Topological, nonreciprocal, and multiresonant slow light beyond the time-bandwidth limit

KL Tsakmakidis, K Baskourelos, T Stefański - Applied Physics Letters, 2021 - pubs.aip.org
Topologically protected transport has recently emerged as an effective means to address a
recurring problem hampering the field of slow light for the past two decades: its keen …

Photonic modal circulator using temporal refractive-index modulation with spatial inversion symmetry

J Wang, JF Herrmann, JD Witmer, AH Safavi-Naeini… - Physical Review Letters, 2021 - APS
It has been demonstrated that dynamic refractive-index modulation, which breaks time-
reversal symmetry, can be used to create on-chip nonreciprocal photonic devices. In order to …

Thermo-optically induced transparency on a photonic chip

M Clementi, S Iadanza, SA Schulz, G Urbinati… - Light: Science & …, 2021 - nature.com
Controlling the optical response of a medium through suitably tuned coherent
electromagnetic fields is highly relevant in a number of potential applications, from all-optical …

Amplification of cascaded down-conversion by reusing photons with a switchable cavity

AZ Leger, S Gambhir, J Légère, DR Hamel - Physical Review Research, 2023 - APS
The ability to efficiently produce and manipulate nonclassical states of light is a critical
requirement for the development of quantum optical technologies. In recent years …

Design guidelines for a tunable SOI based optical isolator in a partially time-modulated ring resonator

A Zarif, K Mehrany, M Memarian… - IEEE Photonics …, 2022 - ieeexplore.ieee.org
In this paper, we present the design guidelines for a tunable optical isolator in an SOI-based
ring resonator with two small time-modulated regions. By considering a physical model, the …

Unconventional time-bandwidth performance of resonant cavities with nonreciprocal coupling

I Cardea, D Grassani, J Upham, SA Schulz… - Physical Review A, 2021 - APS
The time-bandwidth limit is a mathematical tenet that affects all reciprocal resonators, stating
that the product of the spectral bandwidth that can couple into a resonant system and its …