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Opt Lett. 2009 Dec 1;34(23):3665-7. doi: 10.1364/OL.34.003665.

Modeling of Z-scan characteristics for one-dimensional nonlinear photonic bandgap materials.

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  • 1The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School,Nankai University, Tianjin 300457, China.


We propose a Z-scan theory for one-dimensional nonlinear photonic bandgap materials. The Z-scan characteristics for this material are analyzed. Results show that the Z-scan curves for photonic bandgap materials with nonlinear refraction are similar to those of uniform materials exhibiting both nonlinear refraction and nonlinear absorption simultaneously. Effects of nonlinear absorption on reflected and transmitted Z-scan results are also discussed.

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