Semiconductor Nanophotonics

General information

We investigate the physics and applications of nanophotonic structures and devices based on III-V semiconductors. The ultimate goal is the control of light generation, propagation and detection down to the single-photon level for photonic quantum information processing. We also study nanophotonic devices for application in optical communications and sensing. The main current research threads are described below.

Integrated Quantum Photonics

We develop and investigate quantum photonic integrated circuits where single photons are generated, processed and detected on a single chip. We employ single semiconductor quantum dots in photonic crystal cavities as single-photon sources, GaAs waveguides to route photons on the chip, nanomechanical structures for their control and nanowire superconducting single-photon detectors for integrated measurements (for more information please see this tutorial). We also explore novel approaches to the real-time control of the exciton-photon interaction in solid-state cavity QED systems via the dynamic modulation of the vacuum field.

Nano-opto-electro-mechanical systems

We investigate nano-opto-electro-mechanical systems where electrons and photons are coupled via the mechanical degree of freedom. An example is given by photonic crystal cavities that can be tuned by nanomechanical actuation. Taking advantage of the strong electrical-mechanical-optical coupling which occurs at the nanoscale, we aim at developing a new generation of integrated optical sensors, modulators and switches with unprecedented functionality and performance.

Team members

Key publications

 

For a full publication list, please see Prof. Fiore's Google scholar profile.