Optically addressed electroclinic liquid crystal spatial light modulator with an a-Si:H photodiode

I. Abdulhalim; G. Moddel; K. M. Johnson; C. M. Walker

doi:10.1016/0022-3093(89)90392-X

Optically addressed electroclinic liquid crystal spatial light modulator with an a-Si:H photodiode

I. Abdulhalim, G. Moddel, K. M. Johnson, C. M. Walker

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

3 Scopus citations

Abstract

A fast optically addressed spatial light modulator (OASLM) is demonstrated using a p-i-n photodiode of hydrogenated amorphous silicon (a-Si:H) and the electroclinic effect in chiral smectic A liquid crystals. The response time depends on the material and the temperature. We used a material with a response time of 40 μs at 29°C and 4 μs at 51°C. This work shows that there is an excellent match between a-Si:H photodiodes as photosensors and high speed liquid crystals as electrooptic modulators. The optical response varies with the field and write-light intensity, allowing for grey level applications.

Original language	English
Pages (from-to)	162-164
Number of pages	3
Journal	Journal of Non-Crystalline Solids
Volume	115
Issue number	1-3
DOIs	https://doi.org/10.1016/0022-3093(89)90392-X
State	Published - 3 Dec 1989
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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10.1016/0022-3093(89)90392-X

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abstract = "A fast optically addressed spatial light modulator (OASLM) is demonstrated using a p-i-n photodiode of hydrogenated amorphous silicon (a-Si:H) and the electroclinic effect in chiral smectic A liquid crystals. The response time depends on the material and the temperature. We used a material with a response time of 40 μs at 29°C and 4 μs at 51°C. This work shows that there is an excellent match between a-Si:H photodiodes as photosensors and high speed liquid crystals as electrooptic modulators. The optical response varies with the field and write-light intensity, allowing for grey level applications.",

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AU - Abdulhalim, I.

AU - Moddel, G.

AU - Johnson, K. M.

AU - Walker, C. M.

PY - 1989/12/3

Y1 - 1989/12/3

N2 - A fast optically addressed spatial light modulator (OASLM) is demonstrated using a p-i-n photodiode of hydrogenated amorphous silicon (a-Si:H) and the electroclinic effect in chiral smectic A liquid crystals. The response time depends on the material and the temperature. We used a material with a response time of 40 μs at 29°C and 4 μs at 51°C. This work shows that there is an excellent match between a-Si:H photodiodes as photosensors and high speed liquid crystals as electrooptic modulators. The optical response varies with the field and write-light intensity, allowing for grey level applications.

AB - A fast optically addressed spatial light modulator (OASLM) is demonstrated using a p-i-n photodiode of hydrogenated amorphous silicon (a-Si:H) and the electroclinic effect in chiral smectic A liquid crystals. The response time depends on the material and the temperature. We used a material with a response time of 40 μs at 29°C and 4 μs at 51°C. This work shows that there is an excellent match between a-Si:H photodiodes as photosensors and high speed liquid crystals as electrooptic modulators. The optical response varies with the field and write-light intensity, allowing for grey level applications.

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JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

IS - 1-3

ER -

Optically addressed electroclinic liquid crystal spatial light modulator with an a-Si:H photodiode

Abstract

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