114 citations · 152 across the 5 of their papers we have counts for
5 papers
Derivation of CPT resonance signals from density-matrix equations with all relevant sublevels of Cs atoms and confirmation of experimental results
K. Matsumoto, S. Kagami, T. Fujisaku +4
Coherent-population-trapping resonance is a quantum interference effect that appears in the two-photon transitions between the ground-state hyperfine levels of alkali atoms and is…
Magnetic-field-insensitive coherent-population-trapping resonances excited by bichromatic linearly polarized fields on the line of Cs
K. Matsumoto, S. Kagami, A. Kirihara +3
We have experimentally demonstrated that magnetic-field-insensitive coherent-population-trapping (CPT) resonances are generated between the ground hyperfine levels on the lin…
Improved frequency measurement of the - clock transition in Sr using the Cs fountain clock at NMIJ as a transfer oscillator
Takehiko Tanabe, Daisuke Akamatsu, Takumi Kobayashi +10
We performed an absolute frequency measurement of the - transition in Sr with a fractional uncertainty of , which is less than one thi…
Generation of incoherent light from a laser diode based on the injection of an emission from a superluminescent diode
Akifumi Takamizawa, Shinya Yanagimachi, Takeshi Ikegami
In this study, incoherent light with a spectral linewidth of 7 nm and 140 mW of power was generated from a laser diode into which incoherent light emitted from a superluminescent d…
Measuring the frequency of a Sr optical lattice clock using a 120-km coherent optical transfer
F. -L. Hong, M. Musha, M. Takamoto +11
We demonstrate a precision frequency measurement using a phase-stabilized 120-km optical fiber link over a physical distance of 50 km. The transition frequency of the 87Sr optical…