Publication

Quantum imaging with SPAD arrays

Claudio Bruschini
2019
Talks

Abstract

We present a novel quantum imaging modality based on photon correlation measurement with a single photon avalanche diode (SPAD) array in a confocal setup. This enables unprecedented simplicity in realization of photon correlation measurements, demonstrated via measuring of second and third order photon correlations of quantum light sources, and the implementation of a quantum based super-resolution technique.

Official source

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Claudio Bruschini
2019
Talks

Abstract

Official source

Related concepts (23)

Quantum entanglement

Quantum entanglement is the phenomenon that occurs when a group of particles are generated, interact, or share spatial proximity in a way such that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance. The topic of quantum entanglement is at the heart of the disparity between classical and quantum physics: entanglement is a primary feature of quantum mechanics not present in classical mechanics.

Photon

A photon () is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are massless, so they always move at the speed of light in vacuum, 299792458m/s (or about ). The photon belongs to the class of boson particles. As with other elementary particles, photons are best explained by quantum mechanics and exhibit wave–particle duality, their behavior featuring properties of both waves and particles.

Quantum dot

Quantum dots (QDs) – also called semiconductor nanocrystals, are semiconductor particles a few nanometres in size, having optical and electronic properties that differ from those of larger particles as a result of quantum mechanics. They are a central topic in nanotechnology and materials science. When the quantum dots are illuminated by UV light, an electron in the quantum dot can be excited to a state of higher energy. In the case of a semiconducting quantum dot, this process corresponds to the transition of an electron from the valence band to the conductance band.

Related publications (3)

Quantum imaging with SPAD arrays

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