Institucio Catalana De Recerca I Estudis Avancats

Fundacio Institut De Ciencies Fotoniques

Consiglio Nazionale Delle Ricerche

Politecnico Di Milano

Morgan Mitchell

Vito Giovanni Lucivero

Valerio Pruneri

Roberto Osellame

Jakob Reichel

Carlos Abellan Sanchez

Giacomo Corrielli

Andrea Zanoni

Provided is a cell for optically-pumped atomic magnetic gradiometry that includes a first confining chamber containing alkali atoms and configured to receive a co-propagating pump and probe light beam, including pump light polarized to spin polarize the alkali atoms, and at least a second confining chamber containing alkali atoms, distanced from the first confining chamber, and which is also configured to receive a co-propagating pump and probe light beam. Also provided are an optically-pumped atomic magnetic gradiometer including the presently disclosed and a system that includes the presently disclosed gradiometer and a microscopy system.

Cavity cell for an optically-pumped atomic magnetometer and a magnetic gradiometer, and a system comprising the gradiometer and a microscopy system

Provided is an atomic vapor cell, for atomic or molecular spectroscopy, optical pumping, and/or spin-based atomic sensing, that includes a host substrate and defined there within a buried or non-buried chamber laser written in the host substrate without the need of a mask or photoresist, with either planar or three-dimensional geometry, and intended to contain an atomic vapor. Also provided are an integrated atomic/photonic device and an apparatus, in both cases including the presently disclosed atomic vapor cell, and a method for fabricating the presently disclosed atomic vapor cell.

Atomic vapor cell, an integrated atomic/photonic device and apparatus comprising the atomic vapor cell, and a method for fabricating an atomic vapor cell

A method for physical random number generation includes the steps of: modulating the gain of a vertical-cavity surface-emitting laser periodically from the lower threshold to the upper threshold and back; maintaining the gain per round trip positive for a longer period than the round trip time of the cavity; maintaining the net gain per round trip negative for a longer period than the round trip time of the cavity, in order to create optical pulses of random amplitude; detecting the optical pulses; converting the optical pulses into electrical analog pulses; and digitising the electrical analog pulses into random numbers.

Method for physical random number generation using a vertical cavity surface emitting laser

Growing community of inventors

CASTELLDEFELS, Spain

Morgan Mitchell