Single-pulse ultraviolet laser recording of periodically poled structures in polymer thin films

Okihiro Sugihara, Makoto Nakanishi, Yanlong Che, Chikara Egami, Yoshimasa Kawata, Naomichi Okamoto

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

A simple fabrication technique for nonlinear polymeric optical waveguide patterns is introduced based on the two-beam interference method. We determined that the second-order nonlinearity of poled polymer films is erased by single-pulse ultraviolet (UV) laser irradiation. The erasure mechanism for secondorder nonlinearity is discussed. To form a periodic structure in an optical polymer waveguide, two types of optical configuration of two-beam interference were arranged, and a single-pulse UV laser was exposed directly onto poled films. We prove that this method provides a simple way to fabricate volume-type and ridge-type periodically poled structures, i.e., x(2)gratings, from the submicrometer to the millimeter range.

Original languageEnglish
Pages (from-to)5632-5637
Number of pages6
JournalApplied optics
Volume39
Issue number30
DOIs
Publication statusPublished - 2000 Oct 20

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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