We use white-light continuum Z-scan to measure the degenerate two-photon absorption spectrum and associated dispersion of the nonlinear refraction, n/sub 2/, of ZnSe/spl middot/n/sub 2/ changes sign at around 0.7 of the bandgap energy as predicted.
Two-photon absorption and the dispersion of nonlinear refraction using a white-light continuum Z-scan
2005 Quantum Electronics and Laser Science Conference ; 2 ; 785-787 Vol. 2
2005-01-01
434934 byte
Conference paper
Electronic Resource
English
White-light continuum Z-scan measurements
IEEE | 2004
|Refraction and Dispersion in Nonlinear Photonic Crystal Superlattices
British Library Conference Proceedings | 2005
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