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

Dmitrii Litvinov; Ilia Begichev; Iakov Reznikov; Changyi Chen; Maksim Sargsyan; Sergey Y. Grebenchuk; Makars Siskins; Kostya S. Novoselov; Alexey I. Berdyugin; Maciej Koperski; Davit A. Ghazaryan

arXiv · 2607.21748

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

Dmitrii Litvinov·Ilia Begichev·Iakov Reznikov·Changyi Chen·Maksim Sargsyan·Sergey Y. Grebenchuk·Makars Siskins·Kostya S. Novoselov·Alexey I. Berdyugin·Maciej Koperski·Davit A. Ghazaryan

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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 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.

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Dmitrii Litvinov, Ilia Begichev, Iakov Reznikov, Changyi Chen, Maksim Sargsyan, Sergey Y. Grebenchuk, Makars Siskins, Kostya S. Novoselov, Alexey I. Berdyugin, Maciej Koperski, Davit A. Ghazaryan. 2026-07-23. Towards on-chip nascent all-van-der-Waals polarization optical components for nanoscale photonic applications. https://arxiv.org/abs/2607.21748

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