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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 13 — Jun. 18, 2012
  • pp: 13663–13668

Generating few-cycle pulses for nanoscale photoemission easily with an erbium-doped fiber laser

Sebastian Thomas, Ronald Holzwarth, and Peter Hommelhoff  »View Author Affiliations

Optics Express, Vol. 20, Issue 13, pp. 13663-13668 (2012)

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We demonstrate a simple setup capable of generating four-cycle pulses at a center wavelength of 1700nm for nanoscale photoemission. Pulses from an amplified erbium-doped fiber laser are spectrally broadened by propagation through a highly non-linear fiber. Subsequently, we exploit dispersion in two different types of glass to compress the pulses. The pulse length is estimated by measuring an interferometric autocorrelation trace and comparing it to a numerical simulation. We demonstrate highly non-linear photoemission of electrons from a nanometric tungsten tip in a hitherto unexplored pulse parameter range.

© 2012 OSA

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(140.3500) Lasers and laser optics : Lasers, erbium
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.5520) Ultrafast optics : Pulse compression
(320.6629) Ultrafast optics : Supercontinuum generation
(240.6675) Optics at surfaces : Surface photoemission and photoelectron spectroscopy

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 21, 2012
Revised Manuscript: April 27, 2012
Manuscript Accepted: April 29, 2012
Published: June 4, 2012

Sebastian Thomas, Ronald Holzwarth, and Peter Hommelhoff, "Generating few-cycle pulses for nanoscale photoemission easily with an erbium-doped fiber laser," Opt. Express 20, 13663-13668 (2012)

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