Nonlinear photooxidation of diamond surface exposed to femtosecond laser pulses

Авторы: Kononenko V.V., Gololobov V.M., Komlenok M.S., Konov V.I.
Журнал: Laser Physics Letters
Том: 12
Номер: 9
Год издания: 2015
Издательство: Wiley - VCH Verlag GmbH & CO. KGaA
Местоположение издательства: Germany
DOI: 10.1088/1612-2011/12/9/096101
Аннотация: We present an experimental investigation of photooxidation of a diamond surface exposed to femtosecond laser pulses that induce transient high concentrations of free carriers (>10(22)cm(-3)) while the lattice stays cold. Etching rate measurements and a laser-induced plasma study indicated that the rate of desorption of carbon species is proportional to the square of the induced plasma density, which contrasts with previous investigations of diamond etching by nanosecond pulses. We discuss how laser-induced ionization of diamond occurs and how it affects the photoreaction mechanism.
Добавил в систему: Конов Виталий Иванович

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