title: Terahertz wave generation and detection from a cdte crystal characterized by different excitation wavelengths.
abstract: Terahertz (THz) wave generation and detection from a (110)-oriented CdTe crystal via optical rectification and electro-optic sampling has been performed with laser wavelengths ranging from 710 to 970 nm. Three optical rectification regimes are studied with various excitation wavelengths: a resonance-enhanced regime above the bandgap, a highly phase-mismatched regime near the band gap, and a semi-phase-matched regime. A CdTe crystal generates more THz power than a ZnTe crystal at 970 nm.
authors.affiliation: Center for Terahertz Research, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
authors.forename: Xu
authors.initials: X
authors.lastname: Xie
authors.forename: Jingzhou
authors.initials: J
authors.lastname: Xu
authors.forename: X C
authors.initials: XC
authors.lastname: Zhang