Title :
Nonlinear optical properties of monocrystal ZnSe
Author :
Derkowska, B. ; Sahraoui, B. ; Phu, X. Nguyen ; Bala, W.
Author_Institution :
Inst. of Phys., Nicholas Copernicus Univ., Torun, Poland
Abstract :
From nonlinear transmittance at 532 nm, we have evaluated two photon absorption coefficient and calculated the imaginary part of the third order nonlinear optical susceptibility. The real part describe the nonlinear refractive index change and from degenerate four wave mixing (DFWM) measurements, we obtain the absolute value of the third order nonlinear susceptibility for the investigated ZnSe. Combined with independent measurement of TPA coefficients in this material, this indicates that the measured susceptibility in ZnSe at 532 nm is dominated by nonlinear refraction changes
Keywords :
II-VI semiconductors; absorption coefficients; light refraction; multiwave mixing; nonlinear optical susceptibility; optical materials; two-photon spectra; zinc compounds; 532 nm; TPA coefficients; ZnSe; ZnSe.; degenerate four wave mixing; imaginary part; measured susceptibility; monocrystal ZnSe; nonlinear optical properties; nonlinear refraction changes; nonlinear refractive index change; nonlinear transmittance; third order nonlinear optical susceptibility; third order nonlinear susceptibility; two photon absorption coefficient; Absorption; Equations; Laser excitation; Nonlinear optics; Optical materials; Optical mixing; Optical pumping; Optical refraction; Optical variables control; Zinc compounds;
Conference_Titel :
Transparent Optical Networks, 1999. International Conference on
Conference_Location :
Kielce
Print_ISBN :
0-7803-5637-3
DOI :
10.1109/ICTON.1999.781880
