Tunable negative refraction in nematic liquid crystals

Qian Zhao; Lei Kang; Bo Li; Ji Zhou; Hong Tang; Baizhe Zhang

doi:10.1063/1.2399345

Tunable negative refraction in nematic liquid crystals

Qian Zhao, Lei Kang, Bo Li, Ji Zhou, Hong Tang, Baizhe Zhang

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

28 Scopus citations

Abstract

A tunable negative refraction mechanism based on the properties of nematic liquid crystals is proposed. It shows that negative group refraction occurs at the interface between air and the nematic liquid crystals, and that the refraction can be adjusted by an applied electric field and by the temperature. For a nematic liquid crystal (E7, Merck), the group refraction is negative for the voltages of 1.0-2.8 V and reaches a maximum at 1.5 V. The negative group refraction decreases monotonously with increasing temperature. Such mechanism demonstrates the feasibility of tunable negative refraction devices based on liquid crystals.

Original language	English (US)
Article number	221918
Journal	Applied Physics Letters
Volume	89
Issue number	22
DOIs	https://doi.org/10.1063/1.2399345
State	Published - 2006

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2399345

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title = "Tunable negative refraction in nematic liquid crystals",

abstract = "A tunable negative refraction mechanism based on the properties of nematic liquid crystals is proposed. It shows that negative group refraction occurs at the interface between air and the nematic liquid crystals, and that the refraction can be adjusted by an applied electric field and by the temperature. For a nematic liquid crystal (E7, Merck), the group refraction is negative for the voltages of 1.0-2.8 V and reaches a maximum at 1.5 V. The negative group refraction decreases monotonously with increasing temperature. Such mechanism demonstrates the feasibility of tunable negative refraction devices based on liquid crystals.",

author = "Qian Zhao and Lei Kang and Bo Li and Ji Zhou and Hong Tang and Baizhe Zhang",

note = "Funding Information: This work is supported by the National Science Foundation of China under Grant Nos. 50425204, 90401012, and 60608016, and by the National Basic Research Program of China under subproject No. 2002CB61306.",

year = "2006",

doi = "10.1063/1.2399345",

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journal = "Applied Physics Letters",

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T1 - Tunable negative refraction in nematic liquid crystals

AU - Zhao, Qian

AU - Kang, Lei

AU - Li, Bo

AU - Zhou, Ji

AU - Tang, Hong

AU - Zhang, Baizhe

N1 - Funding Information: This work is supported by the National Science Foundation of China under Grant Nos. 50425204, 90401012, and 60608016, and by the National Basic Research Program of China under subproject No. 2002CB61306.

PY - 2006

Y1 - 2006

N2 - A tunable negative refraction mechanism based on the properties of nematic liquid crystals is proposed. It shows that negative group refraction occurs at the interface between air and the nematic liquid crystals, and that the refraction can be adjusted by an applied electric field and by the temperature. For a nematic liquid crystal (E7, Merck), the group refraction is negative for the voltages of 1.0-2.8 V and reaches a maximum at 1.5 V. The negative group refraction decreases monotonously with increasing temperature. Such mechanism demonstrates the feasibility of tunable negative refraction devices based on liquid crystals.

AB - A tunable negative refraction mechanism based on the properties of nematic liquid crystals is proposed. It shows that negative group refraction occurs at the interface between air and the nematic liquid crystals, and that the refraction can be adjusted by an applied electric field and by the temperature. For a nematic liquid crystal (E7, Merck), the group refraction is negative for the voltages of 1.0-2.8 V and reaches a maximum at 1.5 V. The negative group refraction decreases monotonously with increasing temperature. Such mechanism demonstrates the feasibility of tunable negative refraction devices based on liquid crystals.

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Tunable negative refraction in nematic liquid crystals

Abstract

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