Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Threshold Conditions for Terahertz Laser Discharge in Atmospheric Gases. / Kubarev, V. V.; Getmanov, Ya V.; Shevchenko, O. A. и др.
в: Journal of Infrared, Millimeter, and Terahertz Waves, Том 38, № 6, 01.06.2017, стр. 787-798.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Threshold Conditions for Terahertz Laser Discharge in Atmospheric Gases
AU - Kubarev, V. V.
AU - Getmanov, Ya V.
AU - Shevchenko, O. A.
AU - Koshlyakov, P. V.
PY - 2017/6/1
Y1 - 2017/6/1
N2 - In this study, we accurately measured the breakdown thresholds in four atmospheric gases using the high-power terahertz radiation of the Novosibirsk free electron laser (NovoFEL). The breakdown intensities of the 130-μm radiation in a form of 74-ps pulses were equal to 1.1–1.4 GW/cm2. These data have been compared with calculations based on a phenomenological criterion for a breakdown and the classical theory of stochastic microwave heating of electrons. Presented are threshold conditions for a quasi-continuous plasma discharge that is maintained by means of a sequence of pulses of the NovoFEL. At a pulse repetition rate of 5.6 MHz, the discharge quenching thresholds are 15–60% lower than the breakdown thresholds depending on the amount of plasma emerging.
AB - In this study, we accurately measured the breakdown thresholds in four atmospheric gases using the high-power terahertz radiation of the Novosibirsk free electron laser (NovoFEL). The breakdown intensities of the 130-μm radiation in a form of 74-ps pulses were equal to 1.1–1.4 GW/cm2. These data have been compared with calculations based on a phenomenological criterion for a breakdown and the classical theory of stochastic microwave heating of electrons. Presented are threshold conditions for a quasi-continuous plasma discharge that is maintained by means of a sequence of pulses of the NovoFEL. At a pulse repetition rate of 5.6 MHz, the discharge quenching thresholds are 15–60% lower than the breakdown thresholds depending on the amount of plasma emerging.
KW - Free electron laser
KW - Terahertz laser discharge
KW - Threshold of gas breakdown
KW - FREE-ELECTRON LASER
UR - http://www.scopus.com/inward/record.url?scp=85015612153&partnerID=8YFLogxK
U2 - 10.1007/s10762-017-0380-3
DO - 10.1007/s10762-017-0380-3
M3 - Article
AN - SCOPUS:85015612153
VL - 38
SP - 787
EP - 798
JO - Journal of Infrared, Millimeter, and Terahertz Waves
JF - Journal of Infrared, Millimeter, and Terahertz Waves
SN - 1866-6892
IS - 6
ER -
ID: 10271813