18 citations · 19 across the 9 of their papers we have counts for
10 papers
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…
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…
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…
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…
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…
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…
Hybrid Nonlinear Effects in Photonic Integrated Circuits
Arghadeep Pal, Alekhya Ghosh, Shuangyou Zhang +5
Nonlinear optics in photonic integrated circuits is usually limited to utilizing the nonlinearity of a single material. In this work, we demonstrate the use of hybrid optical nonli…
Linear and Nonlinear Coupling of Light in Twin-Resonators with Kerr Nonlinearity
Arghadeep Pal, Alekhya Ghosh, Shuangyou Zhang +6
Nonlinear effects in microresonators are efficient building blocks for all-optical computing and telecom systems. With the latest advances in microfabrication, coupled microresonat…
Real-time imaging of standing-wave patterns in microresonators
Haochen Yan, Alekhya Ghosh, Arghadeep Pal +9
Real-time characterization of microresonator dynamics is important for many applications. In particular it is critical for near-field sensing and understanding light-matter interac…
Microresonator soliton frequency combs via cascaded Brillouin scattering
Hao Zhang, Shuangyou Zhang, Toby Bi +7
We demonstrate Kerr soliton frequency comb generation that is seeded by a cascaded Brillouin scattering process. In this process, a pump laser is used to generate multiple orders o…