Abstract
Frequency broadening and small-scale filaments were observed in calcite, quartz, sodium chloride, and several glasses under picosecond pulse excitation. The physical mechanism responsible for these processes is the change in refractive index resulting from electronic distortion.
- Received 10 December 1969
DOI:https://doi.org/10.1103/PhysRevLett.24.592
©1970 American Physical Society