Title :
The physics of miniature atomic clocks: 0-0 versus "end" resonances
Author :
Jau, Y.-Y. ; Post, A.B. ; Kuzma, N.N. ; Braun, A.M. ; Romalis, M.V. ; Happer, W.
Author_Institution :
Dept. of Phys., Princeton Univ., NJ, USA
Abstract :
We consider advantages of the "end" resonances for the miniaturized alkali vapor-cell atomic clock, namely a higher signal-to-noise ratio (SNR) and a narrower linewidth at high vapor densities. We report our preliminary observations of the unusual phenomenon of light narrowing, in which the rubidium end-resonance linewidth is substantially reduced and the SNR greatly improved as the laser light intensity is increased. Contributions to the total linewidth from other broadening mechanisms are discussed.
Keywords :
atom-molecule collisions; hyperfine structure; rubidium; spin-rotation coupling; Rb; laser light intensity; miniature atomic clocks physics; miniaturized alkali vapor-cell atomic clock; rubidium end resonance linewidth; signal to noise ratio; vapor densities; Atomic beams; Atomic clocks; Atomic measurements; Frequency; Magnetic fields; Optical receivers; Physics; Resonance; Signal to noise ratio; Temperature;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition Jointly with the 17th European Frequency and Time Forum, 2003. Proceedings of the 2003 IEEE International
Print_ISBN :
0-7803-7688-9
DOI :
10.1109/FREQ.2003.1274982
