Abstract
To achieve high bit densities (> 10 GB/cm3) in optical memory, we accomplished a three-dimensional optical data storage system using vitreous silica as the recording material. We succeeded in high-density optical recording by focusing pulsed laser beams of 532 nm (full width at half maximum [FWHM] 30 ps) and 400 nm (150 fs). A recording density of 72.9 GB/cm3 was achieved, which corresponded to that of 100 compact disks, on a glass plate of (2 × 2) cm2 and 2.2 mm thickness. We found that the optical damage of silica occurs within 400 ps after irradiation by a single pulse for 30 ps at 532 nm. Three photoluminescence bands were found in the photomodified silica at 283 nm, 468 nm and 558 nm. All the three bands showed similar photoluminescence excitation spectra, i.e. a peak related to oxygen vacancy absorption at 250 nm.
| Original language | English |
|---|---|
| Journal | Japanese Journal of Applied Physics, Part 2: Letters |
| Volume | 37 |
| Issue number | 12 SUPPL. B |
| Publication status | Published - 1998 Dec 15 |
| Externally published | Yes |
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Keywords
- Defects in glass
- Femtosecond laser fabrication
- Optical properties
- Photoluminescence
- Picosecond laser fabrication
- Three-dimensional optical data storage
- Vitreous silica
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Three-dimensional optical data storage in vitreous silica. / Watanabe, Mitsuru; Sun, Hongbo; Juodkazis, Saulius; Takahashi, Toshimasa; Matsuo, Shigeki; Suzuki, Yoshihisa; Nishii, Jyunji; Misawa, Hiroaki.
In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 37, No. 12 SUPPL. B, 15.12.1998.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Three-dimensional optical data storage in vitreous silica
AU - Watanabe, Mitsuru
AU - Sun, Hongbo
AU - Juodkazis, Saulius
AU - Takahashi, Toshimasa
AU - Matsuo, Shigeki
AU - Suzuki, Yoshihisa
AU - Nishii, Jyunji
AU - Misawa, Hiroaki
PY - 1998/12/15
Y1 - 1998/12/15
N2 - To achieve high bit densities (> 10 GB/cm3) in optical memory, we accomplished a three-dimensional optical data storage system using vitreous silica as the recording material. We succeeded in high-density optical recording by focusing pulsed laser beams of 532 nm (full width at half maximum [FWHM] 30 ps) and 400 nm (150 fs). A recording density of 72.9 GB/cm3 was achieved, which corresponded to that of 100 compact disks, on a glass plate of (2 × 2) cm2 and 2.2 mm thickness. We found that the optical damage of silica occurs within 400 ps after irradiation by a single pulse for 30 ps at 532 nm. Three photoluminescence bands were found in the photomodified silica at 283 nm, 468 nm and 558 nm. All the three bands showed similar photoluminescence excitation spectra, i.e. a peak related to oxygen vacancy absorption at 250 nm.
AB - To achieve high bit densities (> 10 GB/cm3) in optical memory, we accomplished a three-dimensional optical data storage system using vitreous silica as the recording material. We succeeded in high-density optical recording by focusing pulsed laser beams of 532 nm (full width at half maximum [FWHM] 30 ps) and 400 nm (150 fs). A recording density of 72.9 GB/cm3 was achieved, which corresponded to that of 100 compact disks, on a glass plate of (2 × 2) cm2 and 2.2 mm thickness. We found that the optical damage of silica occurs within 400 ps after irradiation by a single pulse for 30 ps at 532 nm. Three photoluminescence bands were found in the photomodified silica at 283 nm, 468 nm and 558 nm. All the three bands showed similar photoluminescence excitation spectra, i.e. a peak related to oxygen vacancy absorption at 250 nm.
KW - Defects in glass
KW - Femtosecond laser fabrication
KW - Optical properties
KW - Photoluminescence
KW - Picosecond laser fabrication
KW - Three-dimensional optical data storage
KW - Vitreous silica
UR - http://www.scopus.com/inward/record.url?scp=0032294598&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032294598&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0032294598
VL - 37
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 12 SUPPL. B
ER -