Polymer-stabilized reflective fingerprint cholesteric texture grating

Chi Huang Lin, Andy Ying Guey Fuh, Tin Shan Mo, Chi Yen Huang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This study describes a reflective grating. It is fabricated using a simple process consisting of thermal annealing followed by UV irradiation through a grating photomask. The sample is made from a mixture of cholesteric liquid crystal and prepolymer materials. A cholesteric liquid crystal has a planar texture, which changes under an applied external field, thus forming the electrically switchable reflective grating. The multistability of the grating can be achieved by applying various voltage pulses; the memory effect of the grating's gray-scale persists for two months. The high switching contrast ratio and fast response of the grating are also discussed.

Original languageEnglish
Pages (from-to)7441-7446
Number of pages6
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume41
Issue number12
Publication statusPublished - 2002 Dec 1

Fingerprint

Cholesteric liquid crystals
textures
Textures
gratings
Photomasks
polymers
Polymers
Irradiation
Annealing
Data storage equipment
Electric potential
liquid crystals
prepolymers
photomasks
gray scale
irradiation
annealing
electric potential
pulses
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

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Polymer-stabilized reflective fingerprint cholesteric texture grating. / Lin, Chi Huang; Fuh, Andy Ying Guey; Mo, Tin Shan; Huang, Chi Yen.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 41, No. 12, 01.12.2002, p. 7441-7446.

Research output: Contribution to journalArticle

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