Abstract
An intense radiation at 395.0 nm has been observed when lithium vapor is optically pumped in a heat pipe with a pulsed dye laser whose output wavelength is tuned near the Li 2s–4s two-photon resonance transition. The radiation is emitted in the direction along the pump laser beam. It is proposed that the 395.0 nm radiation is mainly generated through three-photon excitation and one-Raman-photon scattering followed by two-cascade (spontaneous) emission. The overall reaction mechanism can be described by a parametric six-wave mixing process. The quantum efficiency of the observed process is estimated to be of the order of 2 × 10−6.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
For example, see D.C. Hanna, M.A. Yuratich, D. Cotter: Nonlinear Optics of Free Atoms and Molecules, Springer Ser. Opt. Sci., Vol. 17 (Springer, Berlin, Heidelberg 1979)
See for example, Y.R. Shen: The Principles of Nonlinear Optics, (Wiley, New York 1984)
M.A. Moore, W.R. Garrett, M.G. Payne: Phys. Rev. A 39, 3692 (1989)
M.A. Moore, W.R. Garrett, M.G. Payne: Opt. Commun. 68, 310 (1988)
J. Reif, H. Walther: Appl. Phys. 15, 361 (1978)
D. Cotter, D.C. Hanna, W.H.W. Tuttlebee, M.A. Yuratich: Opt. Commun. 22, 190 (1977)
Q.H.F. Vrehen, H.M.J. Hikspoors: Opt. Commun. 21, 127 (1977)
F.Z. Chen, X.-F. Han, C.Y.R. Wu: Bull. Am. Phys. Soc. 34, 1664 (1989)
Z.G. Wang, H. Schmidt, B. Wellegehausen: Appl. Phys. B 44, 41 (1987)
T.C. Chu, C.Y.R. Wu: J. Chem. Phys. 88, 5237 (1988)
H.H. Wu, T.C. Chu, C.Y.R. Wu: Appl. Phys. B 43, 225 (1987)
A.C. Tam, W. Happer: Opt. Commun. 21, 403 (1977)
F.Z. Chen, C.Y.R. Wu, T.S. Yih, H.H. Wu, Y.C. Hsu, K.C. Lin: In Advances in Laser Sciences — III, ed. by A.C. Tam, J.L. Gole, W.C. Stwalley (Am. Inst. Phys., New York 1988) p. 158
L.J. Zych, J. Lukasik, J.F. Young, S.E. Harris: Phys. Rev. Lett. 40, 1493 (1978)
P. Braunlich, R. Hall, P. Lambropoulos: Phys. Rev. A 5, 1013 (1972)
B. Nikolaus, D.Z. Zhang, P.E. Toschek: Phys. Rev. Lett. 47, 171 (1981)
K.-J. Boller, H.-J. Lau, J. Sparbier, P.E. Toschek: Bull. Am. Phys. Soc. 32, 1625 (1987)
J.L. Carlsten, A. Szoke, M.G. Raymer: Phys. Rev. A 15, 1029 (1977)
W.C. Stwalleyl, M.E. Koch: Opt. Eng. 19, 71 (1980)
T.C. Chu, F.Z. Chen, C.Y.R. Wu: Unpublished results
R.D. Hudson, V.L. Carter: Phys. Rev. 137, A1648 (1965)
J.-C. Diels, A.T. Georges: Phys. Rev. A 19, 1589 (1979)
M.A. Henesian, R.L. Herbst, R.L. Byer: J. Appl. Phys. 47, 1515 (1976)
Author information
Authors and Affiliations
Additional information
This work was partially supported by the USC Faculty Research and Innovation Fund