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Applied Optics

Applied Optics


  • Vol. 40, Iss. 6 — Feb. 20, 2001
  • pp: 938–940

High-density optical data storage with one-photon and two-photon near-field fluorescence microscopy

Yuzhen Shen, Jacek Swiatkiewicz, Daniel Jakubczyk, Faming Xu, Paras N. Prasad, Richard A. Vaia, and Bruce A. Reinhardt  »View Author Affiliations

Applied Optics, Vol. 40, Issue 6, pp. 938-940 (2001)

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A spatially localized photochemical reaction induced by near-field femtosecond laser pulses is demonstrated on a nanometer scale and used for high-density optical data storage. Recorded domains down to 120 and 70 nm are obtained with one-photon and two-photon excitation, respectively. It is shown that the local-field confinement that is due to the quadratic dependence of two-photon excitation on light intensity has the potential to increase the near-field optical storage density.

© 2001 Optical Society of America

OCIS Codes
(180.2520) Microscopy : Fluorescence microscopy
(210.0210) Optical data storage : Optical data storage
(350.3450) Other areas of optics : Laser-induced chemistry

Original Manuscript: April 17, 2000
Published: February 20, 2001

Yuzhen Shen, Jacek Swiatkiewicz, Daniel Jakubczyk, Faming Xu, Paras N. Prasad, Richard A. Vaia, and Bruce A. Reinhardt, "High-density optical data storage with one-photon and two-photon near-field fluorescence microscopy," Appl. Opt. 40, 938-940 (2001)

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