Many high-field/attosecond and ultrafast electron diffraction/microscopy experiments on condensed matter require samples in the form of free-standing membranes with nanometer thickness. Here, we report the measurement of the laser-induced damage threshold of 11 different free-standing nanometer-thin membranes of metallic, semiconducting, and insulating materials for 1-ps, 1030-nm laser pulses at 50 kHz repetition rate. We find a laser damage threshold that is very similar to each corresponding bulk material. The measurements also reveal a band gap dependence of the damage threshold as a consequence of different ionization rates. These results establish the suitability of free-standing nanometer membranes for high-field pump-probe experiments.
Laser damage of free-standing nanometer membranes
Yuya Morimoto, Iännis Roland, Stéphanie Rennesson, Fabrice Semond, Philippe Boucaud, Peter Baum; Laser damage of free-standing nanometer membranes. J. Appl. Phys. 7 December 2017; 122 (21): 215303. https://doi.org/10.1063/1.5004081
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