Narrow Linewidth Lasers for Brillouin Scattering Spectroscopy

Nonlinear spectroscopy technologies have proven their potential as powerful tools in material sciences. Raman spectroscopy is today without a doubt among one of the most standard material characterization methods for analysis of crystalline materials. As magnetic materials gain increased importance for information technology, the characterization of spin waves is moving into the focus of scientists. In this case, the magnetic properties of such materials are especially of interest and Brillouin light scattering spectroscopy (BLS) [1] is then the prefect technique to investigate with.

Background

Nonlinear optical effects are exploited in a wide range of technologies. In particular, two common nonlinear inelastic scattering methods, Raman and Brillouin scattering, both give important insight into the physical properties of the material under investigation. While