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 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 AmericaFull Article | PDF Article
OSA Recommended Articles
Myung Bok Lee, Motonobu Kourogi, Takashi Yatsui, Kazuo Tsutsui, Nobufumi Atoda, and Motoichi Ohtsu
Appl. Opt. 38(16) 3566-3571 (1999)
Hiroshi Yoshikawa, Yasuko Andoh, Manabu Yamamoto, Kenji Fukuzawa, Toshiaki Tamamura, and Toshifumi Ohkubo
Opt. Lett. 25(1) 67-69 (2000)
Appl. Opt. 40(23) 3922-3931 (2001)