New scattering orders in degenerate four-wave mixing with a bulk semiconductor have been observed due to spatial subharmonic bifurcation of the laser-induced grating. For the observation, wave mixing in the Raman-Nath regime was performed in a thin platelet of CdS that exhibited increasing absorption optical bistability. A qualitative theoretical model is presented that explains the appearance of new scattering orders.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics