PT Journal
AU Kitaeva, GK
   Kornienko, VV
   Kuznetsov, KA
   Pentin, IV
   Smirnov, KV
   Vakhtomin, YB
TI Direct detection of the idler THz radiation generated by spontaneous parametric down-conversion
SO Opt. Lett.
JI Opt. Lett.
PY 2019
BP 1198
EP 1201
VL 44
IS 5
DI 10.1364/OL.44.001198
DE HEB applications
AB We study parametric down-conversion (PDC) of optical laser radiation in the strongly frequency non-degenerate regime which is promising for the generation of quantum-correlated pairs of extremely different spectral ranges, the optical and the terahertz (THz) ones. The possibility to detect tenuous THz-frequency photon fluxes generated under low-gain spontaneous PDC is demonstrated using a hot electron bolometer. Then experimental dependences of the THz radiation power on the detection angle and on the pump intensity are analyzed.
ER