 106 pulses. A cleaved coupled nanolaser was fabricated as a proof-of-concept
device for photonic applications.
article_type: original
author:
- first_name: Jeong Hui
full_name: Kim, Jeong Hui
last_name: Kim
- first_name: Jeffrey
full_name: Simon, Jeffrey
last_name: Simon
- first_name: Wenhao
full_name: Shao, Wenhao
last_name: Shao
- first_name: Zhichen
full_name: Nian, Zhichen
last_name: Nian
- first_name: Hanjun
full_name: Yang, Hanjun
last_name: Yang
- first_name: Peigang
full_name: Chen, Peigang
last_name: Chen
- first_name: Brandon
full_name: Triplett, Brandon
last_name: Triplett
- first_name: Zhixu
full_name: Li, Zhixu
last_name: Li
- first_name: Pengfei
full_name: Wu, Pengfei
last_name: Wu
- first_name: Yuheng
full_name: Chen, Yuheng
last_name: Chen
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Karthik
full_name: Pagadala, Karthik
last_name: Pagadala
- first_name: Kyu Ri
full_name: Choi, Kyu Ri
last_name: Choi
- first_name: Colton B.
full_name: Fruhling, Colton B.
last_name: Fruhling
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Alexandra
full_name: Boltasseva, Alexandra
last_name: Boltasseva
- first_name: Brett M.
full_name: Savoie, Brett M.
last_name: Savoie
- first_name: Vladimir M.
full_name: Shalaev, Vladimir M.
last_name: Shalaev
- first_name: Letian
full_name: Dou, Letian
last_name: Dou
citation:
ama: Kim JH, Simon J, Shao W, et al. Hydrogen-Bonded Organic Framework Enables Phase-Pure
Layered Tin Perovskite Nanowires for Room-Temperature Lasing. Journal of the
American Chemical Society. Published online 2026:jacs.5c14431. doi:10.1021/jacs.5c14431
apa: Kim, J. H., Simon, J., Shao, W., Nian, Z., Yang, H., Chen, P., Triplett, B.,
Li, Z., Wu, P., Chen, Y., Farheen, H., Pagadala, K., Choi, K. R., Fruhling, C.
B., Förstner, J., Boltasseva, A., Savoie, B. M., Shalaev, V. M., & Dou, L.
(2026). Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite
Nanowires for Room-Temperature Lasing. Journal of the American Chemical Society,
jacs.5c14431. https://doi.org/10.1021/jacs.5c14431
bibtex: '@article{Kim_Simon_Shao_Nian_Yang_Chen_Triplett_Li_Wu_Chen_et al._2026,
title={Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite
Nanowires for Room-Temperature Lasing}, DOI={10.1021/jacs.5c14431},
journal={Journal of the American Chemical Society}, publisher={American Chemical
Society (ACS)}, author={Kim, Jeong Hui and Simon, Jeffrey and Shao, Wenhao and
Nian, Zhichen and Yang, Hanjun and Chen, Peigang and Triplett, Brandon and Li,
Zhixu and Wu, Pengfei and Chen, Yuheng and et al.}, year={2026}, pages={jacs.5c14431}
}'
chicago: Kim, Jeong Hui, Jeffrey Simon, Wenhao Shao, Zhichen Nian, Hanjun Yang,
Peigang Chen, Brandon Triplett, et al. “Hydrogen-Bonded Organic Framework Enables
Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing.” Journal
of the American Chemical Society, 2026, jacs.5c14431. https://doi.org/10.1021/jacs.5c14431.
ieee: 'J. H. Kim et al., “Hydrogen-Bonded Organic Framework Enables Phase-Pure
Layered Tin Perovskite Nanowires for Room-Temperature Lasing,” Journal of the
American Chemical Society, p. jacs.5c14431, 2026, doi: 10.1021/jacs.5c14431.'
mla: Kim, Jeong Hui, et al. “Hydrogen-Bonded Organic Framework Enables Phase-Pure
Layered Tin Perovskite Nanowires for Room-Temperature Lasing.” Journal of the
American Chemical Society, American Chemical Society (ACS), 2026, p. jacs.5c14431,
doi:10.1021/jacs.5c14431.
short: J.H. Kim, J. Simon, W. Shao, Z. Nian, H. Yang, P. Chen, B. Triplett, Z. Li,
P. Wu, Y. Chen, H. Farheen, K. Pagadala, K.R. Choi, C.B. Fruhling, J. Förstner,
A. Boltasseva, B.M. Savoie, V.M. Shalaev, L. Dou, Journal of the American Chemical
Society (2026) jacs.5c14431.
date_created: 2026-01-08T20:48:26Z
date_updated: 2026-01-08T20:54:59Z
ddc:
- '530'
department:
- _id: '61'
- _id: '623'
doi: 10.1021/jacs.5c14431
file:
- access_level: closed
content_type: application/pdf
creator: fossie
date_created: 2026-01-08T20:51:12Z
date_updated: 2026-01-08T20:51:12Z
file_id: '63533'
file_name: 2026-01 Jeong-Hui-Kim - JACS - Hydrogen-Bonded Organic Framework Enables
Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing (with
Purdue).pdf
file_size: 5453427
relation: main_file
success: 1
file_date_updated: 2026-01-08T20:51:12Z
has_accepted_license: '1'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
page: jacs.5c14431
publication: Journal of the American Chemical Society
publication_identifier:
issn:
- 0002-7863
- 1520-5126
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite
Nanowires for Room-Temperature Lasing
type: journal_article
user_id: '158'
year: '2026'
...
---
_id: '66744'
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Yuheng
full_name: Chen, Yuheng
last_name: Chen
- first_name: Peigang
full_name: Chen, Peigang
last_name: Chen
- first_name: Pranshu
full_name: Maan, Pranshu
last_name: Maan
- first_name: Samuel
full_name: Peana, Samuel
last_name: Peana
- first_name: Alexander
full_name: Senichev, Alexander
last_name: Senichev
- first_name: Vladimir M.
full_name: Shalaev, Vladimir M.
last_name: Shalaev
- first_name: Alexandra
full_name: Boltasseva, Alexandra
last_name: Boltasseva
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Alexander V.
full_name: Kildishev, Alexander V.
last_name: Kildishev
citation:
ama: Farheen H, Chen Y, Chen P, et al. Efficient Silicon Nitride Quantum Interconnect
for Intrinsic Silicon Nitride Single-Photon Emitters. IEEE Journal of Selected
Topics in Quantum Electronics. Published online 2026:1-12. doi:10.1109/jstqe.2026.3722063
apa: Farheen, H., Chen, Y., Chen, P., Maan, P., Peana, S., Senichev, A., Shalaev,
V. M., Boltasseva, A., Förstner, J., & Kildishev, A. V. (2026). Efficient
Silicon Nitride Quantum Interconnect for Intrinsic Silicon Nitride Single-Photon
Emitters. IEEE Journal of Selected Topics in Quantum Electronics, 1–12.
