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20232026
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physics.optics2026

Quantum dot single photon source on SiN integrated with coupled crossover waveguides

Akinari Fujita, Hironobu Yoshimi, Natthajuks Pholsen +5

Hybrid integration of InAs/GaAs quantum dot (QD) single-photon sources (SPSs) is a promising approach for introducing quantum light into SiN photonic integrated circuits. However,…

physics.optics2025

BIC slow light waveguides based on interband coupling

Sae R. Endo, Yuta Tanimura, Takahiro Ito +5

Harnessing bound states in the continuum (BICs) for guiding light in leaky environments has unlocked new possibilities in photonic integrated circuits. BIC confinement enables low-…

physics.optics2025

Design of Ultrathin Faraday Rotators based on All-dielectric Magneto-optical Metasurfaces at the Telecommunication Band

Siyuan Gao, Tianji Liu, Satoshi Iwamoto +1

Magneto-optical (MO) interactions offer a direct route to nonreciprocal optical devices but are intrinsically weak in the optical domain, posing a major challenge in downsizing MO…

physics.optics2025

Experimental realization of wide-mode-area slow light modes in valley photonic crystal heterostructure waveguides

Chengkun Zhang, Guangtai Lu, Nattujuks Pholsen +2

We experimentally realized wide-mode-area slow-light modes in valley photonic crystals (VPhCs) heterostructure waveguides. The waveguides are fabricated on a silicon slab by insert…

physics.optics2025

Slow Light Waveguides based on Bound States in the Continuum

Yuta Tanimura, Yuki Ishii, Kenta Takata +4

The concept of bound states in the continuum (BIC) has been advancing light confinement technology in leaky environments. In this letter, we propose and numerically demonstrate a s…

physics.optics2023

Efficient light couplers to topological slow light waveguides in valley photonic crystals

Hironobu Yoshimi, Takuto Yamaguchi, Satomi Ishida +2

We numerically and experimentally demonstrate efficient light couplers between topological slow light waveguides in valley photonic crystals (VPhCs) and wire waveguides. By numeric…