Kazunari Matsuda, Tadashi Inoue, Yoichi Murakami, Shigeo Maruyama, Yoshihiko Kanemitsu
recombinations and exciton fine structures studied by
Kazunari Matsuda, Tadashi Inoue, Yoichi Murakami, Shigeo Maruyama, Yoshihiko Kanemitsu
fine structures in a single carbon nanotube
Matsunaga, Ryusuke, Miyauchi, Yuhei, Matsuda, Kazunari, Kanemitsu, Yoshihiko
We investigated the magnetic and temperature dependence of the bright and dark exciton luminescence spectra in single carbon nanotubes. We found that the phonon-induced exciton scattering rate from...
Miyauchi, Yuhei, Hirori, Hideki, Matsuda, Kazunari, Kanemitsu, Yoshihiko
We evaluated the radiative lifetimes and the one-dimensional exciton coherence lengths in single-walled carbon nanotubes (SWNTs). The radiative lifetimes determined from simultaneous measurements of...
Miyauchi, Yuhei, Matsuda, Kazunari, Kanemitsu, Yoshihiko
We studied the nonlinear time-resolved luminescence signals due to multiexciton recombination processes in single-walled carbon nanotubes (SWNTs) using femtosecond excitation correlation (FEC)...
Yoshikawa, Kohei, Matsunaga, Ryusuke, Matsuda, Kazunari, Kanemitsu, Yoshihiko
We studied the temperature and chirality dependence of the photoluminescence (PL) linewidth of single carbon nanotubes to clarify the mechanism of exciton dephasing. The PL linewidth of a single...
Evidence for dark excitons in a single carbon nanotube due to the Aharonov-Bohm effect (2008)
Matsunaga, Ryusuke, Matsuda, Kazunari, Yoshihiko, Kanemitsu
We studied exciton structures and the Aharonov-Bohm effect in a single carbon nanotube using micro-photoluminescence (PL) spectroscopy under a magnetic field at low temperatures. A single sharp PL...
Exciton energy transfer between the inner and outer tubes in double-walled carbon nanotubes (2008)
Hirori, Hideki, Matsuda, Kazunari, Kanemitsu, Yoshihiko
We have studied photoluminescence (PL) spectrum and dynamics of the inner nanotubes in double-walled carbon nanotubes (DWNTs) and compared PL properties between DWNTs and single-walled carbon...
Carrier multiplication in carbon nanotubes studied by femtosecond pump-probe spectroscopy (2008)
Ueda, Akihiro, Matsuda, Kazunari, Tayagaki, Takeshi, Kanemitsu, Yoshihiko
Carbon nanotubes are one of the excellent materials for studying the many-body effects of excitons because of their unique band structures and large exciton binding energies. We studied exciton...
Exciton fine structure in a single carbon nanotube revealed through spectral diffusion (2008)
Matsuda, Kazunari, Inoue, Tadashi, Murakami, Yoichi, Maruyama, Shigeo, Kanemitsu, Yoshihiko
We studied the spectral diffusion land exciton fine structures of single-walled carbon nanotubes (SWNTs) by using single carbon nanotube spectroscopy. Two types of single nanotube photoluminescence...
Hosoki, Koshin, Tayagaki, Takeshi, Yamamoto, Shinpei, Matsuda, Kazunari, Kanemitsu, Yoshihiko
We studied the dynamics of photoluminescence (PL) and energy transfer in close-packed monolayer films of CdSe and Au nanoparticles (NPs) assembled using the Langmuir-Blodgett technique. The PL...
Exciton fine structure in a single carbon nanotube revealed through spectral diffusion (2008)
Matsuda, Kazunari, Inoue, Tadashi, Murakami, Yoichi, Maruyama, Shigeo, Kanemitsu, Yoshihiko
We studied the spectral diffusion and exciton fine structures of single-walled carbon nanotubes (SWNTs) by using single carbon nanotube spectroscopy. Two types of single nanotube photoluminescence...
