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A quantum-enhanced wide-field phase imager.

ABSTRACT: Quantum techniques can be used to enhance the signal-to-noise ratio in optical imaging. Leveraging the latest advances in single-photon avalanche diode array cameras and multiphoton detection techniques, here, we introduce a supersensitive phase imager, which uses space-polarization hyperentanglement to operate over a large field of view without the need of scanning operation. We show quantum-enhanced imaging of birefringent and nonbirefringent phase samples over large areas, with sensitivity improvements over equivalent classical measurements carried out with equal number of photons. The potential applicability is demonstrated by imaging a biomedical protein microarray sample. Our technology is inherently scalable to high-resolution images and represents an essential step toward practical quantum-enhanced imaging.

SUBMITTER: Camphausen R

PROVIDER: S-EPMC8598016 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature

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A quantum-enhanced wide-field phase imager.

Camphausen Robin R Cuevas Álvaro Á Duempelmann Luc L Terborg Roland A RA Wajs Ewelina E Tisa Simone S Ruggeri Alessandro A Cusini Iris I Steinlechner Fabian F Pruneri Valerio V

Science advances 20211117 47

Quantum techniques can be used to enhance the signal-to-noise ratio in optical imaging. Leveraging the latest advances in single-photon avalanche diode array cameras and multiphoton detection techniques, here, we introduce a supersensitive phase imager, which uses space-polarization hyperentanglement to operate over a large field of view without the need of scanning operation. We show quantum-enhanced imaging of birefringent and nonbirefringent phase samples over large areas, with sensitivity im ...[more]

PMID: 34788099

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