Abstract
Using two coherent time delayed short pulses, we have demonstrated that one can obtain, in the profile of Doppler-free two-photon resonances, interference fringes with a splitting 1/2T (T: delay time between the two pulses) much smaller than the spectral width 1/τ of each pulse (τ: duration of each pulse). Furthermore, by inducing a 90° phase shift between pairs of coherent time-delayed laser pulses, and subtracting the resulting fluorescence from pairs of coherent pulses with and without the phase shift, we have eliminated the diffraction background and isolated the Ramsey's interference fringes in the profile of Doppler-free two-photon resonances. This technique should lead to a number of important improvements in the presently available methods of ultra-high resolution laser spectroscopy of atoms, molecules, and crystals.
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L.S.Vasilenko, V.P.Chebotayev, A.V.Shishaev: Pis'ma Zh. Eksp. Teor. Fiz.12, 161 (1970) [JETP Lett.12, 113 (1970)];
B.Cagnac, G.Grynberg, F.Biraben: J. Phys. (Paris)34, 56 (1973) and Phys. Rev. Lett.32, 643–643 (1974);
M.D.Levenson, N.Bloembergen: Phys. Rev. Lett.32, 645 (1974);
T.W.Hänsch, K.Harvey, G.Meisel, A.L.Schawlow: Opt. Comm.11, 50 (1974);
M.M.Salour: Opt. Comm.18, 377 (1976);
J.P.Woerdman: Chem. Phys. Lett.43, 279 (1976)
For a review see N.Bloembergen, M.D.Levenson, in:High-Resolution Laser Spectroscopy, ed. by K.Shimoda, Topics Appl. Phys., Vol. 13 Springer Berlin, Heidelberg, New York 1976)
M.M.Salour: Opt. Comm.18, 377 (1976);
M.M.Salour, Ph. D. thesis, Harvard University (1977)
N.F.Ramsey: Phys. Rev.76, 996 (1949); andMolecular Beams (Oxford University Press: New York 1956);
P.B.Kramer, S.R.Lundeen, B.O.Clark, F.M.Pipkin: Phys. Rev. Lett32, 635 (1974)
Ye.V.Baklanov, B.Ya.Dubetskii, V.P.Chebotayev: Appl. Phys.9, 171 (1976); and Appl. Phys.11, 201 (1976);
B.Ya.Dubetskii: Kvantovaya Elektron. (Moscow)3, 1258 (1976) [Sov. J. Quantum Electron.6, 682 (1976)]
J.C.Bergquist, S.A.Lee, J.L.Hall: Phys. Rev. Lett.38, 159 (1977)
Note that the method of using two coherent time-delayed electromagnetic pulses has already been used in the microwave domain. See, for example: C.O.Alley, inQuantum Electronics, A Symposium (Columbia University Press: New York 1960), p. 146;
M.Arditi, T.R.Carber: IEEE Trans IM-13, 146 (1964)
M.M.Salour: Bull. Am. Phys. Soc.,21, 1245 (1976);
M.M.Salour, C.Cohen-Tannoudji: Phys. Rev. Lett.38, 757 (1977)
M.M.Salour: Opt. Comm.22, 202 (1977)
M.M.Salour: Appl. Phys. Lett.31, 394 (1977)
R.Teets, J.Eckstein, T.W.Hänsch: Phys. Rev. Lett.38, 760 (1977)
F.P.Schäfer (ed.):Dye Lasers 2nd ed., Topics Appl. Phys. Vol. 1 (Springer Berlin, Heidelberg, New York 1977)
S.L.Shapiro (ed.):Ultrashort Light Pulses, Topics Appl. Phys., Vol. 18 (Springer Berlin, Heidelberg, New York 1977)
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Salour, M.M. Optical ramsey fringes in two-photon spectroscopy. Appl. Phys. 15, 119–131 (1978). https://doi.org/10.1007/BF00928196
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DOI: https://doi.org/10.1007/BF00928196