(1) Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow region, 142190, Russia;(2) Research Institute for Complex Testing of Optoelectronic Devices and Systems, Sosnovy Bor, Leningrad region, 188540, Russia
Abstract:
Extended periodic microstructures are formed on a thin gold film by femtosecond laser radiation. The structure length is an order of magnitude larger than the typical size of the irradiated region. The detection of gold photoions generated in the process of the microstructuring ensures a high-sensitivity on-line diagnostics of this phenomenon.