activity
20162026
most citedRoom-Temperature Sputtered Ultralow-loss Silicon Nitride for Hybrid Photonic Integration

50 citations · 244 across the 23 of their papers we have counts for

collaborators

34 papers

physics.optics2026

Twin-photon generation in a silicon nitride microresonator

Franz Pacher, Haochen Yan, Alekhya Ghosh +8

Photonic chips with silicon nitride () microring resonators are well established as heralded single-photon sources, but their operation as frequency-degenerate tw…

physics.optics2026

Fourth-harmonic UV light generation in integrated silicon nitride microresonators

Alekhya Ghosh, Arghadeep Pal, Haochen Yan +6

Integrated silicon nitride (Si3N4) resonators have emerged as a leading platform for nonlinear photonics, yet generating light at wavelength in the ultraviolet (UV) has remained el…

physics.optics2026

Color symmetry breaking in a nonlinear optical microcavity

Luca O. Trinchão, Alekhya Ghosh, Arghadeep Pal +8

Spontaneous symmetry breaking leads to diverse phenomena across the natural sciences, from the Higgs mechanism in particle physics to superconductors and collective animal behavior…

physics.optics2025

Scattering Induced Mode Chirality in Ring Resonators

Haochen Yan, Xu Guo, Arghadeep Pal +15

Non-Hermitian physics can be used to break time reversal symmetry and is important for interactions in a wide range of systems, from active matter and neural networks to metamateri…

physics.optics2025

Visualization of nonlinear optics in a microresonator

Hao Zhang, Haochen Yan, Alekhya Ghosh +10

A precise understanding of nonlinear optical phenomena in whispering gallery mode (WGM) microresonators is crucial for developing next-generation integrated photonic devices. Appli…

physics.optics2025

Simplified Aluminum Nitride Processing for Low-Loss Integrated Photonics and Nonlinear Optics

Haochen Yan, Shuangyou Zhang, Arghadeep Pal +12

Aluminum nitride (AlN) is an extremely promising material for integrated photonics because of the combination of strong \c{hi}2 and \c{hi}3 nonlinearities. However, the intrinsic h…