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Femtosecond laser ablation of gallium arsenide investigated with time-of-flight mass spectroscopy (1998)

Cavalleri, A.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 72 (1998), S. 2385-2387

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: We have investigated femtosecond laser-induced ablation of gallium arsenide using time-of-flight mass spectroscopy. At the ablation threshold, we estimated surface temperatures on the order of 3500 K. We observed a clear thresholdlike effect in the number of detected particles and with increasing fluence free flight desorption transforms into a collisional expansion process. Above the ablation threshold, the behavior of gallium particles can be quantitatively described through Knudsen-layer theory. © 1998 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.121364

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