https://doi.org/10.1109/jstqe.2026.3722063
bibtex: '@article{Farheen_Chen_Chen_Maan_Peana_Senichev_Shalaev_Boltasseva_Förstner_Kildishev_2026,
title={Efficient Silicon Nitride Quantum Interconnect for Intrinsic Silicon Nitride
Single-Photon Emitters}, DOI={10.1109/jstqe.2026.3722063},
journal={IEEE Journal of Selected Topics in Quantum Electronics}, publisher={Institute
of Electrical and Electronics Engineers (IEEE)}, author={Farheen, Henna and Chen,
Yuheng and Chen, Peigang and Maan, Pranshu and Peana, Samuel and Senichev, Alexander
and Shalaev, Vladimir M. and Boltasseva, Alexandra and Förstner, Jens and Kildishev,
Alexander V.}, year={2026}, pages={1–12} }'
chicago: Farheen, Henna, Yuheng Chen, Peigang Chen, Pranshu Maan, Samuel Peana,
Alexander Senichev, Vladimir M. Shalaev, Alexandra Boltasseva, Jens Förstner,
and Alexander V. Kildishev. “Efficient Silicon Nitride Quantum Interconnect for
Intrinsic Silicon Nitride Single-Photon Emitters.” IEEE Journal of Selected
Topics in Quantum Electronics, 2026, 1–12. https://doi.org/10.1109/jstqe.2026.3722063.
ieee: 'H. Farheen et al., “Efficient Silicon Nitride Quantum Interconnect
for Intrinsic Silicon Nitride Single-Photon Emitters,” IEEE Journal of Selected
Topics in Quantum Electronics, pp. 1–12, 2026, doi: 10.1109/jstqe.2026.3722063.'
mla: Farheen, Henna, et al. “Efficient Silicon Nitride Quantum Interconnect for
Intrinsic Silicon Nitride Single-Photon Emitters.” IEEE Journal of Selected
Topics in Quantum Electronics, Institute of Electrical and Electronics Engineers
(IEEE), 2026, pp. 1–12, doi:10.1109/jstqe.2026.3722063.
short: H. Farheen, Y. Chen, P. Chen, P. Maan, S. Peana, A. Senichev, V.M. Shalaev,
A. Boltasseva, J. Förstner, A.V. Kildishev, IEEE Journal of Selected Topics in
Quantum Electronics (2026) 1–12.
date_created: 2026-08-19T11:37:05Z
date_updated: 2026-08-19T13:07:08Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '623'
doi: 10.1109/jstqe.2026.3722063
file:
- access_level: local
content_type: application/pdf
creator: fossie
date_created: 2026-08-19T13:04:15Z
date_updated: 2026-08-19T13:04:15Z
embargo: 2027-08-19
embargo_to: open_access
file_id: '66745'
file_name: 2026-08 Farheen - IEEE JSTQE - Efficient_Silicon_Nitride_Quantum_Interconnect_for_Intrinsic_Silicon_Nitride_Single-Photon_Emitters
(PREPRINT).pdf
file_size: 33382776
relation: main_file
file_date_updated: 2026-08-19T13:04:15Z
has_accepted_license: '1'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
page: 1-12
project:
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
publication: IEEE Journal of Selected Topics in Quantum Electronics
publication_identifier:
issn:
- 1077-260X
- 1558-4542
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: Efficient Silicon Nitride Quantum Interconnect for Intrinsic Silicon Nitride
Single-Photon Emitters
type: journal_article
user_id: '158'
year: '2026'
...
---
_id: '55989'
abstract:
- lang: eng
text: Phased arrays are vital in communication systems and have received significant
interest in the field of optoelectronics and photonics, enabling a wide range
of applications such as LiDAR, holography, wireless communication, etc. In this
work, we present a blazed grating antenna that is optimized to have upward radiation
efficiency as high as 80% with a compact footprint of 3.5 μm × 2 μm at an operational
wavelength of 1.55 μm. Our numerical investigations demonstrate that this antenna
in a 64 × 64 phased array configuration is capable of producing desired far-field
radiation patterns. Additionally, our antenna possesses a low side lobe level
of -9.7 dB and a negligible reflection efficiency of under 1%, making it an attractive
candidate for integrated optical phased arrays.
article_type: original
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Suraj
full_name: Joshi, Suraj
last_name: Joshi
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Farheen H, Joshi S, Scheytt JC, Myroshnychenko V, Förstner J. An efficient
compact blazed grating antenna for optical phased arrays. Journal of Physics:
Photonics. 2024;6:045010. doi:10.1088/2515-7647/ad6ed4'
apa: 'Farheen, H., Joshi, S., Scheytt, J. C., Myroshnychenko, V., & Förstner,
J. (2024). An efficient compact blazed grating antenna for optical phased arrays.
Journal of Physics: Photonics, 6, 045010. https://doi.org/10.1088/2515-7647/ad6ed4'
bibtex: '@article{Farheen_Joshi_Scheytt_Myroshnychenko_Förstner_2024, title={An
efficient compact blazed grating antenna for optical phased arrays}, volume={6},
DOI={10.1088/2515-7647/ad6ed4},
journal={Journal of Physics: Photonics}, publisher={IOP Publishing}, author={Farheen,
Henna and Joshi, Suraj and Scheytt, J. Christoph and Myroshnychenko, Viktor and
Förstner, Jens}, year={2024}, pages={045010} }'
chicago: 'Farheen, Henna, Suraj Joshi, J. Christoph Scheytt, Viktor Myroshnychenko,
and Jens Förstner. “An Efficient Compact Blazed Grating Antenna for Optical Phased
Arrays.” Journal of Physics: Photonics 6 (2024): 045010. https://doi.org/10.1088/2515-7647/ad6ed4.'
ieee: 'H. Farheen, S. Joshi, J. C. Scheytt, V. Myroshnychenko, and J. Förstner,
“An efficient compact blazed grating antenna for optical phased arrays,” Journal
of Physics: Photonics, vol. 6, p. 045010, 2024, doi: 10.1088/2515-7647/ad6ed4.'
mla: 'Farheen, Henna, et al. “An Efficient Compact Blazed Grating Antenna for Optical
Phased Arrays.” Journal of Physics: Photonics, vol. 6, IOP Publishing,
2024, p. 045010, doi:10.1088/2515-7647/ad6ed4.'
short: 'H. Farheen, S. Joshi, J.C. Scheytt, V. Myroshnychenko, J. Förstner, Journal
of Physics: Photonics 6 (2024) 045010.'
date_created: 2024-09-02T12:08:18Z
date_updated: 2024-09-02T12:23:55Z
ddc:
- '530'
department:
- _id: '61'
- _id: '429'
- _id: '58'
doi: 10.1088/2515-7647/ad6ed4
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2024-09-02T12:13:55Z
date_updated: 2024-09-02T12:13:55Z
file_id: '55990'
file_name: 2024-08 Farheen - JPhys Photonics - An efficient compact blazed grating
antenna for optical phased arrays (official version).pdf
file_size: 1492402
relation: main_file
file_date_updated: 2024-09-02T12:13:55Z
has_accepted_license: '1'
intvolume: ' 6'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
oa: '1'
page: '045010'
project:
- _id: '266'
grant_number: PROFILNRW-2020-067
name: 'PhoQC: PhoQC: Photonisches Quantencomputing'
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '167'
grant_number: '231447078'
name: 'TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle
eines photonischen Quantensystems (B06*)'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: 'Journal of Physics: Photonics'
publication_identifier:
issn:
- 2515-7647
publication_status: published
publisher: IOP Publishing
status: public
title: An efficient compact blazed grating antenna for optical phased arrays
type: journal_article
user_id: '158'
volume: 6
year: '2024'
...
