Tunable nanophotonics enabled by chalcogenide phase-change materials
-
- Sajjad Abdollahramezani
- School of Electrical and Computer Engineering , Georgia Institute of Technology , 778 Atlantic Drive NW , Atlanta , GA 30332-0250 , USA
-
- Omid Hemmatyar
- School of Electrical and Computer Engineering , Georgia Institute of Technology , 778 Atlantic Drive NW , Atlanta , GA 30332-0250 , USA
-
- Hossein Taghinejad
- School of Electrical and Computer Engineering , Georgia Institute of Technology , 778 Atlantic Drive NW , Atlanta , GA 30332-0250 , USA
-
- Alex Krasnok
- Photonics Initiative, Advanced Science Research Center , City University of New York , New York , NY 10031 , USA
-
- Yashar Kiarashinejad
- School of Electrical and Computer Engineering , Georgia Institute of Technology , 778 Atlantic Drive NW , Atlanta , GA 30332-0250 , USA
-
- Mohammadreza Zandehshahvar
- School of Electrical and Computer Engineering , Georgia Institute of Technology , 778 Atlantic Drive NW , Atlanta , GA 30332-0250 , USA
-
- Andrea Alù
- Photonics Initiative, Advanced Science Research Center , City University of New York , New York , NY 10031 , USA
-
- Ali Adibi
- School of Electrical and Computer Engineering , Georgia Institute of Technology , 778 Atlantic Drive NW , Atlanta , GA 30332-0250 , USA
説明
<jats:title>Abstract</jats:title> <jats:p>Nanophotonics has garnered intensive attention due to its unique capabilities in molding the flow of light in the subwavelength regime. Metasurfaces (MSs) and photonic integrated circuits (PICs) enable the realization of mass-producible, cost-effective, and efficient flat optical components for imaging, sensing, and communications. In order to enable nanophotonics with multipurpose functionalities, chalcogenide phase-change materials (PCMs) have been introduced as a promising platform for tunable and reconfigurable nanophotonic frameworks. Integration of non-volatile chalcogenide PCMs with unique properties such as drastic optical contrasts, fast switching speeds, and long-term stability grants substantial reconfiguration to the more conventional static nanophotonic platforms. In this review, we discuss state-of-the-art developments as well as emerging trends in tunable MSs and PICs using chalcogenide PCMs. We outline the unique material properties, structural transformation, and thermo-optic effects of well-established classes of chalcogenide PCMs. The emerging deep learning-based approaches for the optimization of reconfigurable MSs and the analysis of light-matter interactions are also discussed. The review is concluded by discussing existing challenges in the realization of adjustable nanophotonics and a perspective on the possible developments in this promising area.</jats:p>
収録刊行物
-
- Nanophotonics
-
Nanophotonics 9 (5), 1189-1241, 2020-05-01
Walter de Gruyter GmbH
