Open AccessРазрушение пленки золота при моделировании процесса лазерной биопечати
Author(s) -
В.С. Жигарьков,
Н.В. Минаев,
В.И. Юсупов
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.12.51059.18575
Subject(s) - materials science , substrate (aquarium) , fluence , layer (electronics) , laser , optoelectronics , thin film , nanosecond , acceptor , body orifice , nanotechnology , optics , ecology , oceanography , physics , condensed matter physics , biology , geology
Laser printing with gel microdroplets is a promising method for biotechnology and medicine. During printing, a nanosecond laser pulse is absorbed in a thin metal film of a donor substrate with a covered gel layer, which leads to its heating, partial destruction of the film, and transfer of a gel microdroplet to the acceptor substrate. In this work, the dynamics of destruction of a film with a thickness of 50 nm is studied. It is shown that when threshold is exceeded, the gold film peels off from the glass plate. A further increase in the laser fluence occurs to the formation of a orifice in the film. The results obtained are of interest for improving the technology of laser bioprinting.