---
_id: '50012'
abstract:
- lang: eng
text: Silicon photonics, in conjunction with complementary metal-oxide-semiconductor
(CMOS) fabrication, has greatly enhanced the development of integrated optical
phased arrays. This facilitates a dynamic control of light in a compact form factor
that enables the synthesis of arbitrary complex wavefronts in the infrared spectrum.
We numerically demonstrate a large-scale two-dimensional silicon-based optical
phased array (OPA) composed of nanoantennas with circular gratings that are balanced
in power and aligned in phase, required for producing elegant radiation patterns
in the far-field. For a wavelength of 1.55 μm, we optimize two antennas for the
OPA exhibiting an upward radiation efficiency as high as 90%, with almost 6.8%
of optical power concentrated in the field of view. Additionally, we believe that
the proposed OPAs can be easily fabricated and would have the ability to generate
complex holographic images, rendering them an attractive candidate for a wide
range of applications like LiDAR sensors, optical trapping, optogenetic stimulation,
and augmented-reality displays.
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Andreas
full_name: Strauch, Andreas
last_name: Strauch
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Farheen H, Strauch A, Scheytt JC, Myroshnychenko V, Förstner J. Optimized,
Highly Efficient Silicon Antennas for Optical Phased Arrays. Photonics and
Nanostructures - Fundamentals and Applications. 2023;58:101207. doi:10.1016/j.photonics.2023.101207
apa: Farheen, H., Strauch, A., Scheytt, J. C., Myroshnychenko, V., & Förstner,
J. (2023). Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays.
Photonics and Nanostructures - Fundamentals and Applications, 58,
101207. https://doi.org/10.1016/j.photonics.2023.101207
bibtex: '@article{Farheen_Strauch_Scheytt_Myroshnychenko_Förstner_2023, title={Optimized,
Highly Efficient Silicon Antennas for Optical Phased Arrays}, volume={58}, DOI={10.1016/j.photonics.2023.101207},
journal={Photonics and Nanostructures - Fundamentals and Applications}, publisher={Elsevier
BV}, author={Farheen, Henna and Strauch, Andreas and Scheytt, J. Christoph and
Myroshnychenko, Viktor and Förstner, Jens}, year={2023}, pages={101207} }'
chicago: 'Farheen, Henna, Andreas Strauch, J. Christoph Scheytt, Viktor Myroshnychenko,
and Jens Förstner. “Optimized, Highly Efficient Silicon Antennas for Optical Phased
Arrays.” Photonics and Nanostructures - Fundamentals and Applications 58
(2023): 101207. https://doi.org/10.1016/j.photonics.2023.101207.'
ieee: 'H. Farheen, A. Strauch, J. C. Scheytt, V. Myroshnychenko, and J. Förstner,
“Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays,” Photonics
and Nanostructures - Fundamentals and Applications, vol. 58, p. 101207, 2023,
doi: 10.1016/j.photonics.2023.101207.'
mla: Farheen, Henna, et al. “Optimized, Highly Efficient Silicon Antennas for Optical
Phased Arrays.” Photonics and Nanostructures - Fundamentals and Applications,
vol. 58, Elsevier BV, 2023, p. 101207, doi:10.1016/j.photonics.2023.101207.
short: H. Farheen, A. Strauch, J.C. Scheytt, V. Myroshnychenko, J. Förstner, Photonics
and Nanostructures - Fundamentals and Applications 58 (2023) 101207.
date_created: 2023-12-21T09:30:03Z
date_updated: 2024-07-22T07:44:33Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '58'
doi: 10.1016/j.photonics.2023.101207
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2023-12-21T09:34:17Z
date_updated: 2023-12-21T09:34:17Z
file_id: '50013'
file_name: 2ß23-12 Farheen - PNFA - Optimized, highly efficient silicon antennas
for optical phased arrays.pdf
file_size: 3339442
relation: main_file
file_date_updated: 2023-12-21T09:34:17Z
has_accepted_license: '1'
intvolume: ' 58'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
oa: '1'
page: '101207'
project:
- _id: '266'
grant_number: PROFILNRW-2020-067
name: 'PhoQC: PhoQC: Photonisches Quantencomputing'
- _id: '167'
grant_number: '231447078'
name: 'TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle
eines photonischen Quantensystems (B06*)'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Photonics and Nanostructures - Fundamentals and Applications
publication_identifier:
issn:
- 1569-4410
publication_status: published
publisher: Elsevier BV
related_material:
link:
- relation: research_data
url: https://doi.org/10.5281/zenodo.10044122
status: public
title: Optimized, Highly Efficient Silicon Antennas for Optical Phased Arrays
type: journal_article
user_id: '158'
volume: 58
year: '2023'
...
---
_id: '43052'
abstract:
- lang: eng
text: We demonstrate a large-scale two dimensional silicon-based optical phased
array (OPA) composed of nanoantennas with circular gratings that are balanced
in power and aligned in phase, required for producing desired radiation patterns
in the far-field. The OPAs are numerically optimized to have an upward efficiency
of up to 90%, targeting radiation concentration mainly in the field of view. We
envision that our OPAs have the ability of generating complex holographic images,
rendering them an attractive candidate for a wide range of applications like LiDAR
sensors, optical trapping, optogenetic stimulation and augmented-reality displays.
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Andreas
full_name: Strauch, Andreas
last_name: Strauch
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: https://orcid.org/0000-0002-5950-6618
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Farheen H, Strauch A, Scheytt JC, Myroshnychenko V, Förstner J. Optimized
silicon antennas for optical phased arrays. In: García-Blanco SM, Cheben P, eds.
Integrated Optics: Devices, Materials, and Technologies XXVII. SPIE; 2023:124241D.
doi:10.1117/12.2658716'
apa: 'Farheen, H., Strauch, A., Scheytt, J. C., Myroshnychenko, V., & Förstner,
J. (2023). Optimized silicon antennas for optical phased arrays. In S. M. García-Blanco
& P. Cheben (Eds.), Integrated Optics: Devices, Materials, and Technologies
XXVII (p. 124241D). SPIE. https://doi.org/10.1117/12.2658716'
bibtex: '@inproceedings{Farheen_Strauch_Scheytt_Myroshnychenko_Förstner_2023, title={Optimized
silicon antennas for optical phased arrays}, DOI={10.1117/12.2658716},
booktitle={Integrated Optics: Devices, Materials, and Technologies XXVII}, publisher={SPIE},
author={Farheen, Henna and Strauch, Andreas and Scheytt, J. Christoph and Myroshnychenko,
Viktor and Förstner, Jens}, editor={García-Blanco, Sonia M. and Cheben, Pavel},
year={2023}, pages={124241D} }'
chicago: 'Farheen, Henna, Andreas Strauch, J. Christoph Scheytt, Viktor Myroshnychenko,
and Jens Förstner. “Optimized Silicon Antennas for Optical Phased Arrays.” In
Integrated Optics: Devices, Materials, and Technologies XXVII, edited by
Sonia M. García-Blanco and Pavel Cheben, 124241D. SPIE, 2023. https://doi.org/10.1117/12.2658716.'
ieee: 'H. Farheen, A. Strauch, J. C. Scheytt, V. Myroshnychenko, and J. Förstner,
“Optimized silicon antennas for optical phased arrays,” in Integrated Optics:
Devices, Materials, and Technologies XXVII, 2023, p. 124241D, doi: 10.1117/12.2658716.'
mla: 'Farheen, Henna, et al. “Optimized Silicon Antennas for Optical Phased Arrays.”
