Stability enhancement of super-RENS high temperature readout signal

Jooho Kim; Jaecheol Bae; Inoh Hwang; Yongwoon Lee; Nakhyun Kim; Chongsam Chung; Insik Park; Takayuki Shima; Takashi Nakano; Junji Tominaga

doi:10.1117/12.738934

11 July 2007 Stability enhancement of super-RENS high temperature readout signal

Jooho Kim, Jaecheol Bae, Inoh Hwang, Yongwoon Lee, Nakhyun Kim, Chongsam Chung, Insik Park, Takayuki Shima, Takashi Nakano, Junji Tominaga

Author Affiliations +

Proceedings Volume 6620, Optical Data Storage 2007; 662013 (2007) https://doi.org/10.1117/12.738934
Event: Optical Data Storage 2007, 2007, Portland, OR, United States

Abstract

We report the readout stability improvement results of super-resolution near field structure (Super-RENS) write-once read-many (WORM) disk at a blue laser optical system. (Laser wavelength 405nm, numerical aperture 0.85) By using diffusion barrier structure (GeSbTe sandwiched by GeN) and high transition temperature recording material (BaTiO₃), material diffusion of phase change layer and recording mark degradation were greatly improved during high power (Pr=2.0mW) readout process up to 1X10⁵ times.

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Jooho Kim, Jaecheol Bae, Inoh Hwang, Yongwoon Lee, Nakhyun Kim, Chongsam Chung, Insik Park, Takayuki Shima, Takashi Nakano, and Junji Tominaga "Stability enhancement of super-RENS high temperature readout signal", Proc. SPIE 6620, Optical Data Storage 2007, 662013 (11 July 2007); https://doi.org/10.1117/12.738934

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