Reconfigurable Holograms Using VO2-Based Tunable Metasurface

Tamar Haimov; Koray Aydin; Jacob Scheuer

doi:10.1109/JSTQE.2020.3011678

Reconfigurable Holograms Using VO2-Based Tunable Metasurface

Tamar Haimov^*, Koray Aydin, Jacob Scheuer

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We propose a new approach for dynamic holography at optical frequencies utilizing a cavity incorporating an active VO2 layer. By introducing a Bragg reflector at the bottom side of the active cavity, it is possible to obtain a 180° phase shift between the reflected waves in the cold and hot states of the VO2, while maintaining the reflectivity constant at ∼60%. Utilizing this property, we propose and analyze a reconfigurable metasurface which can realize tunable binary holography at optical frequencies. We study the potential performances of such reconfigurable hologram and their sensitivity to variations in the wavelength, polarization and illumination angle. We also show that when tuned to the proper temperature this device can serve as broad-angle perfect absorber.

Original language	English (US)
Article number	9147022
Journal	IEEE Journal of Selected Topics in Quantum Electronics
Volume	27
Issue number	1
DOIs	https://doi.org/10.1109/JSTQE.2020.3011678
State	Published - Jan 1 2021

Funding

K. A. acknowledges support from the Office of Naval Research Young Investigator Program (ONR-YIP) Award (N00014-17-1-2425). Manuscript received April 1, 2020; revised July 21, 2020; accepted July 21, 2020. Date of publication July 24, 2020; date of current version August 19, 2020. This work was supported in part by the Binational Science Foundation Grant 2016388. (Corresponding author: Jacob Scheuer.) Tamar Haimov and Jacob Scheuer are with the Department of Physical Electronics, Tel-Aviv University, Tel-Aviv 69978, Israel (e-mail: tamarhaimov12 @gmail.com; [email protected]).

Keywords

Holography
Metasurface
Phase change materials

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/JSTQE.2020.3011678

Cite this

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abstract = "We propose a new approach for dynamic holography at optical frequencies utilizing a cavity incorporating an active VO2 layer. By introducing a Bragg reflector at the bottom side of the active cavity, it is possible to obtain a 180° phase shift between the reflected waves in the cold and hot states of the VO2, while maintaining the reflectivity constant at ∼60%. Utilizing this property, we propose and analyze a reconfigurable metasurface which can realize tunable binary holography at optical frequencies. We study the potential performances of such reconfigurable hologram and their sensitivity to variations in the wavelength, polarization and illumination angle. We also show that when tuned to the proper temperature this device can serve as broad-angle perfect absorber.",

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AB - We propose a new approach for dynamic holography at optical frequencies utilizing a cavity incorporating an active VO2 layer. By introducing a Bragg reflector at the bottom side of the active cavity, it is possible to obtain a 180° phase shift between the reflected waves in the cold and hot states of the VO2, while maintaining the reflectivity constant at ∼60%. Utilizing this property, we propose and analyze a reconfigurable metasurface which can realize tunable binary holography at optical frequencies. We study the potential performances of such reconfigurable hologram and their sensitivity to variations in the wavelength, polarization and illumination angle. We also show that when tuned to the proper temperature this device can serve as broad-angle perfect absorber.

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Reconfigurable Holograms Using VO2-Based Tunable Metasurface

Abstract

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Keywords

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