Integrated Optics: Devices, Materials, and Technologies XXVII, edited by
Sonia M. García-Blanco and Pavel Cheben, SPIE, 2023, p. 124241D, doi:10.1117/12.2658716.'
short: 'H. Farheen, A. Strauch, J.C. Scheytt, V. Myroshnychenko, J. Förstner, in:
S.M. García-Blanco, P. Cheben (Eds.), Integrated Optics: Devices, Materials, and
Technologies XXVII, SPIE, 2023, p. 124241D.'
date_created: 2023-03-21T12:35:18Z
date_updated: 2024-07-22T07:44:46Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1117/12.2658716
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: request
content_type: application/pdf
creator: fossie
date_created: 2023-03-22T07:41:49Z
date_updated: 2023-03-22T20:53:11Z
file_id: '43055'
file_name: 2023-01 Poster Photonics West Henna OPA_A0.pdf
file_size: 1747396
relation: main_file
file_date_updated: 2023-03-22T20:53:11Z
has_accepted_license: '1'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
page: '124241D '
publication: 'Integrated Optics: Devices, Materials, and Technologies XXVII'
publication_status: published
publisher: SPIE
status: public
title: Optimized silicon antennas for optical phased arrays
type: conference
user_id: '158'
year: '2023'
...
---
_id: '50466'
abstract:
- lang: eng
text: A key challenge in designing efficient optical phased arrays is the lack of
a well-designed radiator. This work explores horn antennas numerically optimized
to target high upward radiation efficiency to be employed in silicon-based phased
arrays capable of producing elegant radiation patterns in the far-field.
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: S.
full_name: Joshi, S.
last_name: Joshi
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Farheen H, Joshi S, Scheytt JC, Myroshnychenko V, Förstner J. Increasing the
upward radiation efficiency of optical phased arrays using asymmetric silicon
horn antennas. In: 2023 IEEE Photonics Conference (IPC). IEEE; 2023. doi:10.1109/ipc57732.2023.10360519'
apa: Farheen, H., Joshi, S., Scheytt, J. C., Myroshnychenko, V., & Förstner,
J. (2023). Increasing the upward radiation efficiency of optical phased arrays
using asymmetric silicon horn antennas. 2023 IEEE Photonics Conference (IPC).
https://doi.org/10.1109/ipc57732.2023.10360519
bibtex: '@inproceedings{Farheen_Joshi_Scheytt_Myroshnychenko_Förstner_2023, title={Increasing
the upward radiation efficiency of optical phased arrays using asymmetric silicon
horn antennas}, DOI={10.1109/ipc57732.2023.10360519},
booktitle={2023 IEEE Photonics Conference (IPC)}, publisher={IEEE}, author={Farheen,
Henna and Joshi, S. and Scheytt, J. Christoph and Myroshnychenko, Viktor and Förstner,
Jens}, year={2023} }'
chicago: Farheen, Henna, S. Joshi, J. Christoph Scheytt, Viktor Myroshnychenko,
and Jens Förstner. “Increasing the Upward Radiation Efficiency of Optical Phased
Arrays Using Asymmetric Silicon Horn Antennas.” In 2023 IEEE Photonics Conference
(IPC). IEEE, 2023. https://doi.org/10.1109/ipc57732.2023.10360519.
ieee: 'H. Farheen, S. Joshi, J. C. Scheytt, V. Myroshnychenko, and J. Förstner,
“Increasing the upward radiation efficiency of optical phased arrays using asymmetric
silicon horn antennas,” 2023, doi: 10.1109/ipc57732.2023.10360519.'
mla: Farheen, Henna, et al. “Increasing the Upward Radiation Efficiency of Optical
Phased Arrays Using Asymmetric Silicon Horn Antennas.” 2023 IEEE Photonics
Conference (IPC), IEEE, 2023, doi:10.1109/ipc57732.2023.10360519.
short: 'H. Farheen, S. Joshi, J.C. Scheytt, V. Myroshnychenko, J. Förstner, in:
2023 IEEE Photonics Conference (IPC), IEEE, 2023.'
date_created: 2024-01-12T07:37:54Z
date_updated: 2024-07-22T07:48:53Z
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1109/ipc57732.2023.10360519
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
project:
- _id: '266'
grant_number: PROFILNRW-2020-067
name: 'PhoQC: PhoQC: Photonisches Quantencomputing'
- _id: '167'
grant_number: '231447078'
name: 'TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle
eines photonischen Quantensystems (B06*)'
- _id: '75'
grant_number: '231447078'
name: 'TRR 142 - C05: TRR 142 - Nichtlineare optische Oberflächen basierend auf
ZnO-plasmonischen Hybrid-Nanostrukturen (C05)'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: 2023 IEEE Photonics Conference (IPC)
publication_status: published
publisher: IEEE
status: public
title: Increasing the upward radiation efficiency of optical phased arrays using asymmetric
silicon horn antennas
type: conference
user_id: '158'
year: '2023'
...
---
_id: '43051'
abstract:
- lang: eng
text: We demonstrate the numerical and experimental realization of optimized optical
traveling-wave antennas made of low-loss dielectric materials. These antennas
exhibit highly directive radiation patterns and our studies reveal that this nature
comes from two dominant guided TE modes excited in the waveguide-like director
of the antenna, in addition to the leaky modes. The optimized antennas possess
a broadband nature and have a nearunity radiation efficiency at an operational
wavelength of 780 nm. Compared to the previously studied plasmonic antennas for
photon emission, our all-dielectric approach demonstrates a new class of highly
directional, low-loss, and broadband optical antennas.
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Lok-Yee
full_name: Yan, Lok-Yee
last_name: Yan
- first_name: Till
full_name: Leuteritz, Till
last_name: Leuteritz
- first_name: Siqi
full_name: Qiao, Siqi
last_name: Qiao
- first_name: Florian
full_name: Spreyer, Florian
last_name: Spreyer
- first_name: Christian
full_name: Schlickriede, Christian
last_name: Schlickriede
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Christof
full_name: Eigner, Christof
last_name: Eigner
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Stefan
full_name: Linden, Stefan
last_name: Linden
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Farheen H, Yan L-Y, Leuteritz T, et al. Tailoring the directive nature of
optical waveguide antennas. In: García-Blanco SM, Cheben P, eds. Integrated
Optics: Devices, Materials, and Technologies XXVII. SPIE; 2023:124241E. doi:10.1117/12.2658921'
apa: 'Farheen, H., Yan, L.-Y., Leuteritz, T., Qiao, S., Spreyer, F., Schlickriede,
C., Quiring, V., Eigner, C., Silberhorn, C., Zentgraf, T., Linden, S., Myroshnychenko,
V., & Förstner, J. (2023). Tailoring the directive nature of optical waveguide
antennas. In S. M. García-Blanco & P. Cheben (Eds.), Integrated Optics:
Devices, Materials, and Technologies XXVII (p. 124241E). SPIE. https://doi.org/10.1117/12.2658921'
bibtex: '@inproceedings{Farheen_Yan_Leuteritz_Qiao_Spreyer_Schlickriede_Quiring_Eigner_Silberhorn_Zentgraf_et
al._2023, title={Tailoring the directive nature of optical waveguide antennas},
DOI={10.1117/12.2658921}, booktitle={Integrated
Optics: Devices, Materials, and Technologies XXVII}, publisher={SPIE}, author={Farheen,
Henna and Yan, Lok-Yee and Leuteritz, Till and Qiao, Siqi and Spreyer, Florian
and Schlickriede, Christian and Quiring, Viktor and Eigner, Christof and Silberhorn,
Christine and Zentgraf, Thomas and et al.}, editor={García-Blanco, Sonia M. and
Cheben, Pavel}, year={2023}, pages={124241E} }'
chicago: 'Farheen, Henna, Lok-Yee Yan, Till Leuteritz, Siqi Qiao, Florian Spreyer,
Christian Schlickriede, Viktor Quiring, et al. “Tailoring the Directive Nature
of Optical Waveguide Antennas.” In Integrated Optics: Devices, Materials, and
Technologies XXVII, edited by Sonia M. García-Blanco and Pavel Cheben, 124241E.
