Femtosecond laser amorphization of tellurium
Author(s)
Cheng, Yu-Hsiang; Teitelbaum, Samuel Welch; Gao, Frank Y.; Nelson, Keith Adam
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Polycrystalline tellurium becomes amorphous after irradiation with strong femtosecond pulses. The amorphization is sensitive to the initial temperature but not very sensitive to the temporal profile of the optical excitation. Above the amorphization threshold, single-shot transient reflectivity traces show clear coherent phonon oscillations within 1 ps. These results suggest that amorphization is due to thermal melting rather than nonthermal melting or switching for pump fluences up to the ablation threshold.
Date issued
2018-10Department
Massachusetts Institute of Technology. Department of Chemistry; Massachusetts Institute of Technology. Department of Electrical Engineering and Computer ScienceJournal
Physical Review B
Publisher
American Physical Society
Citation
Cheng, Yu-Hsiang et al. "Femtosecond laser amorphization of tellurium." Physical Review B 98, 13 (October 2018): 134112 © 2018 American Physical Society
Version: Final published version
ISSN
2469-9950
2469-9969