25 citations · 33 across the 2 of their papers we have counts for
4 papers
Potential for improving the local realization of coordinated universal time with a convolutional neural network
Takehiko Tanabe, Jiaxing Ye, Tomonari Suzuyama +3
The time difference between coordinated universal time (UTC) and a hydrogen maser, which is a master oscillator for the local realization of UTC at the National Metrology Institute…
Uncertainty evaluation of an Yb optical lattice clock at NMIJ
Takumi Kobayashi, Daisuke Akamatsu, Yusuke Hisai +6
We report an uncertainty evaluation of an Yb optical lattice clock with a total fractional uncertainty of , which is mainly limited by the lattice-induce…
Second harmonic generation at 399 nm resonant on the transition of ytterbium using a periodically poled LiNbO waveguide
Takumi Kobayashi, Daisuke Akamatsu, Yoshiki Nishida +4
We demonstrate a compact and robust method for generating a 399-nm light resonant on the transition in ytterbium using a single-pass periodically poled LiNbO$…
Absolute frequency measurements and hyperfine structures of the molecular iodine transitions at 578 nm
Takumi Kobayashi, Daisuke Akamatsu, Kazumoto Hosaka +6
We report absolute frequency measurements of 81 hyperfine components of the rovibrational transitions of molecular iodine at 578 nm using the second harmonic generation of an 1156-…