Point-by-point inscription of 250-nm-period structure in bulk fused silica by tightly-focused femtosecond UV pulses: experiment and numerical modeling

David N. Nikogosyan, Mykhaylo Dubov, Holger Schmitz, Vladimir Mezentsev, Ian Bennion, Padraig Bolger, Anatoly Zayats

Research output: Contribution to journalArticlepeer-review

Abstract

By conducting point-by-point inscription in a continuously moving slab of a pure fused silica at the optimal depth (170 μm depth below the surface), we have fabricated a 250-nm-period nanostructure with 30 nJ, 300 fs, 1 kHz pulses from frequency-tripled Ti:sapphire laser. This is the smallest value for the inscribed period yet reported, and has been achieved with radical improvement in the quality of the inscribed nanostructures in comparison with previous reports. The performed numerical modeling confirms the obtained experimental results.
Original languageEnglish
Pages (from-to)169-177
Number of pages9
JournalCentral European Journal of Physics
Volume8
Issue number2
DOIs
Publication statusPublished - 10 Apr 2010

Bibliographical note

The original publication is available at www.springerlink.com © Versita Warsaw and Springer-Verlag Berlin Heidelberg.

Keywords

  • femtosecond UV laser
  • microfabrication
  • fused silica
  • nanostructure

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