Astrophysical Lasers with Radiation Pumping by Accidental Resonance

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Abstract

In this paper we consider a general problem of astrophysical lasersoperating with optical pumping by accidental resonance (PAR) with strongspontaneous emission lines of other elements. The origin of populationinversion and the coefficient of amplification due to the opticalexcitation of atoms (ions) by a four-level scheme with PAR are analyzed.We elucidate conclusively the question of the manifestation ofastrophysical lasers in the optical region of the spectrum, which inprinciple differs from that of astrophysical masers in the microwaverange.

Detaljer

Författare
  • Sveneric Johansson
  • Vladilen Letokhov
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Astronomi, astrofysik och kosmologi

Nyckelord

Originalspråkengelska
Sidor (från-till)1375-1382
TidskriftPublications of the Astronomical Society of the Pacific
Volym115
Utgåva nummer814
StatusPublished - 2003
PublikationskategoriForskning
Peer review utfördJa