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|Title:||Determination of the nonlinear refractive index in multiphoton absorbers by Z-scan measurements||Authors:||Gu, B.
|Issue Date:||Nov-2010||Citation:||Gu, B., Lou, K., Chen, J., Wang, H.-T., Ji, W. (2010-11). Determination of the nonlinear refractive index in multiphoton absorbers by Z-scan measurements. Journal of the Optical Society of America B: Optical Physics 27 (11) : 2438-2442. ScholarBank@NUS Repository. https://doi.org/10.1364/JOSAB.27.002438||Abstract:||We report the theoretical investigation of the Z-scan technique for characterizing the instantaneous Kerr nonlinearity of an optically thin multiphoton absorber. Based on the Huygens-Fresnel diffraction integral method, we study the characteristics of the closed-aperture Z-scan traces. Most importantly, we present the analytical formulae of the closed-aperture Z-scan transmittance with simultaneous Kerr effect and n-photon absorption. Besides, we demonstrate that the determination of the third-order nonlinear refractive index in multiphoton absorbers becomes timesaving yet unambiguously by the presented theory. © 2010 Optical Society of America.||Source Title:||Journal of the Optical Society of America B: Optical Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/96202||ISSN:||07403224||DOI:||10.1364/JOSAB.27.002438|
|Appears in Collections:||Staff Publications|
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