Aki Torii   Kosuke Shibata   Yujiro Eto   Takuya Hirano   
Optics Express 30(15) 26120-26120 2022年7月 [査読有り]
We report on the waveguide-based generation of pulsed squeezed light at 795 nm, suitable for quantum enhanced measurements with rubidium atoms. Pulsed ultraviolet second harmonic light with a power of more than 400 mW is produced using a periodica...
Japanese Journal of Applied Physics 60(5) 2021年5月 [査読有り]
Second-harmonic generation (SHG) using periodically poled material in the high-conversion regime is investigated experimentally and theoretically. In the experiment, we use nanosecond pulses and periodically poled MgO:LiNbO3 waveguides with two le...
Yujiro Eto   Yun Zhang   Takuya Hirano   
OPTICS EXPRESS 19(2) 1360-1366 2011年1月
We experimentally demonstrate transporting continuous quantum variables of individual light pulses at telecommunication wavelengths by using continuous-variable Bell measurements and post-processing displacement techniques. Time-domain pulsed homo...
We investigate controlled phase separation of a binary Bose-Einstein condensate in the proximity of a mixed-spin-channel Feshbach resonance in the vertical bar F = 1, m(F) = +1 > and vertical bar F = 2, mF = -1 > states of Rb-87 at a magneti...