Transmission and photoluminescence images of three-dimensional memory in vitreous silica

Mitsuru Watanabe, Saulius Juodkazis, Hong Bo Sun, Shigeki Matsuo, Hiroaki Misawa, Masafumi Miwa, Reizo Kaneko

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

We demonstrate separate readouts of three-dimensional memory by (i) transmission imaging using a conventional optical microscope and (ii) photoluminescence (PL) of the bits created by inducing optical damage within the vitreous silica. Recording was done by tightly focused (objective ×100, numerical aperture 1.3) single shot irradiation of 120 fs duration pulses at a 400 nm wavelength. For the readout, a broadband of PL at 470-600 nm was excited by 400 nm, 120 fs irradiation with pulse energy smaller by a factor of 106 compared with that for the recording. We found an erasing of the PL after 400°C annealing, while the readability of the bits by the transmission was sustained. This shows the potential for two-bit information recording per single bit by means of separate readout procedures.

Original languageEnglish
Pages (from-to)3957-3959
Number of pages3
JournalApplied Physics Letters
Volume74
Issue number26
Publication statusPublished - 1999 Jun 28
Externally publishedYes

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silicon dioxide
photoluminescence
readout
recording
irradiation
numerical aperture
optical microscopes
shot
pulse duration
broadband
damage
annealing
pulses
wavelengths
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Watanabe, M., Juodkazis, S., Sun, H. B., Matsuo, S., Misawa, H., Miwa, M., & Kaneko, R. (1999). Transmission and photoluminescence images of three-dimensional memory in vitreous silica. Applied Physics Letters, 74(26), 3957-3959.

Transmission and photoluminescence images of three-dimensional memory in vitreous silica. / Watanabe, Mitsuru; Juodkazis, Saulius; Sun, Hong Bo; Matsuo, Shigeki; Misawa, Hiroaki; Miwa, Masafumi; Kaneko, Reizo.

In: Applied Physics Letters, Vol. 74, No. 26, 28.06.1999, p. 3957-3959.

Research output: Contribution to journalArticle

Watanabe, M, Juodkazis, S, Sun, HB, Matsuo, S, Misawa, H, Miwa, M & Kaneko, R 1999, 'Transmission and photoluminescence images of three-dimensional memory in vitreous silica', Applied Physics Letters, vol. 74, no. 26, pp. 3957-3959.
Watanabe M, Juodkazis S, Sun HB, Matsuo S, Misawa H, Miwa M et al. Transmission and photoluminescence images of three-dimensional memory in vitreous silica. Applied Physics Letters. 1999 Jun 28;74(26):3957-3959.
Watanabe, Mitsuru ; Juodkazis, Saulius ; Sun, Hong Bo ; Matsuo, Shigeki ; Misawa, Hiroaki ; Miwa, Masafumi ; Kaneko, Reizo. / Transmission and photoluminescence images of three-dimensional memory in vitreous silica. In: Applied Physics Letters. 1999 ; Vol. 74, No. 26. pp. 3957-3959.
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