High-speed analog spatial light modulator using a hydrogenated amorphous silicon photosensor and an electroclinic liquid crystal

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

doi:10.1063/1.102250

High-speed analog spatial light modulator using a hydrogenated amorphous silicon photosensor and an electroclinic liquid crystal

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

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

47 Scopus citations

Abstract

A high-speed optically addressed spatial light modulator is described which uses the electroclinic effect in chiral smectic A liquid crystals with a p-i-n photodiode of hydrogenated amorphous silicon (a-Si:H). The near microsecond response time is a function of the liquid-crystal mixture and temperature. We present and analyze optical modulation measurements of a device which exhibits a response time of 40 μs at 29°C and 4 μs at 50°C. The optical response is continuous and linear with electric field and write-light intensity, allowing for grey level applications.

Original language	English
Pages (from-to)	1603-1605
Number of pages	3
Journal	Applied Physics Letters
Volume	55
Issue number	16
DOIs	https://doi.org/10.1063/1.102250
State	Published - 16 Oct 1989
Externally published	Yes

Keywords

Solar cells
Liquid crystals
Optical modulators
Photodetectors
Photodiodes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.102250

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title = "High-speed analog spatial light modulator using a hydrogenated amorphous silicon photosensor and an electroclinic liquid crystal",

abstract = "A high-speed optically addressed spatial light modulator is described which uses the electroclinic effect in chiral smectic A liquid crystals with a p-i-n photodiode of hydrogenated amorphous silicon (a-Si:H). The near microsecond response time is a function of the liquid-crystal mixture and temperature. We present and analyze optical modulation measurements of a device which exhibits a response time of 40 μs at 29°C and 4 μs at 50°C. The optical response is continuous and linear with electric field and write-light intensity, allowing for grey level applications.",

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AU - Abdulhalim, I.

AU - Moddel, G.

AU - Johnson, K. M.

PY - 1989/10/16

Y1 - 1989/10/16

N2 - A high-speed optically addressed spatial light modulator is described which uses the electroclinic effect in chiral smectic A liquid crystals with a p-i-n photodiode of hydrogenated amorphous silicon (a-Si:H). The near microsecond response time is a function of the liquid-crystal mixture and temperature. We present and analyze optical modulation measurements of a device which exhibits a response time of 40 μs at 29°C and 4 μs at 50°C. The optical response is continuous and linear with electric field and write-light intensity, allowing for grey level applications.

AB - A high-speed optically addressed spatial light modulator is described which uses the electroclinic effect in chiral smectic A liquid crystals with a p-i-n photodiode of hydrogenated amorphous silicon (a-Si:H). The near microsecond response time is a function of the liquid-crystal mixture and temperature. We present and analyze optical modulation measurements of a device which exhibits a response time of 40 μs at 29°C and 4 μs at 50°C. The optical response is continuous and linear with electric field and write-light intensity, allowing for grey level applications.

KW - Solar cells

KW - Liquid crystals

KW - Optical modulators

KW - Photodetectors

KW - Photodiodes

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DO - 10.1063/1.102250

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 16

ER -

High-speed analog spatial light modulator using a hydrogenated amorphous silicon photosensor and an electroclinic liquid crystal

Abstract

Keywords

ASJC Scopus subject areas

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