Resolution of photon-recoil structure of the 6573-Å calcium line in an atomic beam with optical Ramsey fringes
- 15 June 1979
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 34 (12) , 850-852
- https://doi.org/10.1063/1.90690
Abstract
The photon‐recoil components of the Ca 6573‐Å line have been resolved using the three‐zone optical Ramsey interference technique with an atomic beam. Linewidths as narrow as 3 kHz HWHM (line Q of 8×1010) are reported for zone separations up to 7 cm. An indication of the light‐shift‐induced contraction of the recoil splitting predicted by C.J. Bordé is obtained. Techniques are discussed which should lead to an optical wavelength/frequency standard with an accuracy of better than 10−14.Keywords
This publication has 7 references indexed in Scilit:
- Saturated Absorption with Spatially Separated Laser Fields: Observation of Optical "Ramsey" FringesPhysical Review Letters, 1977
- Direct Optical Resolution of the Recoil Effect Using Saturated Absorption SpectroscopyPhysical Review Letters, 1976
- Problems of atomic frequency standards of extreme accuracy and a new atomic beam interaction geometryOptics Communications, 1976
- Laser saturated absorption of the calcium 1S0-3P1 transition at 6573 ÅOptics Communications, 1976
- Non-linear ramsey resonance in the optical regionApplied Physics A, 1976
- Fast frequency stabilization of a cw dye laserApplied Physics Letters, 1975
- Evaluation and Operation of Atomic Beam Tube Frequency Standards Using Time Domain Velocity Selection ModulationMetrologia, 1973