Single pulse formation of wide-range period nonlinear grating in urethane-urea copolymer films using ultraviolet laser-interferometric method

Yanlong Che, Okihiro Sugihara, Hisashi Fujimura, Chikara Egami, Naomichi Okamoto, Masaaki Tsuchimori, Osamu Watanabe

Research output: Contribution to journalArticlepeer-review

Abstract

Wide-range period grating formation in urethane-urea copolymer film by use of single-pulse UV laser interferometric method is demonstrated. Two types of fabrication setups are introduced. Minimum grating period of 0.4 μm and maximum of 1.5mm are obtained.

Original languageEnglish
Pages (from-to)139-142
Number of pages4
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume370
DOIs
Publication statusPublished - 2001 Jan 1

Keywords

  • Laser-interferometric method
  • Nonlinear grating
  • Urethane-urea copolymer

ASJC Scopus subject areas

  • Condensed Matter Physics

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