A comparison between the measurement of quantum spatial correlations using qCMOS photon-number resolving and electron multiplying CCD camera technologies

K Roberts, O Wolley, T Gregory, MJ Padgett - Scientific Reports, 2024 - nature.com
Cameras with single-photon sensitivities can be used to measure the spatial correlations
between the photon-pairs that are produced by parametric down-conversion. Even when …

Orthogonal spatial coding with stimulated parametric down-conversion

Y Xu, S Tang, A Nicholas Black, RW Boyd - Optics Express, 2023 - opg.optica.org
Orthogonal optical coding is widely used in classical multi-user communication networks.
Using the phase conjugation property of stimulated parametric down-conversion, we extend …

Quantum cryptography with structured photons

A Forbes, M Youssef, S Singh, I Nape, B Ung - Applied Physics Letters, 2024 - pubs.aip.org
Quantum photonic platforms have proven to be essential in realizing fundamentally secure
quantum transfer of information, with commercially ready systems already deployed in …

Optimising detector readout settings for the detection of spatial correlations between SPDC photon-pairs

K Roberts, T Gregory, O Wolley, MJ Padgett - Scientific Reports, 2025 - nature.com
SPDC photon-pairs exhibit spatial correlations which can be measured using detector
arrays sensitive to single photons. However, these detector arrays have multiple readout …

Transmission of quantum-secured images

S Johnson, J Rarity, M Padgett - Scientific Reports, 2024 - nature.com
The secure transmission of an image can be accomplished by encoding the image
information, securely communicating this information, and subsequently reconstructing the …

Secure communication based on sensing of undetected photons

J Sternberg, J Voisin, C Roux… - EPJ Web of …, 2024 - epj-conferences.org
In this paper, we introduce a secure optical communication protocol that harnesses quantum
correlation within entangled photon pairs. A message written by acting on one of the …

Optical information hiding for different surface images

ZK Mi, YS Zhu, YP Zhu, TH Zhang, Z Huang, F Wu… - Applied Optics, 2024 - opg.optica.org
Optical hiding often requires the selection of specific artificial optical components as carriers,
which results in poor versatility of the carriers and high costs for the hiding system. To …

Quantum ghost imaging of undisturbed live plants

DP Ryan, KA Meier, RH Sandoval… - … and Sensing (LBIS) …, 2024 - spiedigitallibrary.org
The near infrared (NIR) and mid-infrared (MIR) spectral regions contain absorption features
that can identify specific molecular bonds and chemical species in a sample. For example …

Sha** the spatial correlations of photon pairs for quantum imaging applications

P Cameron - 2024 - theses.gla.ac.uk
The field of quantum imaging exploits the quantum properties of light to surpass
fundamental classical limits and to develop novel imaging modalities. For example, the use …

Transmission of hidden images within noise

S Johnson, A McMillan, S Frick… - … Precision Metrology II, 2024 - spiedigitallibrary.org
The secure transmission of an image can be accomplished by encoding the image
information, securely communicating this information, and subsequently reconstructing the …