Recording by microexplosion and two-photon reading of three-dimensional optical memory in polymethylmethacrylate films

K. Yamasaki, S. Juodkazis, M. Watanabe, H. B. Sun, S. Matsuo, H. Misawa

研究成果: Article査読

115 被引用数 (Scopus)

抄録

We report the recording of a three-dimensional (3D) pattern in bulk polymethyl metacrylate (PMMA) films by microexplosion induced by a tightly focused (numerical aperture of oil-immersion objective was 1.3) single laser shot. Recording was done by picosecond (ps) single-pulse irradiation at 532 nm and by femtosecond at a 400 nm wavelength. The light-induced damage threshold of PMMA was found at ∼4 MW/cm2 for ps damaging. Readout of the 3D pattern was carried out by the recording of the transmission and the photoluminescence (PL) of bits. We demonstrate the possibility exciting PL of the optically damaged area inside the PMMA by one- and two-photon absorption.

本文言語English
ページ(範囲)1000-1002
ページ数3
ジャーナルApplied Physics Letters
76
8
DOI
出版ステータスPublished - 2000 2 21
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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