Photoinduced birefringence and reversible optical storage in liquid-crystalline azobenzene side-chain polymers

Changshun Wang; Haosheng Fei; Yong Qiu; Yanqiang Yang; Zhenqian Wei; Yanqing Tian; Yongmei Chen; Yingying Zhao

doi:10.1063/1.123138

Photoinduced birefringence and reversible optical storage in liquid-crystalline azobenzene side-chain polymers

Changshun Wang, Haosheng Fei, Yong Qiu, Yanqiang Yang, Zhenqian Wei, Yanqing Tian, Yongmei Chen, Yingying Zhao

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

103 Scopus citations

Abstract

A liquid crystal with an azobenzene moiety as a photoactive mesogenic unit is investigated in photoinduced birefringence. Measurements reveal that it possesses large magnitude of photoinduced birefringence (Δn∼10^-2) and the characteristic of long-term optical storage. The resulting polarization information can be erased either by heating the sample to a temperature much higher than the glass transition temperature, or by optical method with a circularly polarized light. The mechanism of long-term optical storage is discussed in this letter.

Original language	English (US)
Pages (from-to)	19-21
Number of pages	3
Journal	Applied Physics Letters
Volume	74
Issue number	1
DOIs	https://doi.org/10.1063/1.123138
State	Published - 1999

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Photoinduced birefringence and reversible optical storage in liquid-crystalline azobenzene side-chain polymers",

abstract = "A liquid crystal with an azobenzene moiety as a photoactive mesogenic unit is investigated in photoinduced birefringence. Measurements reveal that it possesses large magnitude of photoinduced birefringence (Δn∼10-2) and the characteristic of long-term optical storage. The resulting polarization information can be erased either by heating the sample to a temperature much higher than the glass transition temperature, or by optical method with a circularly polarized light. The mechanism of long-term optical storage is discussed in this letter.",

author = "Changshun Wang and Haosheng Fei and Yong Qiu and Yanqiang Yang and Zhenqian Wei and Yanqing Tian and Yongmei Chen and Yingying Zhao",

year = "1999",

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T1 - Photoinduced birefringence and reversible optical storage in liquid-crystalline azobenzene side-chain polymers

AU - Wang, Changshun

AU - Fei, Haosheng

AU - Qiu, Yong

AU - Yang, Yanqiang

AU - Wei, Zhenqian

AU - Tian, Yanqing

AU - Chen, Yongmei

AU - Zhao, Yingying

PY - 1999

Y1 - 1999

N2 - A liquid crystal with an azobenzene moiety as a photoactive mesogenic unit is investigated in photoinduced birefringence. Measurements reveal that it possesses large magnitude of photoinduced birefringence (Δn∼10-2) and the characteristic of long-term optical storage. The resulting polarization information can be erased either by heating the sample to a temperature much higher than the glass transition temperature, or by optical method with a circularly polarized light. The mechanism of long-term optical storage is discussed in this letter.

AB - A liquid crystal with an azobenzene moiety as a photoactive mesogenic unit is investigated in photoinduced birefringence. Measurements reveal that it possesses large magnitude of photoinduced birefringence (Δn∼10-2) and the characteristic of long-term optical storage. The resulting polarization information can be erased either by heating the sample to a temperature much higher than the glass transition temperature, or by optical method with a circularly polarized light. The mechanism of long-term optical storage is discussed in this letter.

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JF - Applied Physics Letters

IS - 1

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Photoinduced birefringence and reversible optical storage in liquid-crystalline azobenzene side-chain polymers

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