26 citations · 65 across the 7 of their papers we have counts for
7 papers
Hyperfine transition induced by atomic motion above a paraffin-coated magnetic film
Naota Sekiguchi, Hiroaki Usui, Atsushi Hatakeyama
We measured transitions between the hyperfine levels of the electronic ground state of potassium-39 atoms (transition frequency: 460 MHz) as the atoms moved through a periodic magn…
Multi-state interferometric measurement of nonlinear AC Stark shift
Junnosuke Takai, Kosuke Shibata, Naota Sekiguchi +1
We demonstrate measurement of quadratic AC Stark shifts between Zeeman sublevels in an Rb Bose--Einstein condensate using a multi-state atomic interferometer. The interferom…
Quantum lock-in detection of a vector light shift
Kosuke Shibata, Naota Sekiguchi, Takuya Hirano
We demonstrate detection of a vector light shift (VLS) using the quantum lock-in method. The method offers precise and accurate VLS measurement without being affected by real magne…
Sensitive BEC magnetometry with optimized probing
Naota Sekiguchi, Aki Torii, Hiroyuki Toda +4
An improved spatial magnetometer using a spinor Bose-Einstein condensate of Rb atoms is realized utilizing newly developed two-polarization phase contrast imaging. The optic…
Scattering of an alkali atomic beam on anti-spin-relaxation-coatings
Naota Sekiguchi, Kazane Okuma, Hiroaki Usui +1
We performed scattering experiments using a rubidium (Rb) atomic beam on paraffin films and measured the angular and velocity distributions of scattered atoms. The paraffin films w…
Spectroscopic study of a diffusion-bonded sapphire cell for hot metal vapors
Naota Sekiguchi, Takumi Sato, Kiyoshi Ishikawa +1
Characteristics of a diffusion-bonded sapphire cell for optical experiments with hot metal vapors were investigated. The sapphire cell consisted of sapphire-crystal plates and a bo…