Abstract
We report infrared laser emission in the region of 3 to 5 μm from sodium vapour optically pumped by a pulsed dye laser with wavelengths ranging from 585 to 610nm. Twophoton excitation processes are believed to be responsible for the primary excitation. Both molecular transitions (4 to 5 μm) between high lying states, and atomic transitions (52 S 1/2−42 P 3/2,1/2 at 3.41 μm) have been identified.
Similar content being viewed by others
References
H.Welling, B.Wellegehausen: InLaserspectroscopy III, ed. by J.L.Hall and J.L.Carlson. Springer Series in Opt. Sci.7 (Springer, Berlin, Heidelberg, New York 1977) pp. 365–369
J.Brook Koffend, R.W.Field, D.R.Guyer, S.R.Leone: InLaserspectroscopy III, ed. by J.L.Hall and J.L.Carlson, Springer Series in Opt. Sci.7 (Springer, Berlin, Heidelberg, New York 1977) pp. 382–393
B.Wellegehausen, S.Shadin, D.Friede, H.Welling: Appl. Phys.13, 97–99 (1977)
M.A.Henesian, R.L.Herbst, R.L.Byer: J. Appl. Phys.47, 1515–1518 (1976)
H.Itoh, H.Uchiki, M.Matsuoka: Opt. Commun.18, 271–273 (1976)
M.Lapp, L.P.Harris: J. Quant. Spectrosc. Radiat. Transfer6, 169 (1966)
K.P.Huber, G.Herzberg:Molecular Spectra and Molecular Structure, IV. Constants of Diatomic Molecules (Van Nostrand, New York 1979)
J.P.Woerdman: Chem. Phys. Lett.43, 279–282 (1976)
J.P.Woerdman: Phys. Lett.69A, 18–20 (1978)
N.W.Carlson, F.V.Kowalski, R.E.Teets, A.L.Schawlow: Opt. Commun.29, 302–306 (1979)
P.Kusch, M.M.Hessel: J. Chem. Phys.63, 4087–4088 (1975)
S.Bashkin, J.O.Stoner,Jr.:Atomic Energy Levels and Grotrian Diagrams, Vol. II (North Holland, Amsterdam 1978)
W.Hartig: Appl. Phys.15, 427–432 (1978)
H.E.Schöne: Dissertationsschrift, Universität Bielefeld (1979)
D.Cotter, D.C.Hanna, W.H.W.Tuttlebee, M.A.Yuratich: Opt. Commun.22, 190–194 (1977)
G.H.Bearman, J.J.Leventhal: Phys. Rev. Lett.41, 1227–1230 (1978)
M.Allegrini, G.Alzetta, A.Kopystynska, L.Moi, G.Orriols: Opt. Commun.19, 96–99 (1976)
M.Allegrini, G.Alzetta, A.Kopystynska, L.Moi, G.Orriols: Opt. Commun.22, 329–332 (1977)
J.Krasinski, T.Stacewicz, C.R.Stroud, Jr.: Opt. Commun. (to be published) (1980)
T.B.Lucatorto, T.J.McIlrath: Phys. Rev. Lett.37, 428–431 (1976)
P.L.DeVries, K.S.Lam, T.F.George: InElectronic and Atomic Collisions, ed. by N.Oda and K.Takayanagi (North Holland, Amsterdam 1980) pp. 683–695