Coherent electro-optical detection of terahertz radiation from an optical parametric oscillator.
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.
Meng
F Z
FZ
1Johann Wolfgang Goethe-Universität, Physikalisches Institut, Max-von-Laue-Str. 1, D-60438 Frankfurt, Germany. meng@physik.uni-frankfurt.de
Thomson
M D
MD
Molter
D
D
Löffler
T
T
Jonuscheit
J
J
Beigang
R
R
Bartschke
J
J
Bauer
T
T
Nittmann
M
M
Roskos
H G
HG
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