Color-temperature tunable white reflector using bichiral liquid crystal films

被引：8

作者：

Ha, Na Young ^{[1
,2
]}

Jeong, Soon Moon ^{[3
]}

Nishimura, Suzushi ^{[3
]}

Takezoe, Hideo ^{[4
]}

机构：

[1] Ajou Univ, Dept Phys, Suwon 443749, South Korea

[2] Ajou Univ, Div Energy Syst Res, Suwon 443749, South Korea

[3] JX Nippon Oil & Energy Corp, Cent Tech Res Lab, Naka Ku, Yokohama, Kanagawa 2310815, Japan

[4] Tokyo Inst Technol, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 25期

基金：

新加坡国家研究基金会;

关键词：

LIGHT-EMITTING-DIODES;

D O I：

10.1364/OE.18.026339

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have demonstrated multicolored reflections showing various whitish colors from a bichiral liquid crystal (LC) film. The bichiral LC film was fabricated by using left-handed and right-handed polymeric cholesteric liquid crystal (CLC) films with two different helical pitches and an isotropic polymer film in between. Color temperatures of the multiple reflections are controlled from similar to 4000 K to similar to 10000 K by changing linear polarization directions of normally incident and reflected lights. This characteristic can extend practical applications of CLCs to illuminant devices. (C)2010 Optical Society of America

引用

页码：26339 / 26344

页数：6

共 17 条

[1] OPTICS IN STRATIFIED AND ANISOTROPIC MEDIA - 4X4-MATRIX FORMULATION
BERREMAN, DW
[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1972, 62 (04) : 502 - &
[2] de Gennes P. G., 1993, The Physics of Liquid Crystals, V2nd ed
[3] Dichromatic color tuning with InGaN-based light-emitting diodes
Fellows, Natalie N.
Sato, Hitoshi
Lin, You-da
Chung, Roy B.
DenBaars, Steven P.
Nakamura, Shuji
[J]. APPLIED PHYSICS LETTERS, 2008, 93 (12)
[4] Emission color tunable light-emitting diodes composed of InGaN multifacet quantum wells
Funato, M.
Hayashi, K.
Ueda, M.
Kawakami, Y.
Narukawa, Y.
Mukai, T.
[J]. APPLIED PHYSICS LETTERS, 2008, 93 (02)
[5] Multilayer polymer light-emitting diodes: White-light emission with high efficiency
Gong, X
Wang, S
Moses, D
Bazan, GC
Heeger, AJ
[J]. ADVANCED MATERIALS, 2005, 17 (17) : 2053 - +
[6] Fabrication of a simultaneous red-green-blue reflector using single-pitched cholesteric liquid crystals
Ha, Na Young
Ohtsuka, Youko
Jeong, Soon Moon
Nishimura, Suzushi
Suzaki, Goroh
Takanishi, Yoichi
Ishikawa, Ken
Takezoe, Hideo
[J]. NATURE MATERIALS, 2008, 7 (01) : 43 - 47
[7] Polarization-independent multiple selective reflections from bichiral liquid crystal films
Ha, Na Young
Jeong, Soon Moon
Nishimura, Suzushi
Takezoe, Hideo
[J]. APPLIED PHYSICS LETTERS, 2010, 96 (15)
[8] Hunt R.W. G., 1991, MEASURING COLOR
[9] Highly circularly polarized electroluminescence from organic light-emitting diodes with wide-band reflective polymeric cholesteric liquid crystal films
Jeong, Soon Moon
Ohtsuka, Youko
Ha, Na Young
Takanishi, Yoichi
Ishikawa, Ken
Takezoe, Hideo
Nishimura, Suzushi
Suzaki, Goroh
[J]. APPLIED PHYSICS LETTERS, 2007, 90 (21)
[10] Defect mode lasing from a double-layered dye-doped polymeric cholesteric liquid crystal films with a thin rubbed defect layer
Jeong, Soon Moon
Ha, Na Young
Takanishi, Yoichi
Ishikawa, Ken
Takezoe, Hideo
Nishimura, Suzushi
Suzaki, Goro
[J]. APPLIED PHYSICS LETTERS, 2007, 90 (26)

← 1 2 →