Cr:Forsterite-laser-based fiber-optic nonlinear endoscope with higher efficiencies |
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| Authors: | Chan Ming-Che Chu Shi-Wei Tseng Chien-Hung Wen Yu-Chieh Chen Yi-Hsien Su Guo-Dung John Sun Chi-Kuang |
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| Affiliation: | Department of Electrical Engineering and Graduate Institute of Electro-Optical Engineering, National Taiwan University, Taipei 10617, Taiwan, Republic of China. |
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| Abstract: | We demonstrate a beam-scanning nonlinear light endoscope based on a flexible fiber bundle. Excited with a femtosecond Cr:Forsterite laser, the degradation in multiphoton multiharmonic excitation efficiency due to the pulse-broadening effect is significantly reduced without utilizing any external devices. The system resolution has been characterized to be 5.4 microm in the two-photon fluorescence endoscope, limited by the sampling theory. Finally, several image examples have been given. |
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| Keywords: | fiber optics imaging nonlinear microscopy pulse propagation |
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