Nonpoled polymeric films doped with blue-window pyrylium salt dyes for second-harmonic-generation devices

Hideki Nakayama, Okihiro Sugihara, Naomichi Okamoto, Hirohisa Saito, Atsushi Mizuno, Ryoka Matsushima

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

We have prepared polymer films doped with novel nonlinear organic ionic materials, pyrylium salt dyes, and have investigated the second-order nonlinear optical properties of these quest-host-type polymer films by changing the counterion and alkyl group derivatives. These films have no absorption in the blue-light region and have second-harmonic-generation activity without electric-field poling. The second-order nonlinearity of the nonpoled-polymer film is constant, with no relaxation at room temperature or at high temperature. We fabricated a second-harmonic-generation device with the nonpoled-polymer film and observed Cerenkov-type phase-matched second-harmonic-generation of a Nd:YAG Laser.

Original languageEnglish
Pages (from-to)477-483
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Volume15
Issue number1
DOIs
Publication statusPublished - 1998 Jan

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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