SPIE, 2023. https://doi.org/10.1117/12.2658921.'
ieee: 'H. Farheen et al., “Tailoring the directive nature of optical waveguide
antennas,” in Integrated Optics: Devices, Materials, and Technologies XXVII,
2023, p. 124241E, doi: 10.1117/12.2658921.'
mla: 'Farheen, Henna, et al. “Tailoring the Directive Nature of Optical Waveguide
Antennas.” Integrated Optics: Devices, Materials, and Technologies XXVII,
edited by Sonia M. García-Blanco and Pavel Cheben, SPIE, 2023, p. 124241E, doi:10.1117/12.2658921.'
short: 'H. Farheen, L.-Y. Yan, T. Leuteritz, S. Qiao, F. Spreyer, C. Schlickriede,
V. Quiring, C. Eigner, C. Silberhorn, T. Zentgraf, S. Linden, V. Myroshnychenko,
J. Förstner, in: S.M. García-Blanco, P. Cheben (Eds.), Integrated Optics: Devices,
Materials, and Technologies XXVII, SPIE, 2023, p. 124241E.'
date_created: 2023-03-21T12:28:31Z
date_updated: 2025-05-23T05:57:14Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '623'
doi: 10.1117/12.2658921
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: local
content_type: application/pdf
creator: fossie
date_created: 2023-03-22T09:25:57Z
date_updated: 2023-03-22T09:25:57Z
file_id: '43062'
file_name: 2023-01 Poster Photonics West Henna OWA_A0.pdf
file_size: 1426599
relation: main_file
file_date_updated: 2023-03-22T09:25:57Z
has_accepted_license: '1'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
page: 124241E
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '65'
grant_number: '231447078'
name: 'TRR 142 - A08: TRR 142 - Nichtlineare Kopplung von Zwischenschicht-Exzitonen
in van der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten
(A08)'
publication: 'Integrated Optics: Devices, Materials, and Technologies XXVII'
publication_status: published
publisher: SPIE
status: public
title: Tailoring the directive nature of optical waveguide antennas
type: conference
user_id: '30525'
year: '2023'
...
---
_id: '28413'
abstract:
- lang: eng
text: Optical traveling wave antennas offer unique opportunities to control and
selectively guide light into a specific direction, which renders them excellent
candidates for optical communication and sensing. These applications require state-of-the-art
engineering to reach optimized functionalities such as high directivity and radiation
efficiency, low sidelobe levels, broadband and tunable capabilities, and compact
design. In this work, we report on the numerical optimization of the directivity
of optical traveling wave antennas made from low-loss dielectric materials using
full-wave numerical simulations in conjunction with the particle swarm optimization
algorithm. The antennas are composed of a reflector and a director deposited on
a glass substrate, and an emitter placed in the feed gap between them serves as
an internal source of excitation. In particular, we analyze antennas with rectangular-
and horn-shaped directors made of either hafnium dioxide or silicon. The optimized
antennas produce highly directional emissions due to the presence of two dominant
guided TE modes in the director in addition to leaky modes. These guided modes
dominate the far-field emission pattern and govern the direction of the main lobe
emission, which predominately originates from the end facet of the director. Our
work also provides a comprehensive analysis of the modes, radiation patterns,
parametric influences, and bandwidths of the antennas, which highlights their
robust nature.
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Till
full_name: Leuteritz, Till
last_name: Leuteritz
- first_name: Stefan
full_name: Linden, Stefan
last_name: Linden
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Farheen H, Leuteritz T, Linden S, Myroshnychenko V, Förstner J. Optimization
of optical waveguide antennas for directive emission of light. Journal of the
Optical Society of America B. 2022;39(1):83. doi:10.1364/josab.438514
apa: Farheen, H., Leuteritz, T., Linden, S., Myroshnychenko, V., & Förstner,
J. (2022). Optimization of optical waveguide antennas for directive emission of
light. Journal of the Optical Society of America B, 39(1), 83. https://doi.org/10.1364/josab.438514
bibtex: '@article{Farheen_Leuteritz_Linden_Myroshnychenko_Förstner_2022, title={Optimization
of optical waveguide antennas for directive emission of light}, volume={39}, DOI={10.1364/josab.438514}, number={1},
journal={Journal of the Optical Society of America B}, author={Farheen, Henna
and Leuteritz, Till and Linden, Stefan and Myroshnychenko, Viktor and Förstner,
Jens}, year={2022}, pages={83} }'
chicago: 'Farheen, Henna, Till Leuteritz, Stefan Linden, Viktor Myroshnychenko,
and Jens Förstner. “Optimization of Optical Waveguide Antennas for Directive Emission
of Light.” Journal of the Optical Society of America B 39, no. 1 (2022):
83. https://doi.org/10.1364/josab.438514.'
ieee: 'H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, and J. Förstner,
“Optimization of optical waveguide antennas for directive emission of light,”
Journal of the Optical Society of America B, vol. 39, no. 1, p. 83, 2022,
doi: 10.1364/josab.438514.'
mla: Farheen, Henna, et al. “Optimization of Optical Waveguide Antennas for Directive
Emission of Light.” Journal of the Optical Society of America B, vol. 39,
no. 1, 2022, p. 83, doi:10.1364/josab.438514.
short: H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, J. Förstner, Journal
of the Optical Society of America B 39 (2022) 83.
date_created: 2021-12-08T07:14:39Z
date_updated: 2024-07-22T07:45:12Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1364/josab.438514
file:
- access_level: local
content_type: application/pdf
creator: fossie
date_created: 2021-12-08T08:26:57Z
date_updated: 2021-12-08T08:26:57Z
embargo: 2022-12-08
embargo_to: open_access
file_id: '28417'
file_name: 2021-12 Farheen - JOSA B - Optimization of optical nanoantennas.pdf
file_size: 14029741
relation: main_file
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2021-12-08T08:29:49Z
date_updated: 2021-12-08T08:29:49Z
file_id: '28418'
file_name: 2021-12 Farheen - JOSA B - Optimization of optical nanoantennas SUPPLEMENTARY
MATERIAL.pdf
file_size: 655495
relation: supplementary_material
file_date_updated: 2021-12-08T08:29:49Z
has_accepted_license: '1'
intvolume: ' 39'
issue: '1'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
oa: '1'
page: '83'
project:
- _id: '53'
grant_number: '231447078'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '75'
grant_number: '231447078'
name: TRR 142 - Subproject C5
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Journal of the Optical Society of America B
publication_identifier:
issn:
- 0740-3224
- 1520-8540
publication_status: published
status: public
title: Optimization of optical waveguide antennas for directive emission of light
type: journal_article
user_id: '158'
volume: 39
year: '2022'
...
