Phase-change recording/readout with a high-throughput fiber probe

Motonobu Kourogi; Takashi Yatsui; Motoichi Ohtsu

doi:10.1117/12.363843

22 September 1999 Phase-change recording/readout with a high-throughput fiber probe

Motonobu Kourogi, Takashi Yatsui, Motoichi Ohtsu

Proceedings Volume 3791, Near-Field Optics: Physics, Devices, and Information Processing; (1999) https://doi.org/10.1117/12.363843
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

We applied a super-wavelength apertured fiber probe to phase-change recording/readout. Though the fiber probe had a super-wavelength aperture, the spot size at the aperture was as small as 150 nm (< λ/5). An as-deposited SiO₂/AgInTe₂/glass substrate was used as a recording medium. For recording, a laser diode with a pulsewidth of 2 μs (λ=850 nm) was used. By scanning the probe for reading, we obtained resolved images of the recorded dot with a width of 250 nm.

Citation Download Citation

Motonobu Kourogi, Takashi Yatsui, and Motoichi Ohtsu "Phase-change recording/readout with a high-throughput fiber probe", Proc. SPIE 3791, Near-Field Optics: Physics, Devices, and Information Processing, (22 September 1999); https://doi.org/10.1117/12.363843

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