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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 23 — Nov. 8, 2010
  • pp: 24307–24315

Sub-cycle strong-field interferometry

Christian Ott, Philipp Raith, and Thomas Pfeifer  »View Author Affiliations

Optics Express, Vol. 18, Issue 23, pp. 24307-24315 (2010)

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A nonlinear interferometry scheme is described theoretically to induce and resolve electron wavefunction beating on time scales shorter than the optical cycle of the time-delayed pump and probe pulses. By employing two moderately intense few-cycle laser fields with a stable carrier-envelope phase, a large range of the entire electronic level structure of a quantum system can be retrieved. In contrast to single-photon excitation schemes, the retrieved electronic states include levels that are both dipole-and non-dipole-accessible from the ground electronic state. The results show that strong-field interferometry can reveal both high-resolution and broad-band spectral information at the same time with important consequences for quantum-beat spectroscopy on attosecond time scales.

© 2010 Optical Society of America

OCIS Codes
(270.1670) Quantum optics : Coherent optical effects
(300.6420) Spectroscopy : Spectroscopy, nonlinear

ToC Category:

Original Manuscript: August 23, 2010
Revised Manuscript: September 30, 2010
Manuscript Accepted: October 23, 2010
Published: November 5, 2010

Christian Ott, Philipp Raith, and Thomas Pfeifer, "Sub-cycle strong-field interferometry," Opt. Express 18, 24307-24315 (2010)

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