This paper proposes an improved way of providing direct access to the CEP (/spl phi/) in low-energy pulses (nearly 1 /spl mu/J) by using the interference between the second harmonic (SH) and third harmonic (TH) from a solid surface. The interference signals are a superposition of a cos (2/spl phi/)-oscillation and a cos (3/spl phi/)-oscillation. The interference signals between the SH and TH from the surface do not include the constant phase shift caused by the linear dispersion. This makes it is possible to determine the CEP (/spl phi/) directly. In this experiment, the interference signals from the surface are found to exhibit CEP dependence for pulses comprising only a few optical cycles.
Evaluation of carrier-envelope phase fluctuation in amplified pulse by using interference between harmonics generated on solid surface
2005-01-01
151174 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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