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학술지 Switchable Holographic Device Based on Reversible Electrodeposition
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저자
조성목, 김수정, 김용해, 황치영, 김태엽, 전상훈, 김주연, 아칠성, 송주희, 류호준, 황치선, 이정익
발행일
201902
출처
Advanced Materials Technologies, v.4 no.2, pp.1-7
ISSN
2365-709X
출판사
Wiley
DOI
https://dx.doi.org/10.1002/admt.201800478
협약과제
18HB1600, 고해상도 광대역 실감 입체 영상용 소재 및 소자 기술, 김태엽
초록
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 제안 키워드
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