46 citations · 96 across the 5 of their papers we have counts for
5 papers
Anharmonic coherent dynamics of the soft phonon mode of a PbTe crystal
A. A. Melnikov, Yu. G. Selivanov, S. V. Chekalin
We investigate the ultrafast optical response of PbTe to an intense single-cycle terahertz pulse, resonant with the soft transverse optical (TO) phonon mode of the crystal. We dete…
Observation of linear and nonlinear light localization at the edges of moiré lattices
A. A. Arkhipova, Y. V. Kartashov, S. K. Ivanov +11
We observe linear and nonlinear light localization at the edges and in the corners of truncated moiré lattices created by the superposition of periodic mutually-twisted at Pythagor…
Anomalous behavior of the infrared-active phonon mode in a BiSrSe crystal
A. A. Melnikov, K. N. Boldyrev, Yu. G. Selivanov +1
We have studied spectral evolution of the phonon line of a topological insulator BiSrSe with temperature. Unlike the Raman-active phonons, the mode…
Terahertz Kerr effect in a methylammonium lead bromide perovskite crystal
A. A. Melnikov, V. E. Anikeeva, O. I. Semenova +1
We have observed short-lived optical birefringence in a CHNHPbBr single crystal induced by a powerful nearly single-cycle terahertz pulse. Apart from the instantaneous…
Giantically blue-shifted visible light in femtosecond mid-IR filament in fluorides
A. E. Dormidonov, V. O. Kompanets, S. V. Chekalin +1
A giant blue shift of an isolated visible band of supercontinuum was discovered and studied in the single filament regime of Mid-IR femtosecond laser pulse at powers slightly excee…