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Chin. Phys. B, 2011, Vol. 20(2): 024210    DOI: 10.1088/1674-1056/20/2/024210
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Thermal characteristics of double-layer thin film target ablated by femtosecond laser pulses

Gao Xun, Song Xiao-Wei, Lin Jing-Quan
School of Science, Changchun University of Science and Technology, Changchun 130022, China
Abstract  Thermal characteristics of tightly-contacted copper–gold double-layer thin film target under ablation of femtosecond laser pulses are investigated by using a two-temperature theoretical model. Numerical simulation shows that electron heat flux varies significantly on the boundary of copper–gold film with different maximal electron temperature of 1.15×103 K at 5 ps after ablating laser pulse in gold and copper films, which can reach a balance around 12.6 ps and 8.2 ps for a single and double pulse ablation, respectively, and in the meantime, the lattice temperature difference crossing the gold–copper interface is only about 0.04×103 K at the same time scale. It is also found that electron–lattice heat relaxation time increases linearly with laser fluence in both single and double pulse ablation, and a sudden change of the relaxation time appears after the laser energy density exceeds the ablation threshold.
Keywords:  femtosecond laser ablation      pulse train      two-temperature model     
Received:  01 August 2010      Published:  15 February 2011
PACS:  42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)  
  44.20.+b (Boundary layer heat flow)  
  65.40.De (Thermal expansion; thermomechanical effects)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 60978014), the Natural Science Foundation of Jilin Province (Grant No. 20090523) and the Educational Commission of Jilin Province (Grant No. [2008]297).

Cite this article: 

Gao Xun, Song Xiao-Wei, Lin Jing-Quan Thermal characteristics of double-layer thin film target ablated by femtosecond laser pulses 2011 Chin. Phys. B 20 024210

[1] Vorobyev A Y, Makin V S and Guo C L 2009 Phys. Rev. Lett. 102 234301
[2] Yamashita Y, Yokomine T, Ebara S and Shimizu A 2006 Int. J. Thermophys. 27 627
[3] Nedialkov N N, Imamova S E and Atanasov P A 2004 J. Phys. D: Appl. Phys. 37 638
[4] Vorobyev A Y and Guo C L 2005 Phys. Rev. B 72 195422
[5] Kim J and Na S 2007 Opt. & Laser Technol. 39 1443
[6] Liu Y Q, Zhang J and Liang W X 2005 Chin. Phys. 14 1671
[7] Zhang H Y and Wu S G 2007 Acta Phys. Sin. 56 5314 (in Chinese)
[8] Anisimov S I, Kapeliovich B L and Sov T L 1974 Phys. JETP 39 375
[9] Sim H S, Lee S H and Lee J S 2007 J. Mech. Sci. Technol. 21 1847
[10] Wang H J, Dai W Z and Melnik R 2006 Int. J. Thermal Sci. 45 1179
[11] Dai W Z and Niu T C 2008 Nonlinear Analysis: Hybrid System 2 121
[12] Han Z H, Zhou C H, Dai E W and Xie J 2008 Opt. Commun. 281 4723
[13] Yang J J, Liu W W and Zhu X N 2007 Chin. Phys. 16 2003
[14] Qiu T Q and Tien C L 1992 Int. J. Heat Mass Transfer 35 719
[15] Nolte S, Momma C, Jacobs H and T"unnermann A 1997 J. Opt. Soc. Am. B 14 2716
[16] Sch"afer C and Urbassek H M 2002 Phys. Rev. B 66 115404
[17] Balasubramni T, Kim S H and Jeong S H 2009 Appl. Surf. Sci. 255 9601
[18] Christensen B H, Vestentoft K and Balling P 2007 Appl. Surf. Sci. 253 6347
[19] Gray D E 1972 American Institute of Physics Handbook 3rd edn. (New York: McGraw-Hill)
[20] Jensen M J, Hasegawa T, Bollinger J J and Dubin D H E 2005 Phys. Rev. Lett. 94 025001
[21] Povarnitsyn M E, Khishchenko K V and Levashov P R 2009 Appl. Surf. Sci. 255 5120
[22] Colombier J P, Combis P, Rosenfeld A, Hertel I V, Audouard E and Stoian R 2006 Phys. Rev. B 74 224106 endfootnotesize
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