Kato Group

Nanoscale Quantum Photonics Laboratory, RIKEN


Nanoscale Quantum Photonics Laboratory is one of the Chief Scientist Laboratories at RIKEN. We also take part in the RIKEN Center for Advanced Photonics as Quantum Optoelectronics Research Team.

Nanoscale Quantum Photonics Laboratory

Control over the quantum nature of photons at the nanoscale opens up unique opportunities in quantum information processing. We study the physics underlying the operation of nanoscale photonic devices to explore new approaches for manipulating quantum states, with focus on devices that make use of individual single-walled carbon nanotubes. By combining microspectroscopy with electronic techniques, we investigate unconventional methods for manipulating the optical properties of nanomaterials within device structures, which should form the basis for future quantum technologies employing integrated quantum photonic circuits.

Quantum Optoelectronics Research Team, RIKEN Center for Advanced Photonics

Advances in device fabrication techniques have enabled integration of individual nanomaterials, where single electrons and single photons could be addressed. We exploit state-of-the-art nanofabrication technologies to develop and engineer optoelectronic devices with novel functionalities that can only be achieved by utilizing the quantum nature of electrons and photons at the nanoscale. We investigate devices that would allow for control over the interactions between electrons and photons at the quantum mechanical level, which would lead to quantum photon sources and optical-to-electrical quantum interfaces.