2001/03/01 by D. Yu. Korystov, Dmitry Korystov, S. P. Kulik +1 · 2 citations
Physics and Astronomy · #Orbital Angular Momentum in Optics #Laser-Matter Interactions and Applications #Quantum optics and atomic interactions
paper · doi:10.1134/1.1371056
The interference of spontaneous parametric radiation was observed from two nonlinear crystals separated by a macroscopic layer of a linear substance and excited by a common pump beam. In the presence of strong dielectric dispersion in the layer, the frequency-angular spectra display features analogous to the Rozhdestvenski hooks. The hook wavelength corresponds to the compensation of group velocity dispersions in the nonlinear crystals and the layer.