Toward On-Chip Nascent All-van-der-Waals Polarization Optical Elements for Nanoscale Photonic Applications.
6 affiliations
- 1Institute for Functional Intelligent Materials National University of Singapore Singapore.
- 2Department of Materials Science and Engineering National University of Singapore Singapore.
- 3Laboratory of Advanced Functional Materials Yerevan State University Yerevan Armenia.
- 4Department of Inorganic Chemistry University of Chemistry and Technology Prague Prague Czech Republic.
- 5School of Physics and Astronomy University of Southampton Southampton UK.
- 6Department of Physics National University of Singapore Singapore.
Abstract
The integration of polarization-control elements into nanoscale photonic circuits remains a central challenge for modern on-chip optical technologies, which call for continuous miniaturization. Van der Waals (vdW) crystals provide a versatile platform for their creation because of strong optical anisotropy, low loss accompanied by high refractive indices, and atomically precise heterostructure assembly capabilities. In this work, we present an approach towards the creation of all-vdW on-chip birefringent polarization-conversion elements operating in the near-infrared (NIR) spectral region, realized by uniquely twisted ReSe2/α-MoO3 heterostructures placed on a Si/SiO2 platform. Our proof-of-principle stacks demonstrate up to 64.5 % average degree of circular polarization (DoCP) quantitatively reproduced by finite-difference time-domain (FDTD) simulations. The latter reveals critical roles of layer thickness, twist angle, and Fabry-Perot interference effects in the determination of polarization conversion efficiency, which yields DoCP values close to unity for a layer thickness of about twice that of zero-order quarter-wave plate conditions of a free-standing slabs. Our findings establish a practical route toward fully integrated all-vdW polarization optical elements, providing a foundation for nanoscale photonic architectures entirely based on layered materials.
Versions
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BibTeX
@article{litvinov2026toward,
title = {{Toward On-Chip Nascent All-van-der-Waals Polarization Optical Elements for Nanoscale Photonic Applications.}},
author = {Dmitrii Litvinov and Ilia Begichev and Christoph Reuter and Changyi Chen and Iakov Reznikov and Maksim Sargsyan and Sergey Y Grebenchuk and Zdeněk Sofer and Makars Šiškins and Kostya S Novoselov and Alexey I Berdyugin and Maciej Koperski and Davit A Ghazaryan},
journal = {Nanophotonics (Berlin, Germany)},
year = {2026},
month = oct,
doi = {10.1002/nap2.70327},
url = {https://europepmc.org/article/MED/42926975},
note = {CC BY},
}
RIS
TY - JOUR
TI - Toward On-Chip Nascent All-van-der-Waals Polarization Optical Elements for Nanoscale Photonic Applications.
AU - Dmitrii Litvinov
AU - Ilia Begichev
AU - Christoph Reuter
AU - Changyi Chen
AU - Iakov Reznikov
AU - Maksim Sargsyan
AU - Sergey Y Grebenchuk
AU - Zdeněk Sofer
AU - Makars Šiškins
AU - Kostya S Novoselov
AU - Alexey I Berdyugin
AU - Maciej Koperski
AU - Davit A Ghazaryan
PY - 2026
DA - 2026/10/24
JO - Nanophotonics (Berlin, Germany)
DO - 10.1002/nap2.70327
UR - https://europepmc.org/article/MED/42926975
AB - The integration of polarization-control elements into nanoscale photonic circuits remains a central challenge for modern on-chip optical technologies, which call for continuous miniaturization. Van der Waals (vdW) crystals provide a versatile platform for their creation because of strong optical anisotropy, low loss accompanied by high refractive indices, and atomically precise heterostructure assembly capabilities. In this work, we present an approach towards the creation of all-vdW on-chip birefringent polarization-conversion elements operating in the near-infrared (NIR) spectral region, realized by uniquely twisted ReSe2/α-MoO3 heterostructures placed on a Si/SiO2 platform. Our proof-of-principle stacks demonstrate up to 64.5 % average degree of circular polarization (DoCP) quantitatively reproduced by finite-difference time-domain (FDTD) simulations. The latter reveals critical roles of layer thickness, twist angle, and Fabry-Perot interference effects in the determination of polarization conversion efficiency, which yields DoCP values close to unity for a layer thickness of about twice that of zero-order quarter-wave plate conditions of a free-standing slabs. Our findings establish a practical route toward fully integrated all-vdW polarization optical elements, providing a foundation for nanoscale photonic architectures entirely based on layered materials.
SN - 2192-8606
SN - 2192-8614
ER -