39 citations · 136 across the 7 of their papers we have counts for
7 papers
Experimental realization of supergrowing fields
Sethuraj K. R., Tathagata Karmakar, S. A. Wadood +2
Supergrowth refers to the local amplitude growth rate of a signal being faster than its fastest Fourier mode. In contrast, superoscillation pertains to the variation of the phase.…
Coherence effects on estimating general sub-Rayleigh object distribution moments
Kevin Liang, S. A. Wadood, A. N. Vamivakas
Quantum Fisher information and signal-to-noise ratio bounds are derived for the estimation of moments of general partially coherent objects. Under an asymptotic analysis in the sub…
Experimental demonstration of superresolution of partially coherent light sources using parity sorting
S. A. Wadood, Kevin Liang, Yiyu Zhou +8
Analyses based on quantum metrology have shown that the ability to localize the positions of two incoherent point sources can be significantly enhanced through the use of mode sort…
Confocal super-resolution microscopy based on a spatial mode sorter
Katherine K. M. Bearne, Yiyu Zhou, Boris Braverman +6
Spatial resolution is one of the most important specifications of an imaging system. Recent results in quantum parameter estimation theory reveal that an arbitrarily small distance…
Quantification and observation of genuine three-party coherence: A solution based on classical optics
X. -F. Qian, S. A. Wadood, A. N. Vamivakas +1
We introduce a quantification of genuine three-party pure-state coherence for wave fields, classical and quantum, by borrowing concepts from classical optics. The tensor structure…
Modal Majorana sphere and hidden symmetries of structured-Gaussian beams
R. Gutiérrez-Cuevas, S. A. Wadood, A. N. Vamivakas +1
Structured-Gaussian beams are shown to be fully and uniquely represented by a collection of points (or constellation) on the surface of the modal Majorana sphere, providing a compl…
Influence of Vacuum modes on Photodetection
S. A. Wadood, J. T. Schultz, A. Nick Vamivakas +1
Photodetection is a process in which an incident field induces a polarization current in the detector. The interaction of the field with this induced current excites an electron in…