Abstract
We have used the second harmonic of a Nd: glass laser and a continuously tunable dye laser to measure the variation of the third-order nonlinear susceptibility when passes through the optical-phonon resonance in diamond. The frequency difference between the observed maximum and minimum determines the nonlinear electronic susceptibility both in sign and magnitude with respect to the Raman susceptibility. A theoretical discussion of this interference is presented.
- Received 12 June 1972
DOI:https://doi.org/10.1103/PhysRevB.6.3962
©1972 American Physical Society