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Kvantovaya Elektronika, 1990 Volume 17, Number 7, Pages 815–816 (Mi qe6789)

Letters to the editor

Optically pumped x-ray free-electron laser as a two-level quantum oscillator with a completely inverted active medium

È. M. Belenov, S. V. Grigor'ev, A. V. Nazarkin, I. V. Smetanin


Abstract: A laser with a sufficiently monoenergetic free-electron beam pumped by a counterpropagating optical wave can exhibit quantum effects. The threshold of appearance of these effects for the beam parameters attainable at present lies in the x-ray emission range where an optically pumped free-electron laser becomes a two-level quantum oscillator with a completely inverted active medium. It is shown that 100% utilization of the inversion in each pass is possible in such a laser. Estimates of the output radiation and optical pump powers are obtained.

UDC: 621.373.826

PACS: 41.60.Cr, 42.55.Vc

Received: 05.01.1990


 English version:
Soviet Journal of Quantum Electronics, 1990, 20:7, 733–734

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© Steklov Math. Inst. of RAS, 2024