Related Experiment Video
Updated: Jul 14, 2026

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
Published on: September 22, 2017
Focal-plane imaging of crossed beams in nonlinear optics experiments
1Advanced Sensing and Optical Measurement Branch, NASA Langley Research Center, 18 Langley Boulevard, Hampton, VA 23681, USA.
Abstract:
An application of focal-plane imaging that can be used as a real time diagnostic of beam crossing in various optical techniques is reported. We discuss two specific versions and demonstrate the capability of maximizing system performance with an example in a combined dual-pump coherent anti-Stokes Raman scattering-interferometric Rayleigh scattering experiment (CARS-IRS). We find that this imaging diagnostic significantly reduces beam alignment time and loss of CARS-IRS signals due to inadvertent misalignments.

