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Implementation of a Nonlinear Microscope Based on Stimulated Raman Scattering

Implementation of a Nonlinear Microscope Based on Stimulated Raman Scattering

Published on: July 6, 2019

Investigation of the Spatial Generation of Stimulated Raman Scattering Using Computer Simulation and Experimentation.

Ronja Eriksson¹, Per Gren¹, Mikael Sjödahl¹

¹Department of Engineering Science and Mathematics, 407846Luleå University of Technology, Luleå, Sweden.

Applied Spectroscopy

|October 25, 2022

Summary

This summary is machine-generated.

Investigating stimulated Raman scattering (SRS) spatial generation is key for 3D molecular imaging. SRS signals primarily originate near the pump beam focus, with peak intensity following pump intensity.

Keywords:

Stimulated Raman scattering experiments simulations spatial distribution spatial rate

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Area of Science:

Optics
Spectroscopy
Nonlinear Optics

Background:

Stimulated Raman scattering (SRS) offers real-time 3D molecular imaging capabilities.
Precise 3D imaging necessitates understanding the spatial generation of SRS signals.

Purpose of the Study:

To investigate the spatial behavior of stimulated Raman scattering generation.
To analyze the spatial distribution and growth of SRS signals under varying pump power and interaction lengths.

Main Methods:

Computer simulations employing diffraction theory and nonlinear phase modulation.
Experimental investigation using ethanol illuminated by a pump beam, with transmission imaging.

Main Results:

SRS signal generation was predominantly observed near the pump beam focus.
The spatial width of SRS generation was 0.21 mm experimentally and 0.09 mm in simulations.
Peak Stokes intensity spatially lagged slightly behind peak pump intensity.

Conclusions:

The spatial characteristics of SRS generation are crucial for its application in 3D molecular imaging.
Simulation and experimental results align, confirming SRS generation proximity to the pump focus.