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Advanced filters: Author: Abhi Saxena Clear advanced filters

Unified laser stabilization and isolation on a silicon chip

Both laser stabilization and isolation are demonstrated simultaneously by using Kerr nonlinearity in a high-Q silicon nitride ring resonator to self-injection lock a distributed-feedback laser, bringing on-chip lasers closer to real-world fully integrated applications.

Alexander D. White
Geun Ho Ahn
Jelena Vučković
Research15 Oct 2024
Nature Photonics

Volume: 18, P: 1305-1311
Non-volatile electrically programmable integrated photonics with a 5-bit operation

Phase change materials (PCMs) are promising for low-power programmable photonic circuits. Here, authors show electrically controlled wide-bandgap PCM antimony sulfide achieving low loss, high cyclability and up to 32 levels, and post-fabrication trimming is also demonstrated.

Rui Chen
Zhuoran Fang
Arka Majumdar
ResearchOpen Access12 Jun 2023
Nature Communications

Volume: 14, P: 1-10
Realizing tight-binding Hamiltonians using site-controlled coupled cavity arrays

The authors demonstrate a programmable and mappable silicon photonic coupled cavity array capable of implementing a wide range of tight-binding Hamiltonians. This work is useful for realizing integrated photonic analog quantum simulators.

Abhi Saxena
Arnab Manna
Arka Majumdar
ResearchOpen Access29 Aug 2023
Nature Communications

Volume: 14, P: 1-7
Ultra-low-energy programmable non-volatile silicon photonics based on phase-change materials with graphene heaters

A non-volatile silicon photonics switch based on phase-change materials actuated by graphene heaters shows a switching energy density that is within an order of magnitude of the fundamental thermodynamic limit.

Zhuoran Fang
Rui Chen
Arka Majumdar
Research04 Jul 2022
Nature Nanotechnology

Volume: 17, P: 842-848
Exciton–phonon interactions in nanocavity-integrated monolayer transition metal dichalcogenides

David Rosser
Taylor Fryett
Arka Majumdar
ResearchOpen Access10 Jul 2020
npj 2D Materials and Applications

Volume: 4, P: 1-6