Ramsey Fringes in Saturation Spectroscopy
| Author | |
|---|---|
| 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. |
| Year of Conference |
1977
|
| Start Page or Article ID |
142-148
|
| Date Published |
1977-01
|
| Publisher |
Springer Berlin Heidelberg
|
| Conference Location |
Berlin, Heidelberg
|
| ISBN Number |
978-3-540-35968-5
|
| DOI |
10.1007/978-3-540-35968-5_17
|
| Download citation | |
| Publication Status | |
| JILA PI | |
| JILA Topics | |
Conference Proceedings
|
The Physics Frontiers Centers (PFC) program supports university-based centers and institutes where the collective efforts of a larger group of individuals can enable transformational advances in the most promising research areas. The program is designed to foster major breakthroughs at the intellectual frontiers of physics by providing needed resources such as combinations of talents, skills, disciplines, and/or specialized infrastructure, not usually available to individual investigators or small groups, in an environment in which the collective efforts of the larger group can be shown to be seminal to promoting significant progress in the science and the education of students. PFCs also include creative, substantive activities aimed at enhancing education, broadening participation of traditionally underrepresented groups, and outreach to the scientific community and general public.