Vol. 30, issue 10, article # 12

Petukhov T. D., Evtushenko G. S., Tel'minov E. N. Amplified spontaneous emission on sodium D-lines using nonresonant optical pumping. // Optika Atmosfery i Okeana. 2017. V. 30. No. 10. P. 888–892. DOI: 10.15372/AOO20171012 [in Russian].
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Abstract:

Experiments are described on the excitation of amplified spontaneous emission on the D-lines of sodium (D2=588.9 nm; D1 = 589.6 nm) at longitudinal optical pumping with a large detuning from the D2 line toward shorter wavelengths. The radiation spectra are measured, which proves gain on the both lines, at  Na concentration of (1–5) ∙ 1014 cm3, buffer gas (helium) pressure of 600 Torr at the working temperature, and pumping power density of more than 1.5 MW/cm2. The time characteristics show that the output radiation varies versus the concentration of sodium atoms in the active medium. The dependences of radiation absorption at the D-lines of sodium on the concentration of Na atoms and buffer gas pressure are given.

Keywords:

active optical system, amplified spontaneous emission, alkaline metals, sodium, optical pumping

References:

  1. Evtushenko G.S. From a metal vapor laser projection microscope to a laser monitor (by the 50 year-anniversary of metal vapor lasers) // Proc. SPIE. 2015. V. 9810. P. 98101F-1–98101F-9.
  2. Evtushenko G.S., Trigub M.V., Gubarev F.A., Evtushenko T.G., Torgaev S.N., Shiyanov D.V. Laser monitor for non-destructive testing of materials and processes shielded by intensive background lighting // Rev. Sci. Instrum. 2014. V. 85, N 3. P. 1–5.
  3. Zemskov K.I. Kazarjan M.A., Petrash G.G. Usiliteli jarkosti izobrazhenij v proekcionnyh opticheskih sistemah // Opticheskie sistemy s usiliteljami jarkosti (Tr. FIAN). M.: Nauka, 1991. V. 206. P. 3–62.
  4. Little C.E. Metal Vapour Lasers: Physics, Engineering & Applications. Chichester, UK: John Wiley & Sons, 1998. 620 p.
  5. Parhomenko A.I., Shalagin A.M. Usilitel' lazernogo izluchenija na parah shhelochnyh metallov // Zh. jeksperim. i teor. fiz. 2014. V. 146, iss. 1. P. 31–44.
  6. Shalagin A.M. Moshhnye lazery na parah shhelochnyh metallov s diodnoj nakachkoj // Uspehi fiz. nauk. 2011. V. 181, N 9. P. 1011–1016.
  7. Gao F., Chen F., Xie J.J., Li D.J., Zhang L.M., Yang G.L., Guo J., Guo L.H. Review on diode-pumped alkali vapor laser // Optik. 2013. V. 124, N 20. P. 4353–4358.
  8. Zhdanov B.V., Knize R.J. Efficient diode pumped cesium vapor amplifier // Opt. Commun. 2008. V. 281, N 15–16. P. 4068–4070.
  9. Atutov S.N., Plehanov A.I., Shalagin A.M. Sverhsvetimost' na rezonansnom perehode atomov Na pri opticheskom vozbuzhdenii // Optika i spektroskopija. 1984. V. 56, N 2. P. 215–222.
  10. Markov R.V., Parhomenko A.I., Plehanov A.I., Shalagin A.M. Generacija na rezonansnom perehode atomov natrija pri nerezonansnom opticheskom vozbuzhdenii // Zh. jeksperim. i teor. fiz. 2009. V. 136, iss. 2. P. 211–233.
  11. Markov R.V., Plehanov A.I., Shalagin A.M. Inversija zaselennostej na perehodah v osnovnoe sostojanie atomov pri nerezonansnom pogloshhenii lazernogo izluchenija // Zh. jeksperim. i teor. fiz. 2001. V. 120, iss. 5. P. 1185–1193.
  12. Konefal Z., Ignaciuk M. Stimulated collision induced processes in sodium vapor in the presence of helium // Appl. Phys. B. 1990. V. 51. P. 285–291.
  13. Konefal Z., Ignaciuk M. Stimulated processes in sodium vapour in the presence of molecular buffer gas systems // Opt. Quantum Electron. 1993. V. 28. P. 169–180.
  14. GSSSD 112-87. Litij, natrij, kalij, rubidij, cezij. Davlenie nasyshhennyh parov pri vysokih temperaturah. M.: Izd-vo standartov, 1988. 38 p.
  15. Verolajnen Ja.F., Nikolaich A.Ja. Radiacionnye vremena zhizni vozbuzhdennyh sostojanij atomov // Uspehi fiz. nauk. 1982. V. 137, iss. 2. P. 305–338.