Precision optical-frequency-difference measurements
- 1 March 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 37 (5), 1802-1805
- https://doi.org/10.1103/physreva.37.1802
Abstract
We demonstrate a new form of interferometry which is independent of Maxwell’s equations and measures optical frequency differences rather than wavelength ratios. Stable laser and electro-optic FM sideband techniques make a direct measurement of the mode spacing of a high finesse cavity with subhertz precision (0.4 Hz rms) over a 50-THz region. Experiments indicate errors below over a 50-THz bandwidth and that improvements of several orders of magnitude are possible. New variables for interferometry simplify the use of multilayer dielectric mirrors and are directly measurable in situ. .AE
Keywords
This publication has 17 references indexed in Scilit:
- New value for the Rydberg constant from the hydrogen Balmer-βtransitionPhysical Review Letters, 1987
- Determination of the Rydberg Constant by Doppler-Free Two-Photon Spectroscopy of Hydrogen Rydberg StatesEurophysics Letters, 1986
- Precise wavelength measurements and optical phase shifts II ApplicationsJournal of the Optical Society of America A, 1986
- Interferometric measurement of the 1-2transition frequency in atomic hydrogenPhysical Review Letters, 1986
- Measurement of the 1S-2Sfrequency in atomic hydrogenPhysical Review Letters, 1986
- Precise wavelength measurements and optical phase shifts I General theoryJournal of the Optical Society of America A, 1985
- Direct frequency measurement of the I_2-stabilized He–Ne 473-THz (633-nm) laserOptics Letters, 1983
- Frequency-modulation spectroscopy: a new method for measuring weak absorptions and dispersionsOptics Letters, 1980
- Frequency determination of visible laser light by interferometric comparison with upconverted CO_2 laser radiationApplied Optics, 1978
- Laser wavelength comparison by high resolution interferometryApplied Optics, 1976