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Journal Article Switchable Holographic Device Based on Reversible Electrodeposition
Cited 6 time in scopus Share share facebook twitter linkedin kakaostory
Authors
Seong M. Cho, Sujung Kim, Yong-Hae Kim, Chi-Young Hwang, Tae-Youb Kim, Sang Hoon Cheon, Joo Yeon Kim, Chil Seong Ah, Juhee Song, Hojun Ryu, Chi-Sun Hwang, Jeong-Ik Lee
Issue Date
2019-02
Citation
Advanced Materials Technologies, v.4, no.2, pp.1-7
ISSN
2365-709X
Publisher
Wiley
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1002/admt.201800478
Abstract
A new switchable holographic device concept using reversible electrodeposition (RED) technology is proposed. The proposed device has a structure in which the cavity structure is changed by the reversible deposition of Ag, and thus the characteristics of the reflected light are modulated. It has a high reflectance due to a mirror reflection structure and exhibits phase modulation by the reversible deposition of Ag. Because the proposed device is a current-driven device, it is expected to overcome the limitation in the scaling down of the pitch in spatial light modulators, which is considered a limitation of liquid crystal device. A passive type switchable holographic device with a 1 쨉m pitch is implemented using the proposed device. The successful implementation of a switchable holographic image using the fabricated device is confirmed. The proposed device is expected to be applicable as an active metasurface and spatial light modulator device in the visible light region in the future because it has a large modulation in the visible light region.
KSP Keywords
Active metasurface, Cavity structure, Driven device, Liquid crystal device, Passive type, Reflected light, Reflection structure, Spatial light modulator(SLM), Visible Light, high reflectance, phase modulation