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Optics Letters

Optics Letters


  • Vol. 25, Iss. 17 — Sep. 1, 2000
  • pp: 1279–1281

High-density speed optical near-field recording reading with a pyramidal silicon probe on a contact slider

Takashi Yatsui, Motonobu Kourogi, Kazuo Tsutsui, Motoichi Ohtsu, and Jun-ichi Takahashi  »View Author Affiliations

Optics Letters, Vol. 25, Issue 17, pp. 1279-1281 (2000)

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We demonstrate high-density–speed phase-change recording–reading by use of a pyramidal silicon structure. The contact slider, which has a pyramidal silicon probe array with height dispersion of less than 10 nm, is fabricated by use of a silicon-on-insulator wafer. By illumination with a laser beam (λ = 830 nm) of one element of the probe array, we find the shortest phase-change mark length and the carrier-to-noise ratio to be 110 nm and 10 dB, respectively, corresponding to a data transmission rate of 2.0 MHz. This rate can be increased to 200 MHz by use of all elements of the probe array.

© 2000 Optical Society of America

OCIS Codes
(210.0210) Optical data storage : Optical data storage
(220.4000) Optical design and fabrication : Microstructure fabrication

Takashi Yatsui, Motonobu Kourogi, Kazuo Tsutsui, Motoichi Ohtsu, and Jun-ichi Takahashi, "High-density speed optical near-field recording reading with a pyramidal silicon probe on a contact slider," Opt. Lett. 25, 1279-1281 (2000)

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