Unipolar terahertz pulse formation in a nonequilibrium plasma channel formed by an ultrashort uv laser pulse

AV Bogatskaya, EA Volkova, AM Popov - Physical Review E, 2021 - APS
We perform an alternative approach to produce highly unipolar terahertz pulses. The idea is
based on the nonuniform amplification of seed ultrashort carrier-envelope phase (CEP) …

The application of microplasma in the terahertz field: a review

Y Guo, S Wu, X Liu, L Yang, C Zhang - Applied Sciences, 2021 - mdpi.com
Terahertz functional devices are essential to the advanced applications of terahertz radiation
in biology and medicine, nanomaterials, and wireless communications. Due to the small size …

Laser Controlled Loop Antenna

SY Kazantsev, AS Brusentsev… - 2021 Systems of …, 2021 - ieeexplore.ieee.org
A new type of antenna system has been proposed-a configurable loop antenna with laser
control. It is shown that the addition of semiconductor elements of the photoresistor type to …

On the possibility of intense unipolar THz pulses formation in nonhomogeneous nonequilibrium nitrogen plasma channels

AV Bogatskaya, EA Volkova, AM Popov - Photonics, 2023 - mdpi.com
We developed a 3D, fully self-consistent model for analysis of the ultrashort THz unipolar
pulse formation accompanied by its amplification in a nonequilibrium plasma channel …

The response of nonequilibrium nonstationary plasma created by an intense femtosecond UV laser pulse in rare gases to the emission of the THz frequency band

AV Bogatskaya, AM Popov - Laser Physics Letters, 2019 - iopscience.iop.org
We suggest a new approach for the analysis of the response of plasma created in the
process of multiphoton gas ionization by means of an intense UV laser pulse to the terahertz …

Numerical modeling of short electromagnetic pulse propagation in nonequilibrium and nonstationary plasma media

AV Bogatskaya, EA Volkova, AM Popov - Laser Physics, 2019 - iopscience.iop.org
A general approach is developed for the numerical study of short electromagnetic pulse
propagation in nonstationary and nonequilibrium plasma or dielectric media. It is based on …

Prospects of odd and even harmonic generation by an atom in a high-intensity laser field

AV Bogatskaya, EA Volkova, AM Popov - Laser Physics Letters, 2017 - iopscience.iop.org
A new approach for studying the spontaneous emission of an atomic system in the presence
of a high-intensity laser field is used to study the process of harmonic generation. The …

Amplification and lasing in a plasma channel formed in gases by an intense femtosecond laser pulse in the regime of interference stabilization

AV Bogatskaya, EA Volkova, AM Popov - Laser Physics, 2015 - iopscience.iop.org
The effect of the interference stabilization of Rydberg atoms in a high-intensity laser field is
proposed to create a plasma channel with population inversion between a set of Rydberg …

Plasma antennas formed in a Ge crystal under laser irradiation

NN Bogachev, NG Gusein-Zade… - … on Pulsed Lasers …, 2019 - spiedigitallibrary.org
The possibilities of using plasma formed by laser radiation in Ge-and Si semiconductors to
create plasma antennas are analyzed. The dependences of the amplitude of the emitted …

Nonequilibrium plasma channel in gaseous media formed by powerful UV laser as a waveguide for transportation and amplification of short microwave pulses

AV Bogatskaya, EA Volkova, AM Popov - Laser Physics Letters, 2015 - iopscience.iop.org
The evolution of strongly nonequilibrium plasma in a channel created in gaseous media by
powerful UV femtosecond laser pulse is studied. It is demonstrated that such a plasma …