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Proceedings Paper

Ultrafast thermal excitation behaviors of Au films irradiated by polarization-shaped femtosecond laser
Author(s): Yan Ou; Yu Lu; Guangqing Du; Feng Chen; Qing Yang; Yanmin Wu
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Paper Abstract

We theoretically investigated the ultrafast thermal excitation behaviors on Au films surface irradiated by polarization-shaped femtosecond laser. The spatio-temporal dynamics of temperature evolution in Au film with polarization-shaped femtosecond laser excitation are obtained based on Finite Element Method (FEM). It is revealed that the phonon temperature fields can be flexibly adjusted by optimizing the polarization state combinations of polarization-shaped double femtosecond laser pulses. The results are attributed to pulse synthetic effect, which closely depends on the polarization state combinations of double femtosecond laser pulses. The study provides the basic for understanding of the thermal excitation dynamics for optimizing laser micro and nano-fabrications via tailoring the polarization state of temporally shaped femtosecond laser.

Paper Details

Date Published: 19 February 2015
PDF: 12 pages
Proc. SPIE 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014), 944918 (19 February 2015); doi: 10.1117/12.2075513
Show Author Affiliations
Yan Ou, Xi'an Jiaotong Univ. (China)
Yu Lu, Xi'an Jiaotong Univ. (China)
Guangqing Du, Xi'an Jiaotong Univ. (China)
Feng Chen, Xi'an Jiaotong Univ. (China)
Qing Yang, Xi'an Jiaotong Univ. (China)
Yanmin Wu, Xi'an Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 9449:
The International Conference on Photonics and Optical Engineering (icPOE 2014)
Ailing Tian; Anand Asundi; Weiguo Liu; Chunmin Zhang, Editor(s)

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