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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 25 — Dec. 6, 2010
  • pp: 26339–26344

Color-temperature tunable white reflector using bichiral liquid crystal films

Na Young Ha, Soon Moon Jeong, Suzushi Nishimura, and Hideo Takezoe  »View Author Affiliations

Optics Express, Vol. 18, Issue 25, pp. 26339-26344 (2010)

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Abstract: 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 ~4000 K 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.

© 2010 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(160.4760) Materials : Optical properties
(230.4170) Optical devices : Multilayers

ToC Category:
Optical Devices

Original Manuscript: October 5, 2010
Revised Manuscript: November 18, 2010
Manuscript Accepted: November 19, 2010
Published: December 1, 2010

Na Young Ha, Soon Moon Jeong, Suzushi Nishimura, and Hideo Takezoe, "Color-temperature tunable white reflector using bichiral liquid crystal films," Opt. Express 18, 26339-26344 (2010)

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