Abstract
Pulsed coherent population trapping in atomic vapor provides a convenient method for generating frequency narrowed atomic resonance using Ramsey interference. Here, we present our experimental results showing high-contrast and sub-kilohertz Ramsey interference fringes produced by coherently prepared 85Rb atoms using Raman excitation formed in D1 line transitions. A test system for atomic clock has been constructed to measure light shift for both continuous and pulsed Raman excitation cases. Our measurements show that light shift measured using pulsed Raman excitation, is reduced compared to the continuous excitation case. Our ability to measure light shift is currently limited by the resolution of the frequency counter, and performance of the locking electronics used.
Original language | English (US) |
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Title of host publication | Advances in Slow and Fast Light IV |
Volume | 7949 |
DOIs | |
State | Published - May 13 2011 |
Event | Advances in Slow and Fast Light IV - San Francisco, CA, United States Duration: Jan 23 2011 → Jan 25 2011 |
Other
Other | Advances in Slow and Fast Light IV |
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Country | United States |
City | San Francisco, CA |
Period | 1/23/11 → 1/25/11 |
Keywords
- atomic clock
- coherent population trapping
- Ramsey interference
- rubidium vapor
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics