Publications by authors named "Vladimir Lozhkarev"
Article Synopsis
- Researchers studied how cubic nonlinearity affects second-harmonic generation in femtosecond laser pulses.
- They explored ways to enhance generation efficiency and reduce pulse duration.
- An experiment achieved a 60% energy conversion efficiency using a 1 mm thick KDP crystal, with peak intensity at 0.6 TW/cm² and a pulse duration of 60 fs.
We discuss the theoretical and experimental investigation of acousto-optic dispersive tunable filters, based on quasi-collinear geometry of light-sound interaction in a tellurium dioxide single crystal. The geometry uses the effect of strong acoustic anisotropy in the paratellurite as well as peculiarities of acoustic wave reflections at the free boundary of the crystal. A mathematical concept for determination of optical, electrical, and constructional parameters of the filters is developed.
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