Behavior of GeSbTeBi phase-change optical recording media under sub-nanosecond pulsed laser irradiation

Kazuo Watabe; Pavel Polynkin; Masud Mansuripur

doi:10.1117/12.557067

9 September 2004 Behavior of GeSbTeBi phase-change optical recording media under sub-nanosecond pulsed laser irradiation

Kazuo Watabe, Pavel Polynkin, Masud Mansuripur

Author Affiliations +

Proceedings Volume 5380, Optical Data Storage 2004; (2004) https://doi.org/10.1117/12.557067
Event: Optical Data Storage Topical Meeting, 2004, Monterey, California, United States

Abstract

Reflectivity variations during phase-transition between amorphous and crystalline states of a Bi-doped GeTe-Sb₂Te₃ pseudo-binary compound film is investigated with sub-nanosecond laser pulses using a pump-and-probe technique. We also use a two-laser static tester to estimate the onset time of crystallization under a 2.0-μs-pulse excitation. Experimental results indicate that the formation of a melt-quenched amorphous mark is completed in about one nanosecond, but crystalline mark formation on an as-deposited amorphous region requires several hundred nanoseconds. Simple arguments based on heat diffusion are used to explain the time scale of amorphization and the threshold for creation of a burned-out hole on the phase-change film.

Citation Download Citation

Kazuo Watabe, Pavel Polynkin, and Masud Mansuripur "Behavior of GeSbTeBi phase-change optical recording media under sub-nanosecond pulsed laser irradiation", Proc. SPIE 5380, Optical Data Storage 2004, (9 September 2004); https://doi.org/10.1117/12.557067

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available