Matsuda, Kazunari, Ito, Yuichi, Kanemitsu, Yoshihiko
We studied the mechanism of the photoluminescence (PL) enhancement and quenching of single CdSe/ZnS nanocrystals on rough Au surfaces. Single nanocrystal spectroscopy revealed that the PL enhancement...
individual single-walled (2008)
Tadashi Inoue, Kazunari Matsuda, Yoichi Murakami, Shigeo Maruyama, Yoshihiko Kanemitsu
Diameter dependence of exciton-phonon interaction in
Exciton dephasing and multiexciton recombinations in a single carbon nanotube (2008)
Kazunari Matsuda, Tadashi Inoue, Yoichi Murakami, Shigeo Maruyama, Yoshihiko Kanemitsu
We studied the temperature and excitation intensity dependence of exciton luminescence in individual single-walled carbon nanotubes (SWNTs) using single nanotube photoluminescence (PL) spectroscopy....
Exciton dephasing and multiexciton recombinations in a single carbon nanotube (2008)
Matsuda, Kazunari, Inoue, Tadashi, Murakami, Yoichi, Maruyama, Shigeo, Kanemitsu, Yoshihiko
We studied the temperature and excitation intensity dependence of exciton luminescence in individual single-walled carbon nanotubes (SWNTs) using single nanotube photoluminescence (PL) spectroscopy....
Exciton dephasing and multiexciton recombinations in a single carbon nanotube (2008)
Matsuda, Kazunari, Inoue, Tadashi, Murakami, Yoichi, Maruyama, Shigeo, Kanemitsu, Yoshihiko
We studied the temperature and excitation intensity dependence of exciton luminescence in individual single-walled carbon nanotubes (SWNTs) using single nanotube photoluminescence (PL) spectroscopy....
Ito, Yuichi, Matsuda, Kazunari, Kanemitsu, Yoshihiko
We have studied the mechanism of the photoluminescence (PL) enhancement and quenching of single CdSe/ZnS core/shell nanocrystals on Au surfaces by means of single nanocrystal spectroscopy. The on-off...
Hirori, Hideki, Matsuda, Kazunari, Miyauchi, Yuhei, Maruyama, Shigeo, Kanemitsu, Yoshihiko
Photoluminescence (PL) dynamics in single-walled carbon nanotubes (SWNTs) has been studied by the femtosecond excitation correlation method with a 150 fs time resolution. The SWNT samples were...
Hirori, Hideki, Matsuda, Kazunari, Miyauchi, Yuhei, Maruyama, Shigeo, Kanemitsu, Yoshihiko
Photoluminescence (PL) dynamics in single-walled carbon nanotubes (SWNTs) has been studied by the femtosecond excitation correlation method with a 150 fs time resolution. The SWNT samples were...
Inoue, Tadashi, Matsuda, Kazunari, Murakami, Yoichi, Maruyama, Shigeo, Kanemitsu, Yoshihiko
We have investigated the diameter dependence of the exciton luminescence linewidth in individual single-walled carbon nanotubes (SWNTs) by means of microphotoluminescence (ยต-PL) spectroscopy. The...
correlation spectroscopy: exciton localization (2006)
Hideki Hirori, Kazunari Matsuda, Yuhei Miyauchi, Shigeo Maruyama, Yoshihiko Kanemitsu
dynamics of single-walled carbon nanotubes revealed by femtosecond excitation
Ishizumi, Atsushi, Matsuda, Kazunari, Saiki, Toshiharu, White, C. W., Kanemitsu, Yoshihiko
We have fabricated Mn-doped CdS (CdS:Mn) nanocrystals embedded in Al2O3 matrices by sequential ion implantation and studied their photoluminescence (PL) properties by a scanning near-field optical...
Nano-optical probing of exciton wave-functions confined in a GaAs quantum dot (2004)
Saiki, Toshiharu, Matsuda, Kazunari, Nomura, Shintaro, Mihara, Masaru, Aoyagi, Yoshinobu, Nair, Selvakumar, ...
We have enhanced the performance of near-field scanning optical microscopy (NSOM) in terms of the spatial resolution and the sensitivity in signal detection. A careful preparation of an aperture-NSOM...