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

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

Research output: Contribution to journalArticle

111 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1000-1002
Number of pages3
JournalApplied Physics Letters
Volume76
Issue number8
Publication statusPublished - 2000 Feb 21
Externally publishedYes

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recording
photons
photoluminescence
yield point
numerical aperture
submerging
shot
readout
oils
irradiation
pulses
wavelengths
lasers

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Recording by microexplosion and two-photon reading of three-dimensional optical memory in polymethylmethacrylate films. / Yamasaki, K.; Juodkazis, S.; Watanabe, M.; Sun, H. B.; Matsuo, Shigeki; Misawa, H.

In: Applied Physics Letters, Vol. 76, No. 8, 21.02.2000, p. 1000-1002.

Research output: Contribution to journalArticle

Yamasaki, K, Juodkazis, S, Watanabe, M, Sun, HB, Matsuo, S & Misawa, H 2000, 'Recording by microexplosion and two-photon reading of three-dimensional optical memory in polymethylmethacrylate films', Applied Physics Letters, vol. 76, no. 8, pp. 1000-1002.
Yamasaki, K. ; Juodkazis, S. ; Watanabe, M. ; Sun, H. B. ; Matsuo, Shigeki ; Misawa, H. / Recording by microexplosion and two-photon reading of three-dimensional optical memory in polymethylmethacrylate films. In: Applied Physics Letters. 2000 ; Vol. 76, No. 8. pp. 1000-1002.
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