Optimal selection of cut-on wavelength in soliton self-frequency shift for nonlinear optical microscopy

Ke Wang; Yuxin Wang; Ping Qiu

doi:10.1117/12.2075422

5 March 2015 Optimal selection of cut-on wavelength in soliton self-frequency shift for nonlinear optical microscopy

Ke Wang, Yuxin Wang, Ping Qiu

Proceedings Volume 9315, Design and Quality for Biomedical Technologies VIII; 93150L (2015) https://doi.org/10.1117/12.2075422
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

Soliton self-frequency shift (SSFS) is a versatile technique for generating ultrashort optical pulses with customized wavelengths suitable for nonlinear optical microscopy. However, spectral overlapping of the soliton with the residual sometimes causes extra power deposition onto the biological samples, which may further induce optical damage. Consequently, how to choose the optimal optical filter is of vital importance for increasing signal level and minimizing damage. Here we propose maximizing the ratio between multi-photon signal and the nth power of the excitation pulse energy as a criterion for optimal spectral filtering in SSFS. This optimization is based on most efficient signal generation and entirely depends on physical quantities that can be easily measured experimentally.

Citation Download Citation

Ke Wang, Yuxin Wang, and Ping Qiu "Optimal selection of cut-on wavelength in soliton self-frequency shift for nonlinear optical microscopy", Proc. SPIE 9315, Design and Quality for Biomedical Technologies VIII, 93150L (5 March 2015); https://doi.org/10.1117/12.2075422

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