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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 14 — Jul. 15, 2013
  • pp: 17060–17065

LiF, an underestimated supercontinuum source in femtosecond transient absorption spectroscopy

Jörg Kohl-Landgraf, Jan-Eric Nimsch, and Josef Wachtveitl  »View Author Affiliations

Optics Express, Vol. 21, Issue 14, pp. 17060-17065 (2013)

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We present supercontinua generated in LiF and CaF2 revealing that LiF is advantageous especially in the near UV region since it pushes the cut-off wavelength about 17 nm towards lower wavelengths and the occurrence of color centers, which has been considered as a drawback up to now, is not a limitation for its applicability in femtosecond transient absorption spectroscopy. Even though the color centers occur within a short time of illumination, they do not influence the supercontinuum generation significantly and they can furthermore, if desired, be eliminated from the substrate simply by heating. Thus LiF is a promising substrate for broad band measurements in the UV/vis range.

© 2013 OSA

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(320.7150) Ultrafast optics : Ultrafast spectroscopy
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Ultrafast Optics

Original Manuscript: April 10, 2013
Revised Manuscript: May 16, 2013
Manuscript Accepted: May 16, 2013
Published: July 10, 2013

Jörg Kohl-Landgraf, Jan-Eric Nimsch, and Josef Wachtveitl, "LiF, an underestimated supercontinuum source in femtosecond transient absorption spectroscopy," Opt. Express 21, 17060-17065 (2013)

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