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

doi:10.1063/1.124235

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 journal › Article › peer-review

58 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 language	English
Pages (from-to)	3957-3959
Number of pages	3
Journal	Applied Physics Letters
Volume	74
Issue number	26
DOIs	https://doi.org/10.1063/1.124235
Publication status	Published - 1999 Jun 28
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.124235

Fingerprint Dive into the research topics of 'Transmission and photoluminescence images of three-dimensional memory in vitreous silica'. Together they form a unique fingerprint.

Cite this

@article{d71952d859a9418c8b52e1e8ddcbe40b,

title = "Transmission and photoluminescence images of three-dimensional memory in vitreous silica",

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.",

author = "Mitsuru Watanabe and Saulius Juodkazis and Sun, {Hong Bo} and Shigeki Matsuo and Hiroaki Misawa and Masafumi Miwa and Reizo Kaneko",

year = "1999",

month = jun,

day = "28",

doi = "10.1063/1.124235",

language = "English",

volume = "74",

pages = "3957--3959",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "26",

}

TY - JOUR

T1 - Transmission and photoluminescence images of three-dimensional memory in vitreous silica

AU - Watanabe, Mitsuru

AU - Juodkazis, Saulius

AU - Sun, Hong Bo

AU - Matsuo, Shigeki

AU - Misawa, Hiroaki

AU - Miwa, Masafumi

AU - Kaneko, Reizo

PY - 1999/6/28

Y1 - 1999/6/28

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0000184425&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000184425&partnerID=8YFLogxK

U2 - 10.1063/1.124235

DO - 10.1063/1.124235

M3 - Article

AN - SCOPUS:0000184425

VL - 74

SP - 3957

EP - 3959

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 26

ER -