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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 34 — Dec. 1, 2006
  • pp: 8577–8585

Time-delay compensated monochromator in the off-plane mount for extreme-ultraviolet ultrashort pulses

Luca Poletto and Paolo Villoresi  »View Author Affiliations

Applied Optics, Vol. 45, Issue 34, pp. 8577-8585 (2006)

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The design of ultrafast monochromators using grazing-incidence gratings in the off-plane mount for the spectral selection of extreme-ultraviolet femtosecond pulses in a broad spectral region is presented. Their application in the selection of high-order laser harmonics is analyzed in detail. The main advantage of the off-plane mount is a much higher efficiency than that of the classical mount. It is shown that two-grating configurations preserve the length of the optical paths of different diffracted rays, maintaining the extremely short time duration of the pulse. Configurations with plane or toroidal gratings are discussed. As a test case, the design of a monochromator for the 17 6 1 nm region with a time compensation better than 1 fs is presented.

© 2006 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(050.1960) Diffraction and gratings : Diffraction theory
(300.6540) Spectroscopy : Spectroscopy, ultraviolet
(320.0320) Ultrafast optics : Ultrafast optics

ToC Category:
Diffraction and Gratings

Original Manuscript: April 19, 2006
Revised Manuscript: June 28, 2006
Manuscript Accepted: July 6, 2006

Luca Poletto and Paolo Villoresi, "Time-delay compensated monochromator in the off-plane mount for extreme-ultraviolet ultrashort pulses," Appl. Opt. 45, 8577-8585 (2006)

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