Cascaded Stokes polarization conversion in cubic Raman crystals.

Area of Science:

• Physics
• Optics
• Materials Science

Background:

• Coherent Raman scattering (CRS) is crucial for nonlinear optics.
• Understanding polarization and gain in cascaded Stokes orders is vital for laser design.
• Existing models may not fully capture the complex dynamics in Raman cubic crystals.

Purpose of the Study:

• To develop a theoretical framework for predicting polarization and gain of cascaded Stokes orders in CRS.
• To validate the theoretical model with experimental data.
• To extend the model for various crystal propagation directions to aid laser design.

Main Methods:

• A theoretical approach based on Müller calculus and tensor calculus.
• Markovian-style implementation for F2g-type modes.
• Experimental validation of the theoretical predictions.

Main Results:

• The theoretical model accurately predicts the polarization state and gain of cascaded Stokes orders.
• Experimental results confirm the model's predictive capabilities.
• The model's applicability was demonstrated across various crystal propagation directions.

Conclusions:

• Sequential calculus effectively predicts polarization and power of cascaded Stokes orders in CRS.
• The developed theoretical approach facilitates the design of advanced solid-state Raman lasers.
• This work provides a valuable tool for optimizing nonlinear optical devices.