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Proceedings Paper

Photoinduced ultrafast structural dynamics of nanomaterials
Author(s): Jau Tang; Ping Yu; Po-Tse Tai; Sheng-Hsien Lin
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Paper Abstract

We will report our study of photoinduced structural dynamics of nanomaterials of various shapes and sizes by a femtosecond laser heating pulse as detected by time-resolved electron diffraction or transient optical absorption. This work improves the understanding of nanoscale heat transfer and the ultrafast structural dynamics in nanomaterials such as thin films, spheres, prisms, discs, rods, pyramids and cubes. This work allows us to elucidate the roles of dynamic expansion/contraction and the more well-known static linear expansion. Both mechanisms play an important but different role in the observed structural changes at a different time scale. We will present comparative analysis of the experimental measurements for various samples as obtained by our own group and those reported by others.

Paper Details

Date Published: 6 February 2009
PDF: 12 pages
Proc. SPIE 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII, 72140F (6 February 2009); doi: 10.1117/12.806409
Show Author Affiliations
Jau Tang, Research Ctr. for Applied Sciences (Taiwan)
Ping Yu, Research Ctr. for Applied Sciences (Taiwan)
Po-Tse Tai, Research Ctr. for Applied Sciences (Taiwan)
Sheng-Hsien Lin, Institute of Atomic and Molecular Sciences (Taiwan)

Published in SPIE Proceedings Vol. 7214:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII
Kong-Thon Tsen; Jin-Joo Song; Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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