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Self-defocusing of nanosecond laser pulses in ZnTe (1994)

Ji, W. ; Kukaswadia, A. K. ; Feng, Z. C. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 75 (1994), S. 3340-3343

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: We report the observation of self-defocusing in ZnTe across a range of wavelengths just below the band edge. By using nanosecond laser pulses, the transmitted spatial profiles and the optical limiting behavior are measured. We also compare the experimental results to a theory, which assumes that the self-refraction is caused by free carriers created by single-photon absorption. By fitting this theory to the experimental findings, the nonlinear refractive cross-sections are deduced. We find that the values of the nonlinear refractive cross-sections are in agreement with a band-filling model.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.356118

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