Open AccessЭлектроразрядный KrF-лазер с высокой удельной энергией излучения
Author(s) -
Ю.Н. Панченко,
А.В. Пучикин,
С.А. Ямпольская,
М.В. Андреев,
Е.В. Горлов,
В.И. Жарков
Publication year - 2022
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2022.06.52516.32-22
Subject(s) - lasing threshold , radiation , laser , excited state , materials science , plasma , excimer laser , atomic physics , excimer , characteristic energy , radiant energy , internal energy , optoelectronics , optics , physics , quantum mechanics
Results of experimental and numerical studies of an electric-discharge KrF laser with a specific pump power of 3.5 and 7 MW/cm3 are presented; in this case, lasing was obtained with a specific radiation pulse energy of ~ 6 and 9.5 J/l, with an internal energy efficiency of ~ 4%. Time dependences of the formation of charged and excited particles in a dense excimer plasma with an electron concentration of ne ~ 1016 cm-3 are shown. Conditions for the effective operation of the laser are proposed, which will make it possible to ensure a further increase in the specific radiation energy by more than two times while maintaining the high internal efficiency of the laser relative to the energy deposited into the discharge.