EXCITONIC OPTICAL NONLINEARITIES FOR ZnSe THIN FILM | Zendy

Xiqing Zhang | Zendy; Fan Xi-wu | Zendy; Yimin Chen | Zendy; Lü You-Ming | Zendy; Zhuhong Zheng | Zendy

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EXCITONIC OPTICAL NONLINEARITIES FOR ZnSe THIN FILM

Author(s) -

Xiqing Zhang,

Fan Xi-wu,

Yimin Chen,

Lü You-Ming,

Zhuhong Zheng

Publication year - 1997

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.46.1118

Subject(s) - materials science , refractive index , optics , attenuation coefficient , thin film , sign (mathematics) , wavelength , nonlinear system , intensity (physics) , laser , spectral line , absorption (acoustics) , optoelectronics , molecular physics , physics , quantum mechanics , nanotechnology , mathematical analysis , mathematics

We present a simple,but highly sensitive,method for obtaining both the sign and magnitude of the nonlinear refractive index and the nonlinear absorption coefficient as a function of wavelength. It is shown theoretically that these paramters can be easily obtained from the linear and nonlinear thansmission spectra of the medium as well as the laser intensity distribution on the frequancy. This technique is demonstrated for ZnSe thin film at 77K and room temperature.

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