45 citations · 68 across the 3 of their papers we have counts for
4 papers
High efficiency dark-to-bright exciton conversion in carbon nanotubes
A. Ishii, H. Machiya, Y. K. Kato
We report that dark excitons can have a large contribution to the emission intensity in carbon nanotubes due to an efficient exciton conversion from a dark state to a bright state.…
Super-Resolution Fluorescence Imaging of Carbon Nanotubes Using a Nonlinear Excitonic Process
K. Otsuka, A. Ishii, Y. K. Kato
Highly efficient exciton-exciton annihilation process unique to one-dimensional systems is utilized for super-resolution imaging of air-suspended carbon nanotubes. Through the comp…
Organic molecular tuning of many-body interaction energies in air-suspended carbon nanotubes
S. Tanaka, K. Otsuka, K. Kimura +4
We investigate adsorption effects of copper phthalocyanine molecules on excitons and trions in air-suspended carbon nanotubes. Using photoluminescence excitation spectroscopy, we o…
Room-temperature single photon emission from micron-long air-suspended carbon nanotubes
A. Ishii, T. Uda, Y. K. Kato
Statistics of photons emitted by mobile excitons in individual carbon nanotubes are investigated. Photoluminescence spectroscopy is used to identify the chiralities and suspended l…