Coherent beam amplification with a photorefractive liquid crystal

I. C. Khoo; B. D. Guenther; M. V. Wood; P. Chen; Min Yi Shih

doi:10.1364/OL.22.001229

Coherent beam amplification with a photorefractive liquid crystal

I. C. Khoo, B. D. Guenther, M. V. Wood, P. Chen, Min Yi Shih

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Abstract

Coherent amplification of a signal beam by a strong pump beam is observed in thin films of fullerene-doped nematic liquid crystal. Exponential gain constants as high as 2890 cm^-1 with no phase cross talk are achieved at low applied dc bias voltage and pump beam intensity. The underlying mechanism is the electro-optically induced spatially reorientation of the liquid-crystal axis and the resultant phase-shifted index grating required for two-beam coupling.

Original language	English (US)
Pages (from-to)	1229-1231
Number of pages	3
Journal	Optics Letters
Volume	22
Issue number	16
DOIs	https://doi.org/10.1364/OL.22.001229
State	Published - Aug 15 1997

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OL.22.001229

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abstract = "Coherent amplification of a signal beam by a strong pump beam is observed in thin films of fullerene-doped nematic liquid crystal. Exponential gain constants as high as 2890 cm-1 with no phase cross talk are achieved at low applied dc bias voltage and pump beam intensity. The underlying mechanism is the electro-optically induced spatially reorientation of the liquid-crystal axis and the resultant phase-shifted index grating required for two-beam coupling.",

author = "Khoo, {I. C.} and Guenther, {B. D.} and Wood, {M. V.} and P. Chen and Shih, {Min Yi}",

year = "1997",

month = aug,

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doi = "10.1364/OL.22.001229",

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journal = "Optics Letters",

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T1 - Coherent beam amplification with a photorefractive liquid crystal

AU - Khoo, I. C.

AU - Guenther, B. D.

AU - Wood, M. V.

AU - Chen, P.

AU - Shih, Min Yi

PY - 1997/8/15

Y1 - 1997/8/15

N2 - Coherent amplification of a signal beam by a strong pump beam is observed in thin films of fullerene-doped nematic liquid crystal. Exponential gain constants as high as 2890 cm-1 with no phase cross talk are achieved at low applied dc bias voltage and pump beam intensity. The underlying mechanism is the electro-optically induced spatially reorientation of the liquid-crystal axis and the resultant phase-shifted index grating required for two-beam coupling.

AB - Coherent amplification of a signal beam by a strong pump beam is observed in thin films of fullerene-doped nematic liquid crystal. Exponential gain constants as high as 2890 cm-1 with no phase cross talk are achieved at low applied dc bias voltage and pump beam intensity. The underlying mechanism is the electro-optically induced spatially reorientation of the liquid-crystal axis and the resultant phase-shifted index grating required for two-beam coupling.

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SP - 1229

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JO - Optics Letters

JF - Optics Letters

IS - 16

ER -

Coherent beam amplification with a photorefractive liquid crystal

Abstract

All Science Journal Classification (ASJC) codes

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