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Wu, C., Crouch, C.H., Zhao, L., Carey, J.E., Younkin, R., Levinson, J.A., Mazur, E., Farrell, R.M., Gothoskar, P. and Karger, A. (2001) Near-unity below-band-gap absorption by microstructured silicon. Applied Physics Letters, 78, 1850-1852. doi:10.1063/1.1358846
has been cited by the following article:
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TITLE:
Thermal response and optical absorptance of metals under femtosecond laser irradiation
AUTHORS:
Anatoliy Y Vorobyev, Chunlei Guo
KEYWORDS:
Femtosecond Laser; Ablation; Residual Energy; Absorptance; Surface Structures
JOURNAL NAME:
Natural Science,
Vol.3 No.6,
June
22,
2011
ABSTRACT: A detailed study on correlation between residual thermal response of a sample and its optical absorptance change due to laser-induced sur-face structural modifications in multi-shot fem-tosecond laser irradiation is performed. Ex-periments reveal an overall enhancement for residual thermal coupling and absorptance in air. Surprisingly, residual thermal coupling in air shows a non-monotonic dependence on pulse number and reaches a minimum value after a certain number of pulses, while these behaviors are not seen in absorptance. In vacuum, how-ever, both suppression and enhancement are seen in residual energy coupling although ab-sorptance is always enhanced. From these ob-servations, it appears that air plasma plays a dominant role in thermal coupling at a relatively low number of applied pulses, while the forma-tion of craters plays a dominant role at a high number of pulses.
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