Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Ultrafast amorphization in Ge 10 Sb 2 Te 13 thin film induced by single femtosecond laser pulse

Not Accessible

Your library or personal account may give you access

Abstract

We demonstrate amorphization in a Ge10Sb2Te13 (GST) thin film through a nonthermal process by femtosecond electronic excitation. Amorphous recording marks were formed by irradiation with a single femtosecond pulse, and were confirmed to be recrystallized by laser thermal annealing. Scanning electron microscope observations revealed that amorphization occurred below the melting temperature. We performed femtosecond pump–probe measurements to investigate the amorphization dynamics of a GST thin film. We found that the reflectivity dropped abruptly within 500fs after excitation by a single pulse and that a small change in the reflectivity occurred within 5ps of this drop.

© 2010 Optical Society of America

Full Article  |  PDF Article
More Like This
Ultrafast and low-power crystallization in Ge1Sb2Te4 and Ge1Sb4Te7 thin films using femtosecond laser pulses

Smriti Sahu, Rituraj Sharma, K. V. Adarsh, and Anbarasu Manivannan
Appl. Opt. 57(2) 178-184 (2018)

Crystallization and amorphization studies of a Ge2Sb2.3Te5 thin-film sample under pulsed laser irradiation

Pramod K. Khulbe, Xiaodong Xun, and M. Mansuripur
Appl. Opt. 39(14) 2359-2366 (2000)

Laser-induced phase transitions of Ge2Sb2Te5 thin films used in optical and electronic data storage and in thermal lithography

Cheng Hung Chu, Chiun Da Shiue, Hsuen Wei Cheng, Ming Lun Tseng, Hai-Pang Chiang, Masud Mansuripur, and Din Ping Tsai
Opt. Express 18(17) 18383-18393 (2010)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved