Femtosecond laser induced PL change in Sm-doped sodium borate glass and 3D optical memory

Seungphil Lee, Myeongkyu Lee, Kisoo Lim

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We report on a femtosecond laser-induced photoluminescence (PL) change in Sm-doped sodium-borate glass and its potential application to three-dimensional optical memory. Irradiation with a femtosecond pulsed laser (800 nm, 1 kHz, 100 fs) induced a new PL peak near 682 nm, resulting from the photoreduction of Sm ions from Sm3+ to Sm2+. This makes it possible to readout the stored data by detecting the new PL peak as a signal. Multilayer patterns of various dot sizes and interlayer spacings were fabricated by femtosecond pulsed laser. These patterns were read out by a fluorescent confocal microscope which detected the emission at 682 nm as a signal. Here we discuss the feasibility of 3D optical memory by use of PL change in Sm-doped sodium borate glass.

Original languageEnglish
Pages (from-to)990-992
Number of pages3
JournalJournal of Luminescence
Volume122-123
Issue number1-2
DOIs
Publication statusPublished - 2007 Jan 1

Fingerprint

Optical data storage
Ultrashort pulses
borates
Glass
Photoluminescence
Lasers
sodium
photoluminescence
glass
Pulsed lasers
lasers
pulsed lasers
photochemical reactions
Ions
readout
interlayers
Multilayers
Microscopes
microscopes
spacing

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Cite this

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Femtosecond laser induced PL change in Sm-doped sodium borate glass and 3D optical memory. / Lee, Seungphil; Lee, Myeongkyu; Lim, Kisoo.

In: Journal of Luminescence, Vol. 122-123, No. 1-2, 01.01.2007, p. 990-992.

Research output: Contribution to journalArticle

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