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https://doi.org/10.1364/JOSAB.27.002438
Title: | Determination of the nonlinear refractive index in multiphoton absorbers by Z-scan measurements | Authors: | Gu, B. Lou, K. Chen, J. Wang, H.-T. Ji, W. |
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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