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Your search keyword '"Volodkin, B. O."' showing total 21 results
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21 results on '"Volodkin, B. O."'

6. Diffraction techniques for transformation of FEL beams* : Experiments at terahertz Novosibirsk free electron laser facility

Author

Knyazev, B. A., primary, Cherkassky, V. S., additional, Choporova, Yu. Yu., additional, Kameshkov, O. E., additional, Kulipanov, G. N., additional, Osintseva, N. D., additional, Pavelyev, V. S., additional, Shevchenko, O. A., additional, Soifer, V. A., additional, Tukmakov, K. N., additional, Vinokurov, N. A., additional, and Volodkin, B. O., additional

Published
2018
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9. Terahertz pump-terahertz probe system at Novosibirsk free electron laser: commissioning and results of first experiments

Author

Choporova, Y. Y., Gerasimov, V. V., Hübers, H.-W., Knyazev, B. A., Kulipanov, G. N., Ovchar, V. K., Pavelyev, V. S., Zhukavin, R. K., Schneider, H., Vinokurov, N. A., Volodkin, B. O., and Shastin, V. N.

Subjects
free-electron laser, pump-probe, Physics::Optics
Abstract

A single-color pump-probe system has been commissioned at the Novosibirsk free electron laser facility. Monochromatic laser radiation with a bandwidth of about 1% can be tuned within the spectral ranges of 90 - 240 and 30 - 90 μm. The laser emits radiation as a continuous stream of 100-ps pulses with a repetition rate of 5.6 MHz. The average radiation power can reach 100 W. The temperature of samples located in a helium cryostat can be varied from 2 up to 325 K. The results of pump-probe measurements of non-equilibrium dynamics of hot electrons in a germanium crystal will be presented.

Published
2016

15. Study of diffractive optical elements using high-power radiation of novosibirsk terahertz free electron laser

Author

Knyazev, B. A., primary, Choporova, Yu. Yu., additional, Gerasimov, V. V., additional, Vlasenko, M. G., additional, Pavelyev, V. S., additional, Volodkin, B. O., additional, Agafonov, A. N., additional, Tukmakov, K. N., additional, Kaveev, A. K., additional, Kropotov, G. I., additional, Tsygankova, E. V., additional, Stupak, M. F., additional, and Palchikova, I. G., additional

Published
2012
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16. Wave beams with orbital angular momentum: a step towards terahertz.

Author

Knyazev, B. A., Cherkassky, V. S., Choporova, Yu. Yu., Kameshkov, O. E., Kulipanov, G. N., Osintseva, N. D., Pavelyev, V. S., Vinokurov, N. A., and Volodkin, B. O.

Subjects
PHOTONS, TERAHERTZ spectroscopy, ANGULAR momentum (Mechanics), SPHEROMAKS, BESSEL beams
Abstract

The article explores on the quantum characteristics of photons such as the energy and angular momentum. It examines the spectral range of the vortex beams from X-ray to radio with the orbital angular momentum (OAM) in the terahertz. It also cites the radial distribution of the beams with microbolometer array moving in the Bessel beams.

Published
2017
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17. Terahertz Bessel beams with orbital angular momentum: diffraction and interference.

Author

Choporova, Yu. Yu., Knyazev, B. A., Osintseva, N. D., Pavelyev, V. S., and Volodkin, B. O.

Subjects
BESSEL beams, ANGULAR momentum (Mechanics), RADIO frequency, X-rays, ELECTRONS, TERAHERTZ spectroscopy
Abstract

The article presents a study regarding the use of beams with orbital angular momentum from radio frequency to X-ray radiation. It examines the utilization of the Novosibirsk free electron laser with orbital angular momentum (OAM) for the adaption of terahertz range. It also cites the detection of the rotation of a beam in the interference pattern.

Published
2017
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