30 citations · 82 across the 6 of their papers we have counts for
6 papers
Observation of Acoustically Induced Dressed States of Rare-Earth Ions
Ryuichi Ohta, Gregoire Lelu, Xuejun Xu +9
Acoustically induced dressed states of long-lived erbium ions in a crystal are demonstrated. These states are formed by rapid modulation of two-level systems via strain induced by…
Near-field cavity optomechanical coupling in a compound semiconductor nanowire
Motoki Asano, Guoqiang Zhang, Takehiko Tawara +2
A III-V compound semiconductor nanowire is an attractive material for a novel hybrid quantum interface that interconnects photons, electrons, and phonons through a wavelength-tunab…
Rare-earth-mediated opto-mechanical system in the reversed dissipation regime
Ryuichi Ohta, Loïc Herpin, Victor M. Bastidas +3
Strain-mediated interaction between phonons and telecom photons is demonstrated using excited states of erbium ions embedded in a mechanical resonator. Owing to the extremely long-…
Strain-induced exciton decomposition and anisotropic lifetime modulation in a GaAs micromechanical resonator
Ryuichi Ohta, Hajime Okamoto, Takehiko Tawara +2
We demonstrate mechanical modulations of the exciton lifetime by using vibrational strain of a gallium arsenide (GaAs) resonator. The strain-induced modulations have anisotropic de…
Coherent coupling of dark and bright excitons with vibrational strain
Ryuichi Ohta, Hajime Okamoto, Takehiko Tawara +2
In many physical systems, there are specific electronic states called dark state that are protected from the rapid radiative decay imposed by the system symmetry. Although their lo…
Charged exciton emission at 1.3 m from single InAs quantum dots grown by metalorganic chemical vapor deposition
N. I. Cade, H. Gotoh, H. Kamada +4
We have studied the emission properties of self-organized InAs quantum dots (QDs) grown in an InGaAs quantum well by metalorganic chemical vapor deposition. Low-temperature photolu…