Threshold Conditions for Terahertz Laser Discharge in Atmospheric Gases

V. V. Kubarev, Ya V. Getmanov, O. A. Shevchenko, P. V. Koshlyakov

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

13 Цитирования (Scopus)


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.

Язык оригиналаанглийский
Страницы (с-по)787-798
Число страниц12
ЖурналJournal of Infrared, Millimeter, and Terahertz Waves
Номер выпуска6
СостояниеОпубликовано - 1 июн. 2017


Подробные сведения о темах исследования «Threshold Conditions for Terahertz Laser Discharge in Atmospheric Gases». Вместе они формируют уникальный семантический отпечаток (fingerprint).