Laser controlled deposition of metal microstructures via nondiffracting Bessel beam illumination

Rafael Drampyan; Nikita Leonov; Tigran Vartanyan

doi:10.1117/12.2227763

19 April 2016 Laser controlled deposition of metal microstructures via nondiffracting Bessel beam illumination

Rafael Drampyan, Nikita Leonov, Tigran Vartanyan

Proceedings Volume 9884, Nanophotonics VI; 98841J (2016) https://doi.org/10.1117/12.2227763
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

The technique of the laser controlled deposition of sodium and rubidium deposits on the sapphire substrate is presented. The metals were deposited on the clean sapphire substrate from the vapor phase contained in the evacuated and sealed cell. We use an axicon to produce a non-diffracting Bessel beam out of the beam got from the cw diode laser with 200 mW power at the wavelength of 532 nm. After 30 minutes of the laser-controlled deposition the substrates were examined in the optical microscope. The obtained metal deposits form the sharp-cut circles with the pitch of 10 μm, coincident with the tens of dark rings of the Bessel beam. Reduction of the laser power leads to the build up of the continuous metal film over the whole substrate.

Citation Download Citation

Rafael Drampyan, Nikita Leonov, and Tigran Vartanyan "Laser controlled deposition of metal microstructures via nondiffracting Bessel beam illumination", Proc. SPIE 9884, Nanophotonics VI, 98841J (19 April 2016); https://doi.org/10.1117/12.2227763

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