Abstract
Provided one has been able to develop/acquire frequency and intensity stabilized sources of coherent radiation, there remain two main problems in the pursuit of narrow lines: transit time broadening and Doppler broadening. The first-order Doppler effect may be essentially eliminated by various techniques: saturated absorption, two-photon spectroscopy, highly collimated beams, ... Transit time (interaction time) broadening is more difficult to eliminate. Still, it has recently proved possible to resolve the radiative recoil-induced doublets in the three main hyperfine components of methane at 3.39 pm. This high resolution (2 parts in 1011), derived from an external absorption cell with a 30 cm aperture, nevertheless remained 2 orders of magnitude removed from the natural lifetime line width. Larger cells and associated optics being cumbersome, one is induced to find alternative schemes to reduce transit time broadening and so approach natural line width resolution.
Staff Member, Quantum Physics Division, National Bureau of Standards.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Ye.V. Baklanov, B. Ya. Dubetsky and V. P. Chebotayev, Appl. Phys. 9, 171 (1976); 11, 201 (1976).
N. F. Ramsey, Phys. Rev. 78, 695 (1950).
J. C. Bergquist, S. A. Lee and J. L. Hall, Phys. Rev. Lett. 38, 159 (1977).
Bordé has given analytic expressions for the line shape in the case of three separated Gaussian beams. See C. J. Bordé, C. R. Acad Sci. (Paris) 284B, 101 (1977).
J. L. Hall and C. J. Bordé, Appl. Phys. Lett. 29, 788 (1976).
C. J. Bordé, C. V. Kunasz and J. L. Hall, in preparation.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1977 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Bergquist, J.C., Lee, S.A., Hall, J.L. (1977). Ramsey Fringes in Saturation Spectroscopy. In: Hall, J.L., Carlsten, J.L. (eds) Laser Spectroscopy III. Springer Series in Optical Sciences, vol 7. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-35968-5_17
Download citation
DOI: https://doi.org/10.1007/978-3-540-35968-5_17
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-13485-6
Online ISBN: 978-3-540-35968-5
eBook Packages: Springer Book Archive