Related Experiment Video
Updated: Jun 10, 2026

Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy
Published on: July 25, 2022
Gain enhancement by signal beam chopping for two-wave coupling with a BSO crystal
Abstract:
Gain enhancement via signal beam chopping for two-wave coupling with a Bi(12)SiO(20) crystal is demonstrated. In this method the gain of a two-wave coupling scheme is increased using a transient effect. This effect is created during the grating formation due to the phase difference between the interference fringe of the light intensity incident on the crystal and the photoinduced refractive index fringe in the crystal. The maximum gain of 11.7 was achieved with an applied electric field of 6.0 kV/cm, a fringe spacing of 29.5 microm, a beam intensity ratio of 1240, and a chopping frequency of 6.0 Hz. This gain is nearly as high as that obtained with the moving interference-fringe method proposed by Huignard and Marrakchi. The gain enhancement using the transient effect caused by the polarization rotation of the signal beam (using a rotating halfwave plate) is also described. Preliminary experimental results are shown.
Related Concept Videos
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
Nuclear Overhauser Enhancement (NOE)
Clipper Circuit
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
¹H NMR Signal Multiplicity: Splitting Patterns