Vibration dependence of the tensor spin–spin and scalar spin–spin hyperfine interactions by precision measurement of hyperfine structures of 127I2 near 532 nm
JOSA B, Vol. 19, Issue 5, pp. 946-953 (2002)
http://dx.doi.org/10.1364/JOSAB.19.000946
Acrobat PDF (168 KB)
Abstract
Hyperfine structures of the R(87)33–0, R(145)37–0, and P(132)36–0 transitions of molecular iodine near 532 nm are measured by observing the heterodyne beat-note signal of two I2-stabilized lasers, whose frequencies are bridged by an optical frequency comb generator. The measured hyperfine splittings are fit to a four-term Hamiltonian, which includes the electric quadrupole, spin–rotation, tensor spin–spin, and scalar spin–spin interactions, with an accuracy of ∼720 Hz. High-accurate hyperfine constants are obtained from this fit. Vibration dependences of the tensor spin–spin and scalar spin–spin hyperfine constants are determined for molecular iodine, for the first time to our knowledge. The observed hyperfine transitions are good optical frequency references in the 532-nm region.
© 2002 Optical Society of America
OCIS Codes
(020.2930) Atomic and molecular physics : Hyperfine structure
(120.3940) Instrumentation, measurement, and metrology : Metrology
(140.3580) Lasers and laser optics : Lasers, solid-state
(230.4110) Optical devices : Modulators
(300.6360) Spectroscopy : Spectroscopy, laser
(300.6390) Spectroscopy : Spectroscopy, molecular
Citation
Feng-Lei Hong, Yun Zhang, Jun Ishikawa, Atsushi Onae, and Hirokazu Matsumoto, "Vibration dependence of the tensor spin–spin and scalar spin–spin hyperfine interactions by precision measurement of hyperfine structures of 127I2 near 532 nm," J. Opt. Soc. Am. B 19, 946-953 (2002)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-19-5-946
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