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28 September 2007 First order distributed feedback dye laser effect in reflection pumping geometry for nonlinear optical measurements
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Abstract
Tunable distributed feedback (DFB) lasing output based on reflection grating configuration instead of the traditional transmission grating type was realized from rhodamine 6G (R6G)-doped ethanol and DCM-doped methanol. Pure gain coupling and additional index coupling were obtained in R6G-doped ethanol and DCM-doped methanol, respectively. The tuning which was independent on the refractive index of the lasing media went through all of the tuning data for the two cases. Dual-peak lasing emissions indicative of the existence of the index grating from the DCM-doped methanol were observed. The interval between the dual peaks increased as the increasing of the pump energy. The effect can be used to estimate the resonant nonlinear refractive index of luminescent materials.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
F. Chen, D. Gindre, and J.-M. Nunzi "First order distributed feedback dye laser effect in reflection pumping geometry for nonlinear optical measurements", Proc. SPIE 6653, Linear and Nonlinear Optics of Organic Materials VII, 665304 (28 September 2007); https://doi.org/10.1117/12.734828
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