Shigeo Maruyama | Researchain

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Nano Letters | 2007

Magnetic Brightening of Carbon Nanotube Photoluminescence through Symmetry Breaking

Jonah Shaver; Junichiro Kono; O. Portugall; Vojislav Krstić; Geert L. J. A. Rikken; Yuhei Miyauchi; Shigeo Maruyama; Vasili Perebeinos

We report that symmetry breaking by a magnetic field can drastically increase the photoluminescence quantum yield of single-walled carbon nanotubes, by as much as a factor of 6, at low temperatures. To explain this we have developed a theoretical model based on field-dependent exciton band structure and the interplay of Coulomb interactions and the Aharonov-Bohm effect. This conclusively explains our data as the first experimental observation of dark excitons 5-10 meV below the bright excitons.

Archive | 2004

Method for forming catalyst metal particles for production of single-walled carbon nanotube

Shigeo Maruyama; Yoichi Murakami; Tatsuya Okubo; Shigehrio Yamakita

Archive | 2004

Process for producing monolayer carbon nanotube with uniform diameter

Shigeo Maruyama; Yuhei Miyauchi

Archive | 2003

Process and apparatus for producing single-walled carbon nanotube

Shigeo Maruyama; Shohei Chiashi

Archive | 2004

Array of single-walled carbon nanotubes and process for preparaton thereof

Shigeo Maruyama; Yoichi Murakami

Frontiers in Optics / Laser Science | 2018

Patterned Graphene on SiN Waveguides with NPR for Fiber Laser Mode-Locking

Goran Kovacevic; Takuma Shirahata; Bingchang Wu; Ting-Hui Xiao; Lei Jin; Taiki Inoue; Shigeo Maruyama; Zhenzhou Cheng; S.Y. Set; Shinji Yamashita

Archive | 2014

Modulating diameter of single-walled carbon nanotubes in alco-

Kehang Cui; Xiao Chen; Shohei Chiashi; Shigeo Maruyama

Archive | 2013

Spray coating as a simple method to prepare catalyst for growth of diameter-tunable single-walled ca

Rong Xiang; Haiqiang Zeng; Yuquan Su; Xuchun Gui; Tianzhun Wu; Erik Einarsson; Shigeo Maruyama; Zikang Tang

Archive | 2013

Single-walled carbon nanotube, multilayer film of vertically aligned single-walled carbon nanotube, and production method of the same

Shigeo Maruyama; 茂夫丸山; Theerapol Thurakitseree; ティーラポントゥラキットセーリー

The Proceedings of the Symposium on Micro-Nano Science and Technology | 2011

MP-8 The mechanisms of osmosis studied through molecular dynamics simulations

James Cannon; Daejoong Kim; Shigeo Maruyama; Junichiro Shiomi

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