The role of self-trapped excitons and defects in the formation of nanogratings in fused silica

Optics Letters
Sören RichterStefan Nolte

Abstract

We investigate the role of self-trapped excitons (STEs) and defects in the formation of femtosecond laser pulse induced nanogratings (NGs) in fused silica. Our experiments reveal strongly enhanced NG formation for pulse separations up to the STE lifetime. In addition, the absorption spectra show that the weaker cumulative action of laser pulses for longer temporal separations is predominantly mediated by dangling-bond-type lattice defects that emerge from decaying STEs.

References

Feb 15, 1987·Physical Review. B, Condensed Matter·J H Stathis, M A Kastner
Feb 15, 1990·Physical Review. B, Condensed Matter·C ItohN Itoh
Jul 25, 1988·Physical Review Letters·T E TsaiE J Friebele
Dec 20, 2003·Physical Review Letters·Yasuhiko ShimotsumaKazuoki Hirao
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Jul 24, 2006·Optics Express·Takayuki TamakiKazuyoshi Itoh
Aug 6, 2007·Optics Express·Dirk WortmannJens Gottmann

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Citations

Dec 1, 2017·Scientific Reports·Andrey OkhrimchukPeter Kazansky
Mar 16, 2016·Optics Letters·Felix ZimmermannStefan Nolte
Aug 18, 2018·Applied Optics·Klaus BergnerAndreas Tünnerman
May 14, 2020·Micromachines·Valdemar StankevičPaulius Gečys

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