---
_id: '31329'
abstract:
- lang: eng
text: Highly directive antennas with the ability of shaping radiation patterns in
desired directions are essential for efficient on-chip optical communication with
reduced cross talk. In this paper, we design and optimize three distinct broadband
traveling-wave tantalum pentoxide antennas exhibiting highly directional characteristics.
Our antennas contain a director and reflector deposited on a glass substrate,
which are excited by a dipole emitter placed in the feed gap between the two elements.
Full-wave simulations in conjunction with global optimization provide structures
with an enhanced linear directivity as high as 119 radiating in the substrate.
The high directivity is a result of the interplay between two dominant TE modes
and the leaky modes present in the antenna director. Furthermore, these low-loss
dielectric antennas exhibit a near-unity radiation efficiency at the operational
wavelength of 780 nm and maintain a broad bandwidth. Our numerical results are
in good agreement with experimental measurements from the optimized antennas fabricated
using a two-step electron-beam lithography, revealing the highly directive nature
of our structures. We envision that our antenna designs can be conveniently adapted
to other dielectric materials and prove instrumental for inter-chip optical communications
and other on-chip applications.
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Lok-Yee
full_name: Yan, Lok-Yee
last_name: Yan
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Stefan
full_name: Linden, Stefan
last_name: Linden
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
citation:
ama: Farheen H, Yan L-Y, Quiring V, et al. Broadband optical Ta2O5 antennas for
directional emission of light. Optics Express. 2022;30(11):19288. doi:10.1364/oe.455815
apa: Farheen, H., Yan, L.-Y., Quiring, V., Eigner, C., Zentgraf, T., Linden, S.,
Förstner, J., & Myroshnychenko, V. (2022). Broadband optical Ta2O5 antennas
for directional emission of light. Optics Express, 30(11), 19288.
https://doi.org/10.1364/oe.455815
bibtex: '@article{Farheen_Yan_Quiring_Eigner_Zentgraf_Linden_Förstner_Myroshnychenko_2022,
title={Broadband optical Ta2O5 antennas for directional emission of light}, volume={30},
DOI={10.1364/oe.455815}, number={11},
journal={Optics Express}, publisher={Optica Publishing Group}, author={Farheen,
Henna and Yan, Lok-Yee and Quiring, Viktor and Eigner, Christof and Zentgraf,
Thomas and Linden, Stefan and Förstner, Jens and Myroshnychenko, Viktor}, year={2022},
pages={19288} }'
chicago: 'Farheen, Henna, Lok-Yee Yan, Viktor Quiring, Christof Eigner, Thomas Zentgraf,
Stefan Linden, Jens Förstner, and Viktor Myroshnychenko. “Broadband Optical Ta2O5
Antennas for Directional Emission of Light.” Optics Express 30, no. 11
(2022): 19288. https://doi.org/10.1364/oe.455815.'
ieee: 'H. Farheen et al., “Broadband optical Ta2O5 antennas for directional
emission of light,” Optics Express, vol. 30, no. 11, p. 19288, 2022, doi:
10.1364/oe.455815.'
mla: Farheen, Henna, et al. “Broadband Optical Ta2O5 Antennas for Directional Emission
of Light.” Optics Express, vol. 30, no. 11, Optica Publishing Group, 2022,
p. 19288, doi:10.1364/oe.455815.
short: H. Farheen, L.-Y. Yan, V. Quiring, C. Eigner, T. Zentgraf, S. Linden, J.
Förstner, V. Myroshnychenko, Optics Express 30 (2022) 19288.
date_created: 2022-05-18T16:39:17Z
date_updated: 2024-07-22T07:44:58Z
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1364/oe.455815
intvolume: ' 30'
issue: '11'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
page: '19288'
project:
- _id: '75'
grant_number: '231447078'
name: 'TRR 142 - C5: TRR 142 - Subproject C5'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Broadband optical Ta2O5 antennas for directional emission of light
type: journal_article
user_id: '158'
volume: 30
year: '2022'
...
---
_id: '21821'
abstract:
- lang: eng
text: We present a combined experimental and numerical study of the far-field emission
properties of optical travelling wave antennas made from low-loss dielectric materials.
The antennas considered here are composed of two simple building blocks, a director
and a reflector, deposited on a glass substrate. Colloidal quantum dots placed
in the feed gap between the two elements serve as internal light source. The emission
profile of the antenna is mainly formed by the director while the reflector suppresses
backward emission. Systematic studies of the director dimensions as well as variation
of antenna material show that the effective refractive index of the director primarily
governs the far-field emission pattern. Below cut off, i.e., if the director’s
effective refractive index is smaller than the refractive index of the substrate,
the main lobe results from leaky wave emission along the director. In contrast,
if the director supports a guided mode, the emission predominately originates
from the end facet of the director.
article_number: '14694'
author:
- first_name: T.
full_name: Leuteritz, T.
last_name: Leuteritz
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: S.
full_name: Qiao, S.
last_name: Qiao
- first_name: F.
full_name: Spreyer, F.
last_name: Spreyer
- first_name: Christian
full_name: Schlickriede, Christian
id: '59792'
last_name: Schlickriede
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: S.
full_name: Linden, S.
last_name: Linden
citation:
ama: Leuteritz T, Farheen H, Qiao S, et al. Dielectric travelling wave antennas
for directional light emission. Optics Express. 2021;29(10). doi:10.1364/oe.422984
apa: Leuteritz, T., Farheen, H., Qiao, S., Spreyer, F., Schlickriede, C., Zentgraf,
T., Myroshnychenko, V., Förstner, J., & Linden, S. (2021). Dielectric travelling
wave antennas for directional light emission. Optics Express, 29(10),
Article 14694. https://doi.org/10.1364/oe.422984
bibtex: '@article{Leuteritz_Farheen_Qiao_Spreyer_Schlickriede_Zentgraf_Myroshnychenko_Förstner_Linden_2021,
title={Dielectric travelling wave antennas for directional light emission}, volume={29},
DOI={10.1364/oe.422984}, number={1014694},
journal={Optics Express}, author={Leuteritz, T. and Farheen, Henna and Qiao, S.
and Spreyer, F. and Schlickriede, Christian and Zentgraf, Thomas and Myroshnychenko,
Viktor and Förstner, Jens and Linden, S.}, year={2021} }'
chicago: Leuteritz, T., Henna Farheen, S. Qiao, F. Spreyer, Christian Schlickriede,
Thomas Zentgraf, Viktor Myroshnychenko, Jens Förstner, and S. Linden. “Dielectric
Travelling Wave Antennas for Directional Light Emission.” Optics Express
29, no. 10 (2021). https://doi.org/10.1364/oe.422984.
