Single shot laser writing with sub-nanosecond and nanosecond bursts of femtosecond pulses

Andrey Okhrimchuk; Sergey Fedotov; Ivan Glebov; Vladimir Sigaev; Peter Kazansky

doi:10.1038/s41598-017-16850-z

Single shot laser writing with sub-nanosecond and nanosecond bursts of femtosecond pulses

Sci Rep. 2017 Nov 29;7(1):16563. doi: 10.1038/s41598-017-16850-z.

Authors

Andrey Okhrimchuk¹, Sergey Fedotov², Ivan Glebov², Vladimir Sigaev², Peter Kazansky^{2

3}

Affiliations

¹ D. Mendeleyev University of Chemical Technology of Russia, Miusskaya square 9, Moscow, 125047, Russia. a.okhrim@yandex.ru.
² D. Mendeleyev University of Chemical Technology of Russia, Miusskaya square 9, Moscow, 125047, Russia.
³ Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK.

Abstract

A method is proposed for efficient laser modification of fused silica and sapphire by means of a burst of femtosecond pulses having time separation in the range 10-3000 ps. Modification enhancement with the pulse separation increase in the burst was observed on the tens picoseconds scale. It is proposed that accumulated transient tensile strain in the excitation region plays a crucial role in modification by a sub-nanosecond burst.

Publication types

Research Support, Non-U.S. Gov't