Abstract
We report observation of query pulse length dependent Ramsey interference (QPLD-RI), using pulsed Raman excitation in rubidium vapor. This is observed when a long, attenuated query pulse is used during pulsed Raman excitation. We explain the physical mechanism behind the QPLDRI using a Bloch vector model. We also use numerical solutions to timedependent density matrix equations to simulate this interference effect, showing qualitative agreement with experimental results. Presence of such interference could create a potential source of error in a vapor cell Raman clock constructed using frequency-domain Ramsey interference (FDRI).
| Original language | English (US) |
|---|---|
| Pages (from-to) | 22388-22401 |
| Number of pages | 14 |
| Journal | Optics Express |
| Volume | 19 |
| Issue number | 23 |
| DOIs | |
| State | Published - Nov 7 2011 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics