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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 12 — Jun. 15, 2014
  • pp: 3654–3657

Phase-retrieval of femtosecond pulses utilizing ω/2ω quantum interference control of electrical currents

Elmar Sternemann, Markus Betz, and Claudia Ruppert  »View Author Affiliations


Optics Letters, Vol. 39, Issue 12, pp. 3654-3657 (2014)
http://dx.doi.org/10.1364/OL.39.003654


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Abstract

We propose and implement a versatile scheme to analyze the phase structure of femtosecond pulses. It relies on second harmonic generation in combination with phase-sensitive χ(3)-current injection driven by two time-delayed portions of the emerging ω/2ω pulse pair. Most strikingly, the group velocity dispersions of both the ω and 2ω components can be unambiguously determined from a simple Fourier transformation of the resulting current interferogram. We test the concept for 45 fs pulses at 1.45 μm and directly compare it to second harmonic frequency resolved optical gating. By choosing appropriate frequency doublers and semiconductor detectors, the scheme is applicable to many wavelength regimes and to pulses as short as a few optical cycles.

© 2014 Optical Society of America

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

ToC Category:
Ultrafast Optics

History
Original Manuscript: April 29, 2014
Revised Manuscript: May 9, 2014
Manuscript Accepted: May 10, 2014
Published: June 12, 2014

Citation
Elmar Sternemann, Markus Betz, and Claudia Ruppert, "Phase-retrieval of femtosecond pulses utilizing ω/2ω quantum interference control of electrical currents," Opt. Lett. 39, 3654-3657 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-12-3654

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