title: Coherent electro-optical detection of terahertz radiation from an optical parametric oscillator.
abstract: We report the realization of coherent electro-optical detection of nanosecond terahertz (THz) pulses from an optical parametric oscillator, which is pumped by a Q-switched nanosecond Nd:YVO4 laser at 1064 nm and emits at approximately 1.5 THz. The beam profile and wavefront of the THz beam at focus are electro-optically characterized toward the realization of a real-time THz camera. A peak dynamic range of approximately 37 dB/radical Hz is achieved with single-pixel detection.
authors.affiliation: 1Johann Wolfgang Goethe-Universität, Physikalisches Institut, Max-von-Laue-Str. 1, D-60438 Frankfurt, Germany. meng@physik.uni-frankfurt.de
authors.forename: F Z
authors.initials: FZ
authors.lastname: Meng
authors.forename: M D
authors.initials: MD
authors.lastname: Thomson
authors.forename: D
authors.initials: D
authors.lastname: Molter
authors.forename: T
authors.initials: T
authors.lastname: Löffler
authors.forename: J
authors.initials: J
authors.lastname: Jonuscheit
authors.forename: R
authors.initials: R
authors.lastname: Beigang
authors.forename: J
authors.initials: J
authors.lastname: Bartschke
authors.forename: T
authors.initials: T
authors.lastname: Bauer
authors.forename: M
authors.initials: M
authors.lastname: Nittmann
authors.forename: H G
authors.initials: HG
authors.lastname: Roskos
mesh_terms: D004581:Electronics / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D055096:Optical Devices; D009991:Oscillometry / Q000295:instrumentation*; D055053:Terahertz Radiation