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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 9, Iss. 3 — Sep. 25, 2005
  • pp: 92–94

Femtosecond Laser Application to Optical Memory and Microfluidics

Ik-Bu Sohn, Man-Seop Lee, Jeong-Sik Woo, Sang-Man Lee, and Jeong-Yong Chung  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 9, Issue 3, pp. 92-94 (2005)


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Abstract

We present a novel method for three-dimensional optical memory and microchannel embedded in fused silica glass. Three-dimensional dot patterning with a femtosecond laser pulse and observation with optical microscope are performed. Dot patterns are created by use of a 0.42 N.A. objective to focus 100 fs laser pulses inside the material. We demonstrate data storage with <TEX>$2{\mu}m$</TEX> dot pitch and <TEX>$7{\mu}m$</TEX>layer spacing <TEX>$(36 Gbit/cm^3)$</TEX>. A three-dimensional microchannel acting as microfluidic and microoptical components is directly fabricated inside a silica glass. The optical micrographs of the microchannel are obtained by a digital camera of a microscope.

© 2005 Optical Society of Korea

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(140.3390) Lasers and laser optics : Laser materials processing
(230.1360) Optical devices : Beam splitters
(230.7370) Optical devices : Waveguides

History
Original Manuscript: May 23, 2005
Revised Manuscript: July 21, 2005
Published: September 1, 2005

Citation
Ik-Bu Sohn, Man-Seop Lee, Jeong-Sik Woo, Sang-Man Lee, and Jeong-Yong Chung, "Femtosecond Laser Application to Optical Memory and Microfluidics," J. Opt. Soc. Korea 9, 92-94 (2005)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-9-3-92


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References

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