Frequency-resolved detection of THz waves with Cherenkov-phase-matched heterodyne EO sampling
Abstract
Recently, we have reported a new electro-optic sampling scheme, that is, the "heterodyne EO sampling," where the EO sampling signal is detected as the intensity change in the probe beam without using any polarization optics. The heterodyne EO signal is obtained by spatial or angle resolved interference in the probe beam. By utilizing this property, we demonstrate frequency-resolved detection of THz waves with Cherenkov-phase-matched heterodyne EO sampling.