Nonlinear silicon photonics

M Borghi, C Castellan, S Signorini, A Trenti… - Journal of …, 2017 - iopscience.iop.org
Silicon photonics is a technology based on fabricating integrated optical circuits by using the
same paradigms as the dominant electronics industry. After twenty years of fervid …

Front-induced transitions

MA Gaafar, T Baba, M Eich, AY Petrov - Nature Photonics, 2019 - nature.com
Refractive index fronts propagating in waveguides are special spatiotemporal perturbations.
The interaction of light with such fronts can be described in terms of an indirect transition …

Optical tweezing of microparticles and cells using silicon-photonics-based optical phased arrays

T Sneh, S Corsetti, M Notaros, K Kikkeri… - Nature …, 2024 - nature.com
Integrated optical tweezers have the potential to enable highly-compact, low-cost, mass-
manufactured, and broadly-accessible optical manipulation when compared to standard …

External vs. integrated light sources for intra-data center co-packaged optical interfaces

B Buscaino, E Chen, JW Stewart, T Pham… - Journal of Lightwave …, 2021 - opg.optica.org
Co-packaging of optics and electronics for data center switches has been proposed to
reduce system-level power consumption by minimizing power-hungry electrical …

Infrared chemical imaging through non-degenerate two-photon absorption in silicon-based cameras

D Knez, AM Hanninen, RC Prince, EO Potma… - Light: Science & …, 2020 - nature.com
Chemical imaging based on mid-infrared (MIR) spectroscopic contrast is an important
technique with a myriad of applications, including biomedical imaging and environmental …

Enhancing adjoint optimization-based photonic inverse design with explainable machine learning

C Yeung, D Ho, B Pham, KT Fountaine, Z Zhang… - ACS …, 2022 - ACS Publications
A fundamental challenge in the design of photonic devices, and electromagnetic structures
more generally, is the optimization of their overall architecture to achieve a desired …

Nonlinear carrier dynamics in silicon nano-waveguides

I Aldaya, A Gil-Molina, JL Pita, LH Gabrielli… - Optica, 2017 - opg.optica.org
The understanding of free-carrier dynamics in silicon photonic nano-waveguides and micro-
cavities is fundamental to several nonlinear optical phenomena. Through time-resolved …

Reflection from a free carrier front via an intraband indirect photonic transition

MA Gaafar, D Jalas, L O'Faolain, J Li, TF Krauss… - Nature …, 2018 - nature.com
The reflection of light from moving boundaries is of interest both fundamentally and for
applications in frequency conversion, but typically requires high pump power. By using a …

Highly sensitive detection of infrared photons by nondegenerate two-photon absorption under midinfrared pumping

J Fang, Y Wang, M Yan, E Wu, K Huang, H Zeng - Physical Review Applied, 2020 - APS
We demonstrate highly sensitive photon counting in the infrared region based on two-
photon absorption (2PA) in a silicon avalanche photodiode, where the required photon …

Optical free-carrier generation in silicon nano-waveguides at 1550 nm

A Gil-Molina, I Aldaya, JL Pita, LH Gabrielli… - Applied physics …, 2018 - pubs.aip.org
We report on time-resolved pump and probe characterization of linear and nonlinear optical
generation of free carriers in a silicon strip nano-waveguide at the 1550 nm communication …