Optical nonlinear conversion processes are ubiquitously applied to scientific as well as
industrial tasks. In particular, nonlinear processes are employed to generate radiation in …

We report, and review in detail, experiments resulting in a record 3.7% optical-to-terahertz
(THz) conversion efficiency by optical rectification (OR) in cryogenically cooled congruent …

LiNbO3 crystals have been essential materials for generating freely propagating terahertz
(THz) pulses among other materials because of their excellent nonlinear optical properties …

The possibility to manage and control spectral and spatial properties of optical-terahertz
nonclassical fields generated in strongly nondegenerate parametric down-conversion is …

We study conditions for the generation of strongly correlated photons of two extremely
different frequency ranges, optical and terahertz, via the spontaneous parametric down …

Terahertz electromagnetic radiation, its generation, detection and material interaction is an
emerging field of study. Diverse range of researches is going on to explore and understand …

Frequency-angular distributions of optical signals generated via spontaneous parametric
downconversion with the Stokes idler frequency shifts 0.2–5 THz are studied simultaneously …

We study the dispersion of the extraordinary dielectric function real and imaginary parts in
the wide terahertz-frequency range of the lowest polariton branch for bulk LiNbO 3 and Mg …

A new method is proposed for calibration of the terahertz wave spectral brightness. The
method is based on the use of quantum and thermal field fluctuations as intrinsic references …

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 …