Effect of Laser Induced Periodic Surface Structures on Infrared Emission Characteristics of Copper Films

Tianyu Wang; Jintian Bian; Xin Li; Hui Kong; Xiaoquan Sun

doi:10.3788/CJL202148.0401017

Chinese Journal of Lasers, Volume. 48, Issue 4, 0401017(2021)

Effect of Laser Induced Periodic Surface Structures on Infrared Emission Characteristics of Copper Films

Tianyu Wang^1,2, Jintian Bian^1,2、*, Xin Li^1,2、*, Hui Kong^1,2, and Xiaoquan Sun^1,2、*

¹State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei, Anhui 230037, China

²Anhui Key Laboratory of Advanced Laser Technology, National University of Defense Technology, Hefei, Anhui 230037, China

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Figures & Tables(8)

Fig. 1. Spectral emissivity curve of copper at room temperature

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Fig. 2. Double temperature equation curves of copper under single femtosecond pulse

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Fig. 3. Schematic of experimental apparatus for LIPSS preparation

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Fig. 4. Schematic of LSFL of copper film

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Fig. 5. Simulation model of copper film. (a) Schematic cross section; (b) three-dimensional model diagram

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Fig. 6. Schematic of electric field distribution of LSFL of copper film. (a) Reflected electric field; (b) transmitted electric field

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Fig. 7. Emissivity of LSFL of copper film

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Table 1. Relevant parameters of copper
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Table 1. Relevant parameters of copper
Parameter Value
C_l/(J·K^-1·m^-3) 3.5×10⁶
G/ (W·K^-1·m^-3) 1.02×10⁷
k_e/(W·K^-1·m^-1) 401
n_e/m^-3 8.5×10²⁸
T_F/K 8.12×10⁴
Melting point(T_m)/K 1357.8
k_B/(J·K^-1) 1.380649 × 10^-23
Absorption depth(η)/nm 14.2
E_Cu 0.08

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Tianyu Wang, Jintian Bian, Xin Li, Hui Kong, Xiaoquan Sun. Effect of Laser Induced Periodic Surface Structures on Infrared Emission Characteristics of Copper Films[J]. Chinese Journal of Lasers, 2021, 48(4): 0401017

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