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Schematic of the experimental setup for THG in BIBO. HWP, half-wave plate at ; CBS, cubic beam splitter at ; DM, dichroic mirror.
Third harmonic output pulse energy and conversion efficiency as functions of total input fundamental and second harmonic pulse energies.
Background-free cross-correlation trace of the generated third harmonic pulses at .
Nonlinear transmission vs pulse intensity in a BIBO sample. The fitted solid lines give the following values: and .
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