Stimulated Raman scattering signal generation in a scattering medium using self-reconstructing Bessel beams

2020 ◽  
Vol 8 (6) ◽  
pp. 929
Author(s):  
Xueli Chen ◽  
Xinyu Wang ◽  
Lin Wang ◽  
Peng Lin ◽  
Yonghua Zhan ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Signal Generation ◽  
Scattering Medium ◽  
Bessel Beams ◽  
Scattering Signal ◽  
Stimulated Raman

scholarly journals Simulation of stimulated Raman scattering signal generation in scattering tissues excited by Bessel beams

2021 ◽  
pp. 2150008
Author(s):  
Xinyu Wang ◽  
Lin Wang ◽  
Peng Lin ◽  
Hui Xie ◽  
Xinyi Xu ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Great Influence ◽  
Fractal Model ◽  
Signal Generation ◽  
Model Parameters ◽  
Gaussian Beams ◽  
Bessel Beams ◽  
Specific Chemical ◽  
Stimulated Raman

Stimulated Raman scattering (SRS) microscopy has the ability of noninvasive imaging of specific chemical bonds and been increasingly used in biomedicine in recent years. Two pulsed Gaussian beams are used in traditional SRS microscopes, providing with high lateral and axial spatial resolution. Because of the tight focus of the Gaussian beam, such an SRS microscopy is difficult to be used for imaging deep targets in scattering tissues. The SRS microscopy based on Bessel beams can solve the imaging problem to a certain extent. Here, we establish a theoretical model to calculate the SRS signal excited by two Bessel beams by integrating the SRS signal generation theory with the fractal propagation method. The fractal model of refractive index turbulence is employed to generate the scattering tissues where the light transport is modeled by the beam propagation method. We model the scattering tissues containing chemicals, calculate the SRS signals stimulated by two Bessel beams, discuss the influence of the fractal model parameters on signal generation, and compare them with those generated by the Gaussian beams. The results show that, even though the modeling parameters have great influence on SRS signal generation, the Bessel beams-based SRS can generate signals in deeper scattering tissues.

Stimulated Raman scattering signal amplification in ethanol molecules via resonant cascading

2021 ◽  
Vol 118 (12) ◽  
pp. 121102
Author(s):  
Ying Wang ◽  
Wenhui Fang ◽  
Mithun Bhowmick ◽  
Chenglin Sun ◽  
Zhiwei Men
Keyword(s):  
Raman Scattering ◽  
Signal Amplification ◽  
Stimulated Raman Scattering ◽  
Scattering Signal ◽  
Stimulated Raman

scholarly journals Tunable stimulated Raman scattering by pumping with Bessel beams

1996 ◽  
Vol 21 (4) ◽  
pp. 248 ◽  
Author(s):  
S. Klewitz ◽  
S. Sogomonian ◽  
P. Leiderer ◽  
S. Herminghaus
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Bessel Beams ◽  
Stimulated Raman
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