Abstract
We fabricated a planar aperture–mounted (PAM) slider by use of a focused ion beam to demonstrate fast data acquisition for near-field optical data storage. The aperture was formed upon the Ti-coated air-bearing surface of the slider and was directly illuminated with a laser beam spot by use of an objective lens . The light transmitted through the aperture was modulated by a Ti-coated disk with 200- and 400-nm-wide line-and-space (L&S) patterns engraved by electron-beam lithography. The optical throughput of the taperless aperture was greater than 0.02. By use of the PAM slider, 400- and 200-nm L&S signals were detected at linear velocities of 6 and , respectively, corresponding to a data-transfer rate of 7.5 MHz.
© 2000 Optical Society of America
Full Article | PDF ArticleMore Like This
Takashi Yatsui, Motonobu Kourogi, Kazuo Tsutsui, Motoichi Ohtsu, and Jun-ichi Takahashi
Opt. Lett. 25(17) 1279-1281 (2000)
Hiroshi Yoshikawa, Toshifumi Ohkubo, Kenji Fukuzawa, Laurence Bouet, and Manabu Yamamoto
Appl. Opt. 38(5) 863-868 (1999)
Myung Bok Lee, Motonobu Kourogi, Takashi Yatsui, Kazuo Tsutsui, Nobufumi Atoda, and Motoichi Ohtsu
Appl. Opt. 38(16) 3566-3571 (1999)