Amplification in a mixture of isotopic CO$sub 2$ molecules pumped by CO$sub 2$ laser radiation

Journal Article · Tue Jul 01 04:00:00 EDT 1975 · Sov. J. Quant. Electron. (Engl. Transl.), v. 5, no. 7, pp. 811-816

DOI:https://doi.org/10.1070/QE1975v005n07ABEH011448· OSTI ID:4091567

Golger, A L; Letokhov, V S

A theoretical analysis is made of the possibility of constructing a continuously tunable gas laser emitting radiation as a result of resonant optical pumping of a mixture of isotopic molecules by the radiation of a second laser. It is shown that a simple sealed laser can be built on this basis. The gain is calculated for binary and ternary mixtures of isotopic CO$sub 2$ molecules subjected to optical pumping with lambda=9.6 $mu$ radiation emitted by a CO$sub 2$--N$sub 2$--He laser. It is shown that a gain of approx.2x10$sup -3$ cm$sup - 1$ should be obtained as a result of optical pumping of an isotopic mixture of CO$sub 2$ molecules at a pressure of 1 atm at 400degree K and this should be true both under pulse and continuous emission conditions. In the pulse case, the pump energy density should be 10 J/cm$sup 2$. In the continuous case, the same gain can be obtained using waveguides resonators of approx.100 $mu$ diameter when the pump power is twice the threshold value of approx.70 W. (AIP)

• Research Organization: Institute of Spectroscopy, Academy of Sciences of the USSR, Akademgorodok, Moscow Province
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-014736
• OSTI ID: 4091567
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.), v. 5, no. 7, pp. 811-816, Journal Name: Sov. J. Quant. Electron. (Engl. Transl.), v. 5, no. 7, pp. 811-816; ISSN SJQEA
• Country of Publication: United States
• Language: English

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