<title>Theoretical computer analysis of optical characteristics of pulsed chemical HF laser gain medium</title>

Abstract

it is araiysed the change oi' refractive coeri'icient ot active gas medium iTn pulsed chain chemical HF-laser due to temporal variations of chemical composit ion and populat ions or vibrational states HF(v) and H.(v)-mnolecuies. These changes is related with diri'erent polarizability o components ol chemical laser medium and dependence or polarizability on vibrational state population ror atomic and electronic constituents or polarizability. The atomic polarizability is characterized by sizable Irequency dispersion. The change o rei'lective ooeicient due to change o1 vibIationa] excitation is nonline eUect., since the vibrational excitation dependented rrom intenity o1 laser beam.