65 citations · 184 across the 6 of their papers we have counts for
6 papers
Time-domain Ramsey interferometry with interacting Rydberg atoms
Christian Sommer, Guido Pupillo, Nobuyuki Takei +4
We theoretically investigate the dynamics of a gas of strongly interacting Rydberg atoms subject to a time-domain Ramsey interferometry protocol. The many-body dynamics is governed…
Dispersion cancellation in high resolution two-photon interference
Masayuki Okano, Ryo Okamoto, Akira Tanaka +3
The dispersion cancellation observed in Hong-Ou-Mandel (HOM) interference between frequency-entangled photon pairs has been the basis of quantum optical coherence tomography and qu…
Noncollinear parametric fluorescence by chirped quasi-phase matching for monocycle temporal entanglement
Akira Tanaka, Ryo Okamoto, Hwan Hong Lim +9
Quantum entanglement of two photons created by spontaneous parametric downconversion (SPDC) can be used to probe quantum optical phenomena during a single cycle of light. Harris [P…
Coupling of ultrathin tapered fibers with high-Q microsphere resonators at cryogenic temperatures and observation of phase-shift transition from undercoupling to overcoupling
Masazumi Fujiwara, Tetsuya Noda, Akira Tanaka +3
We cooled ultrathin tapered fibers to cryogenic temperatures and controllably coupled them with high-Q microsphere resonators at a wavelength close to the optical transition of dia…
Generation of broadband spontaneous parametric fluorescence using multiple bulk nonlinear crystals
Masayuki Okano, Ryo Okamoto, Akira Tanaka +2
We propose a novel method for generating broadband spontaneous parametric fluorescence by using a set of bulk nonlinear crystals (NLCs). We also demonstrate this scheme experimenta…
Phase shift spectra of a fiber-microsphere system at the single photon level
Akira Tanaka, Takeshi Asai, Kiyota Toubaru +4
We succeeded in measuring phase shift spectra of a microsphere cavity coupled with a tapered fiber using a weak coherent probe light at the single photon level. We utilized a taper…