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Camouflage third‐harmonic generation in the nonperturbative few‐cycle regime
Author(s) -
Tritschler T.,
Mücke O. D.,
Morgner U.,
Kärtner F. X.,
Wegener M.
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200303190
Subject(s) - laser , physics , offset (computer science) , camouflage , optics , sapphire , high harmonic generation , photon , second harmonic generation , harmonics , optoelectronics , quantum mechanics , computer science , voltage , artificial intelligence , programming language
Focusing 5 fs optical pulses, with a Rabi energy comparable to the carrier photon energy, derived from a mode‐locked Ti:sapphire laser oscillator onto ZnO crystals, leads to large contributions in the emitted light, which depend on the carrier‐envelope offset frequency of the laser oscillator. Moreover, we discuss that an additional contribution at twice the carrier‐envelope offset frequency is due to camouflage third‐harmonic generation – a process, which looks like second‐harmonic generation in an inversion symmetric medium at first sight.