Abstract
The second harmonic generation (SHG) signal converted from the 22 μm input wavelength of free electron laser (FEL) is observed using a non-birefringent CdTe crystal and a birefringent Te crystal. The conversion efficiency of SHG is obtained to be 2.2×10−2 % (~7.3×10−5 %/(MWcm−2)) in CdTe crystal and 0.40% in Te crystal experimentally. The experimental phasematching angle of Te crystal is 9.62°.
© 2001 IEEE
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