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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry van Driel
  • Vol. 27, Iss. 5 — May. 1, 2010
  • pp: 1104–1117

Spectral restoration for femtosecond spectral interferometry with attosecond accuracy

Michael K. Yetzbacher, Trevor L. Courtney, William K. Peters, Katherine A. Kitney, Eric Ryan Smith, and David M. Jonas  »View Author Affiliations

JOSA B, Vol. 27, Issue 5, pp. 1104-1117 (2010)

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A spectral restoration algorithm appropriate for the asymmetric and wavelength-dependent linespread of broadband spectrographs with pixelated detectors is presented. The algorithm’s accuracy was tested on spectra of femtosecond pulse pairs with known delays from an actively stabilized interferometer. Using interleaved atomic line spectra, the spectrograph calibration and effective linespread function were retrieved with sub-pixel accuracy. The spectral restoration by Fourier pseudo-deconvolution with the effective linespread function reduced systematic artifacts and allowed recovery of the phase delay to ±2.4 as over a 2 ps range (±0.7 nm path differences over 0.6 mm). The slope delay was determined to within ±20 as and constant (intercept) phase shifts to within ±0.05 rad; these accuracies are limited by Fourier filtering of charge coupled device and interferometer imperfections.

© 2010 Optical Society of America

OCIS Codes
(100.3020) Image processing : Image reconstruction-restoration
(110.4850) Imaging systems : Optical transfer functions
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(320.7100) Ultrafast optics : Ultrafast measurements

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: November 5, 2009
Revised Manuscript: March 5, 2010
Manuscript Accepted: March 5, 2010
Published: April 29, 2010

Michael K. Yetzbacher, Trevor L. Courtney, William K. Peters, Katherine A. Kitney, Eric Ryan Smith, and David M. Jonas, "Spectral restoration for femtosecond spectral interferometry with attosecond accuracy," J. Opt. Soc. Am. B 27, 1104-1117 (2010)

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