Towards on-chip nascent all-van-der-Waals polarization optical components for nanoscale photonic applications

@misc{litvinov2026towards,
  title = {{Towards on-chip nascent all-van-der-Waals polarization optical components for nanoscale photonic applications}},
  author = {Dmitrii Litvinov and Ilia Begichev and Iakov Reznikov and Changyi Chen and Maksim Sargsyan and Sergey Y. Grebenchuk and Makars Siskins and Kostya S. Novoselov and Alexey I. Berdyugin and Maciej Koperski and Davit A. Ghazaryan},
  howpublished = {arXiv},
  year = {2026},
  month = jul,
  doi = {10.48550/arxiv.2607.21748},
  eprint = {2607.21748},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.21748},
}

TY  - UNPB
TI  - Towards on-chip nascent all-van-der-Waals polarization optical components for nanoscale photonic applications
AU  - Dmitrii Litvinov
AU  - Ilia Begichev
AU  - Iakov Reznikov
AU  - Changyi Chen
AU  - Maksim Sargsyan
AU  - Sergey Y. Grebenchuk
AU  - Makars Siskins
AU  - Kostya S. Novoselov
AU  - Alexey I. Berdyugin
AU  - Maciej Koperski
AU  - Davit A. Ghazaryan
PY  - 2026
DA  - 2026/07/23
PB  - arXiv
DO  - 10.48550/arxiv.2607.21748
UR  - https://arxiv.org/abs/2607.21748
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 the creation of such components owing to their strong optical anisotropy, high-refractive indices and atomically precise heterostructure assembly capabilities. In this work, we demonstrate an approach towards the creation of all-vdW on-chip polarization optical components, exemplified with quarter-wave plates operating in the near-infrared (NIR) spectral region, realized in specifically twisted ReSe2/alpha-MoO3 vdW heterostructures on a Si/SiO2 platform. Here, low-symmetry ReSe2 layer serves as a source of exceptionally high linearly polarized excitonic emission, whereas in-plane birefringent alpha-MoO_3 provides polarization-state conversion. Furthermore, our finite-difference time-domain (FDTD) simulations quantitatively reproduce the experimental observations with high accuracy revealing the critical roles of layer thicknesses, twist-angle, Fabry-Perot interference and emitter distribution effects in the determination of polarization conversion efficiency, which yields up to 95 % degrees of circular polarization (DoCP) for the optimized parametrization. Our findings establish a practical route towards fully integrated all-vdW polarization optical components, providing a foundation for nanoscale photonic architectures based entirely on layered materials.
ER  -