ieee: 'T. Leuteritz et al., “Dielectric travelling wave antennas for directional
light emission,” Optics Express, vol. 29, no. 10, Art. no. 14694, 2021,
doi: 10.1364/oe.422984.'
mla: Leuteritz, T., et al. “Dielectric Travelling Wave Antennas for Directional
Light Emission.” Optics Express, vol. 29, no. 10, 14694, 2021, doi:10.1364/oe.422984.
short: T. Leuteritz, H. Farheen, S. Qiao, F. Spreyer, C. Schlickriede, T. Zentgraf,
V. Myroshnychenko, J. Förstner, S. Linden, Optics Express 29 (2021).
date_created: 2021-04-29T06:56:40Z
date_updated: 2024-07-22T07:45:22Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '15'
- _id: '289'
doi: 10.1364/oe.422984
file:
- access_level: closed
content_type: application/pdf
creator: fossie
date_created: 2021-04-29T06:59:39Z
date_updated: 2021-04-29T06:59:39Z
file_id: '21822'
file_name: 2021-04 Leuteritz - Optics Express - Dielectric travelling wave antennas.pdf
file_size: 7464073
relation: main_file
success: 1
file_date_updated: 2021-04-29T06:59:39Z
has_accepted_license: '1'
intvolume: ' 29'
issue: '10'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
project:
- _id: '53'
grant_number: '231447078'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '75'
grant_number: '231447078'
name: TRR 142 - Subproject C5
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
status: public
title: Dielectric travelling wave antennas for directional light emission
type: journal_article
user_id: '158'
volume: 29
year: '2021'
...
---
_id: '680'
author:
- first_name: Manuel
full_name: Peter, Manuel
last_name: Peter
- first_name: Andre
full_name: Hildebrandt, Andre
last_name: Hildebrandt
- first_name: Christian
full_name: Schlickriede, Christian
id: '59792'
last_name: Schlickriede
- first_name: Kimia
full_name: Gharib, Kimia
last_name: Gharib
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Stefan
full_name: Linden, Stefan
last_name: Linden
citation:
ama: Peter M, Hildebrandt A, Schlickriede C, et al. Directional Emission from Dielectric
Leaky-Wave Nanoantennas. Nano Letters. 2017;17(7):4178-4183. doi:10.1021/acs.nanolett.7b00966
apa: Peter, M., Hildebrandt, A., Schlickriede, C., Gharib, K., Zentgraf, T., Förstner,
J., & Linden, S. (2017). Directional Emission from Dielectric Leaky-Wave Nanoantennas.
Nano Letters, 17(7), 4178–4183. https://doi.org/10.1021/acs.nanolett.7b00966
bibtex: '@article{Peter_Hildebrandt_Schlickriede_Gharib_Zentgraf_Förstner_Linden_2017,
title={Directional Emission from Dielectric Leaky-Wave Nanoantennas}, volume={17},
DOI={10.1021/acs.nanolett.7b00966},
number={7}, journal={Nano Letters}, publisher={American Chemical Society (ACS)},
author={Peter, Manuel and Hildebrandt, Andre and Schlickriede, Christian and Gharib,
Kimia and Zentgraf, Thomas and Förstner, Jens and Linden, Stefan}, year={2017},
pages={4178–4183} }'
chicago: 'Peter, Manuel, Andre Hildebrandt, Christian Schlickriede, Kimia Gharib,
Thomas Zentgraf, Jens Förstner, and Stefan Linden. “Directional Emission from
Dielectric Leaky-Wave Nanoantennas.” Nano Letters 17, no. 7 (2017): 4178–83.
https://doi.org/10.1021/acs.nanolett.7b00966.'
ieee: M. Peter et al., “Directional Emission from Dielectric Leaky-Wave Nanoantennas,”
Nano Letters, vol. 17, no. 7, pp. 4178–4183, 2017.
mla: Peter, Manuel, et al. “Directional Emission from Dielectric Leaky-Wave Nanoantennas.”
Nano Letters, vol. 17, no. 7, American Chemical Society (ACS), 2017, pp.
4178–83, doi:10.1021/acs.nanolett.7b00966.
short: M. Peter, A. Hildebrandt, C. Schlickriede, K. Gharib, T. Zentgraf, J. Förstner,
S. Linden, Nano Letters 17 (2017) 4178–4183.
date_created: 2017-11-13T07:36:01Z
date_updated: 2022-01-06T07:03:20Z
ddc:
- '530'
department:
- _id: '61'
- _id: '289'
doi: 10.1021/acs.nanolett.7b00966
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2018-08-16T08:07:31Z
date_updated: 2018-08-21T10:41:58Z
file_id: '3917'
file_name: 2017-08 Peter - Nano Letters - Directional Emission from Dielectric Leaky-Wave
Antennas.pdf
file_size: 3398275
relation: main_file
file_date_updated: 2018-08-21T10:41:58Z
has_accepted_license: '1'
intvolume: ' 17'
issue: '7'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
oa: '1'
page: 4178-4183
project:
- _id: '53'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '74'
name: TRR 142 - Subproject C4
publication: Nano Letters
publication_identifier:
issn:
- 1530-6984
- 1530-6992
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Directional Emission from Dielectric Leaky-Wave Nanoantennas
type: journal_article
urn: '6808'
user_id: '158'
volume: 17
year: '2017'
...
---
_id: '35'
author:
- first_name: Heiko
full_name: Linnenbank, Heiko
last_name: Linnenbank
- first_name: Yevgen
full_name: Grynko, Yevgen
id: '26059'
last_name: Grynko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Stefan
full_name: Linden, Stefan
last_name: Linden
citation:
ama: 'Linnenbank H, Grynko Y, Förstner J, Linden S. Second harmonic generation spectroscopy
on hybrid plasmonic/dielectric nanoantennas. Light: Science & Applications.
2016;5(1):e16013. doi:10.1038/lsa.2016.13'
apa: 'Linnenbank, H., Grynko, Y., Förstner, J., & Linden, S. (2016). Second
harmonic generation spectroscopy on hybrid plasmonic/dielectric nanoantennas.
Light: Science & Applications, 5(1), e16013. https://doi.org/10.1038/lsa.2016.13'
bibtex: '@article{Linnenbank_Grynko_Förstner_Linden_2016, title={Second harmonic
generation spectroscopy on hybrid plasmonic/dielectric nanoantennas}, volume={5},
DOI={10.1038/lsa.2016.13}, number={1},
journal={Light: Science & Applications}, publisher={Springer Nature}, author={Linnenbank,
Heiko and Grynko, Yevgen and Förstner, Jens and Linden, Stefan}, year={2016},
pages={e16013} }'
chicago: 'Linnenbank, Heiko, Yevgen Grynko, Jens Förstner, and Stefan Linden. “Second
Harmonic Generation Spectroscopy on Hybrid Plasmonic/Dielectric Nanoantennas.”
