129 citations · 273 across the 5 of their papers we have counts for
5 papers
Exciton diffusion, end quenching, and exciton-exciton annihilation in individual air-suspended carbon nanotubes
A. Ishii, M. Yoshida, Y. K. Kato
Luminescence properties of carbon nanotubes are strongly affected by exciton diffusion, which plays an important role in various nonradiative decay processes. Here we perform photo…
Gate-controlled generation of optical pulse trains using individual carbon nanotubes
M. Jiang, Y. Kumamoto, A. Ishii +3
We report on optical pulse-train generation from individual air-suspended carbon nanotubes under an application of square-wave gate voltages. Electrostatically-induced carrier accu…
Ultralow mode-volume photonic crystal nanobeam cavities for high efficiency coupling to individual carbon nanotube emitters
R. Miura, S. Imamura, R. Ohta +6
We report on high efficency coupling of individual air-suspended carbon nanotubes to silicon photonic crystal nanobeam cavities. Photoluminescence images of dielectric- and air-mod…
Stark effect of excitons in individual air-suspended carbon nanotubes
M. Yoshida, Y. Kumamoto, A. Ishii +2
We investigate electric-field induced redshifts of photoluminescence from individual single-walled carbon nanotubes. The shifts scale quadratically with field, while measurements w…
Weyl law for open systems with sharply divided mixed phase space
Akihiro Ishii, Akira Akaishi, Akira Shudo +1
A generalization of the Weyl law to systems with a sharply divided mixed phase space is proposed. The ansatz is composed of the usual Weyl term which counts the number of states in…