Quantum confinement has enabled the development of modern optoelectronic devices, including the quantum cascade laser, based on the control of intersubband plasmons. Here, Yanagi et al. observe intersubband plasmons in gated and aligned carbon nanotubes with applications in carbon-based optoelectronics and fundamental physics.
- Kazuhiro Yanagi
- Ryotaro Okada
- Junichiro Kono
