Influence of nonlinear effects in ZnTe on generation and detection of terahertz waves
2009
Nonlinear effects, including two-photon absorption, Kerr effect, and terahertz related Kerr-like effect, are observed in one ZnTe crystal used as a terahertz emitter and detector. Experiment results show that nonlinear two-photon absorption of the probe beam, which adds to the difference signal, cannot be ignored. By removing the contribution of two-photon absorption, we demonstrate that the phase change in probe beam is due to Kerr effect and terahertz related Kerr-like effect. A phase sensitive time resolved z-scan method is introduced to study the relationship between Kerr effect and terahertz related Kerr-like nonlinear effect, and the latter one is proved not to be only the primary fact that causes phase change in probe beam in one ZnTe.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
22
References
9
Citations
NaN
KQI