Reshaping light: reconfigurable photonics enabled by broadband low-loss optical phase change materials
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109820Q.pdf
Description
Published version
Size
1.34 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Zhang, Yifei
Chou, Jeffrey B.
Shalaginov, Mikhail
Ríos, Carlos
Roberts, Christopher
Robinson, Paul
Bohlin, Bridget
Du, Qingyang
Zhang, Qihang
Li, Junying
Date Issued
September 2020
Journal
Proceedings of SPIE - The International Society for Optical Engineering
Publisher
SPIE-Intl Soc Optical Eng
Citation
Zhang, Yifei et al. "Reshaping light: Reconfigurable photonics enabled by broadband low-loss optical phase change materials." Proceedings of SPIE - The International Society for Optical Engineering, May 2019, Baltimore, Maryland, SPIE-Intl Soc Optical Eng, 2019, DOI: 10.1117/12.2513385 © 2019 SPIE.
Version
Final published version
Abstract
Optical phase change materials (O-PCMs) are a unique class of materials which exhibit extraordinarily large optical property change (e.g. refractive index change > 1) when undergoing a solid-state phase transition. Traditional O-PCMs suffer from large optical losses even in their dielectric states, which fundamentally limits the performance of optical devices based on the materials. To resolve the issue, we have recently demonstrated a new O-PCM Ge-Sb-Se-Te (GSST) with broadband low loss characteristics. In this talk, we will review an array of reconfigurable photonic devices enabled by the low-loss O-PCM, including nonvolatile waveguide switches with unprecedented low-loss and high-contrast performance, free-space light modulators, bi-stable reconfigurable metasurfaces, and transient couplers facilitating waferscale device probing and characterizations.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Lincoln Laboratory
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1117/12.2513385
