Low-Power All-Optical Bistable Device of Twisted-Nematic Liquid Crystal Based on Surface Plasmons in a Metal--Insulator--Metal Structure
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概要
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A low-power all-optical bistable device of twisted-nematic liquid crystal (TN-LC) is reported, on the basis of coupled surface plasmons (SPs) in a metal--insulator--metal (MIM) structure. The lowest threshold switching illumination was 0.3 mW/mm2, which is much lower than the value we previously reported for a similar all-optical TN-LC device based on the coupled SPs in a gold grating. The threshold illumination is lower at higher temperature up to the phase transition. The TN-LC device is promising for two-dimensional optical memories or spatial light modulators, since the structure is simple and free from electronic circuits.
- 2013-01-25
著者
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Takanishi Yoichi
Department Of Organic And Polymeric Materials Tokyo Institute Of Technology
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Kajikawa Kotaro
Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of Technology
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Tanaka Daisuke
Interdisciplinary Graduate School Of Science And Engineering Tokyo Institute Of Technology
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Tanaka Daisuke
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Yokohama 226-8502, Japan
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Thanh Pham
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Yokohama 226-8502, Japan
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Fujimura Ryushi
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Yokohama 226-8502, Japan
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THANH Pham
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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FUJIMURA Ryushi
Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
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