Light: Science & Applications 5, no. 1 (2016): e16013. https://doi.org/10.1038/lsa.2016.13.'
ieee: 'H. Linnenbank, Y. Grynko, J. Förstner, and S. Linden, “Second harmonic generation
spectroscopy on hybrid plasmonic/dielectric nanoantennas,” Light: Science &
Applications, vol. 5, no. 1, p. e16013, 2016.'
mla: 'Linnenbank, Heiko, et al. “Second Harmonic Generation Spectroscopy on Hybrid
Plasmonic/Dielectric Nanoantennas.” Light: Science & Applications,
vol. 5, no. 1, Springer Nature, 2016, p. e16013, doi:10.1038/lsa.2016.13.'
short: 'H. Linnenbank, Y. Grynko, J. Förstner, S. Linden, Light: Science & Applications
5 (2016) e16013.'
date_created: 2017-07-26T15:26:04Z
date_updated: 2022-01-06T06:59:19Z
ddc:
- '530'
department:
- _id: '61'
doi: 10.1038/lsa.2016.13
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2018-08-16T08:13:40Z
date_updated: 2018-08-21T10:43:10Z
file_id: '3918'
file_name: 2016-01 Linnenbank - Light Science and Applications (published version).pdf
file_size: 1442154
relation: main_file
file_date_updated: 2018-08-21T10:43:10Z
has_accepted_license: '1'
intvolume: ' 5'
issue: '1'
keyword:
- tet_topic_opticalantenna
- tet_topic_shg
language:
- iso: eng
oa: '1'
page: e16013
publication: 'Light: Science & Applications'
publication_identifier:
issn:
- 2047-7538
publication_status: published
publisher: Springer Nature
status: public
title: Second harmonic generation spectroscopy on hybrid plasmonic/dielectric nanoantennas
type: journal_article
urn: '352'
user_id: '158'
volume: 5
year: '2016'
...
---
_id: '3939'
abstract:
- lang: eng
text: "Optical and infrared antennas provide a promising way to couple photons in
and out of nanoscale structures. As\r\ncounterpart to conventional radio antennas,
they are able to increase optical felds in sub-wavelength volumes,\r\nto enhance
excitation and emission of quantum emitters or to direct light, radiated by quantum
emitters. The\r\ndirected emission of these antennas has been mainly pursued by
surface plasmon based devices, e.g. Yagi-Uda\r\nlike antennas, which are rather
complicated due to the coupling of several metallic particles. Also, like all
metallic\r\nstructures in optical or infrared regime, these devices are very sensitive
to fabrication tolerances and are affected\r\nby strong losses. It has been shown
recently, that such directed emission can be accomplished by dielectric\r\nmaterials
as well.\r\nIn this paper we present an optimization of nanoscopic antennas in
the near infrared regime starting from a\r\nmetallic Yagi-Uda structure. The optimization
is done via a particle-swarm algorithm, using full time domain\r\nfinite integration
simulations to obtain the characteristics of the investigated structure, also
taking into account\r\nsubstrates. Furthermore we present a dielectric antenna,
which performs even better, due to the lack of losses\r\nby an appropriate choice
of the dielectric material. These antennas are robust concerning fabrication tolerances\r\nand
can be realized with different materials for both the antenna and the substrate,
without using high index\r\nmaterials."
author:
- first_name: Andre
full_name: Hildebrandt, Andre
last_name: Hildebrandt
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Hildebrandt A, Reichelt M, Meier T, Förstner J. Engineering plasmonic and
dielectric directional nanoantennas. In: Betz M, Elezzabi AY, Song J-J, Tsen K-T,
eds. Ultrafast Phenomena and Nanophotonics XVIII. Vol 8984. SPIE Proceedings.
SPIE; 2014:89841G-8941G - 6. doi:10.1117/12.2036588'
apa: Hildebrandt, A., Reichelt, M., Meier, T., & Förstner, J. (2014). Engineering
plasmonic and dielectric directional nanoantennas. In M. Betz, A. Y. Elezzabi,
J.-J. Song, & K.-T. Tsen (Eds.), Ultrafast Phenomena and Nanophotonics
XVIII (Vol. 8984, pp. 89841G-8941G – 6). SPIE. https://doi.org/10.1117/12.2036588
bibtex: '@inproceedings{Hildebrandt_Reichelt_Meier_Förstner_2014, series={SPIE Proceedings},
title={Engineering plasmonic and dielectric directional nanoantennas}, volume={8984},
DOI={10.1117/12.2036588}, booktitle={Ultrafast
Phenomena and Nanophotonics XVIII}, publisher={SPIE}, author={Hildebrandt, Andre
and Reichelt, Matthias and Meier, Torsten and Förstner, Jens}, editor={Betz, Markus
and Elezzabi, Abdulhakem Y. and Song, Jin-Joo and Tsen, Kong-Thon}, year={2014},
pages={89841G-8941G–6}, collection={SPIE Proceedings} }'
chicago: Hildebrandt, Andre, Matthias Reichelt, Torsten Meier, and Jens Förstner.
“Engineering Plasmonic and Dielectric Directional Nanoantennas.” In Ultrafast
Phenomena and Nanophotonics XVIII, edited by Markus Betz, Abdulhakem Y. Elezzabi,
Jin-Joo Song, and Kong-Thon Tsen, 8984:89841G-8941G – 6. SPIE Proceedings. SPIE,
2014. https://doi.org/10.1117/12.2036588.
ieee: 'A. Hildebrandt, M. Reichelt, T. Meier, and J. Förstner, “Engineering plasmonic
and dielectric directional nanoantennas,” in Ultrafast Phenomena and Nanophotonics
XVIII, 2014, vol. 8984, pp. 89841G-8941G–6, doi: 10.1117/12.2036588.'
mla: Hildebrandt, Andre, et al. “Engineering Plasmonic and Dielectric Directional
Nanoantennas.” Ultrafast Phenomena and Nanophotonics XVIII, edited by Markus
Betz et al., vol. 8984, SPIE, 2014, pp. 89841G-8941G – 6, doi:10.1117/12.2036588.
short: 'A. Hildebrandt, M. Reichelt, T. Meier, J. Förstner, in: M. Betz, A.Y. Elezzabi,
J.-J. Song, K.-T. Tsen (Eds.), Ultrafast Phenomena and Nanophotonics XVIII, SPIE,
2014, pp. 89841G-8941G–6.'
date_created: 2018-08-20T10:04:52Z
date_updated: 2023-04-16T22:09:25Z
ddc:
- '530'
department:
- _id: '61'
- _id: '15'
- _id: '293'
- _id: '230'
- _id: '170'
doi: 10.1117/12.2036588
editor:
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
- first_name: Abdulhakem Y.
full_name: Elezzabi, Abdulhakem Y.
last_name: Elezzabi
- first_name: Jin-Joo
full_name: Song, Jin-Joo
last_name: Song
- first_name: Kong-Thon
full_name: Tsen, Kong-Thon
last_name: Tsen
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-20T10:10:25Z
date_updated: 2018-08-20T10:10:25Z
file_id: '3940'
file_name: 2014 Hildebrandt,Reichelt,Meier,Förstner_Engineering plasmonic and dielectric
directional nanoantennas_SPIE OPTO.pdf
file_size: 1744539
relation: main_file
success: 1
file_date_updated: 2018-08-20T10:10:25Z
has_accepted_license: '1'
intvolume: ' 8984'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
page: 89841G-8941G-6
publication: Ultrafast Phenomena and Nanophotonics XVIII
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: Engineering plasmonic and dielectric directional nanoantennas
type: conference
user_id: '49063'
volume: 8984
year: '2014'
...