A beatnote between the Ca and Hg+ optical frequency standards via a mode-locked fs-laser frequency comb demonstrates the highest frequency stability measured to date. The high stability accelerates evaluation of the Ca standard's systematic shifts.
© 2005 Optical Society of America
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3940) Instrumentation, measurement, and metrology : Metrology
(300.0300) Spectroscopy : Spectroscopy
(300.6320) Spectroscopy : Spectroscopy, high-resolution
G. Wilpers, C. W. Oates, S. A. Diddams, A. Bartels, W. H. Oskay, J. C. Bergquist, and L. Hollberg, "Ultra-High Stability Optical Frequency Standard Based on Laser-Cooled Neutral Calcium," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper CWJ4.
References are not available for this paper.