Results 21 to 30 of about 5,135 (204)
Formation of plasma around a small meteoroid: 2. Implications for radar head echo [PDF]
, 2016 This paper calculates the spatial distribution of the plasma responsible for radar head echoes by applying the kinetic theory developed in the companion paper. This results in a set of analytic expressions for the plasma density as a function of distance
Dimant, Y. S., Oppenheim, M. M.
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Enhanced spectral sensitivity of a chip-scale photonic-crystal slow-light interferometer [PDF]
, 2016 We experimentally demonstrate that the spectral sensitivity of a Mach-Zehnder (MZ) interferometer can be enhanced through structural slow light. We observe a 20 times enhancement by placing a dispersion-engineered-slow-light photonic-crystal waveguide in
Awan +16 more
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Evaluation on quantum illumination radar with quantum limited amplification
Optics Express, 2023 Based on Quantum illumination (QI) protocol, researcshers have developed prototypes of quantum radar and demonstrated its quantum enhancement. Nevertheless, there are still difficulties in the practical application for QI radar, especially the trade-off between the detection range and quantum enhancement, as well as the construction of the optimized ...
Rongyu, Wei +3 more
openaire +2 more sources
Efficient high-dimensional entanglement imaging with a compressive sensing, double-pixel camera [PDF]
, 2012 We implement a double-pixel, compressive sensing camera to efficiently characterize, at high resolution, the spatially entangled fields produced by spontaneous parametric downconversion.
Howell, John C., Howland, Gregory A.
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Sensors, 2017 Specific emitter identification plays an important role in contemporary military affairs. However, most of the existing specific emitter identification methods haven’t taken into account the processing of uncertain information.
Wen Jiang +3 more
doaj +1 more source
Generation of continuous-wave THz radiation by use of quantum interference [PDF]
, 1999 We propose a scheme for generation of continuous-wave THz radiation. The scheme requires a medium where three discrete states in a $\Lambda $ configuration can be selected, with the THz-frequency transition between the two lower metastable states.
Armstrong +14 more
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Challenges in Open-air Microwave Quantum Communication and Sensing
, 2018 Quantum communication is a holy grail to achieve secure communication among a set of partners, since it is provably unbreakable by physical laws. Quantum sensing employs quantum entanglement as an extra resource to determine parameters by either using ...
Deppe, Frank +3 more
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A New Taxonomy for Symbiotic EM Sensors
, 2017 It is clear that the EM spectrum is now rapidly reaching saturation, especially for frequencies below 10~GHz. Governments, who influence the regulatory authorities around the world, have resorted to auctioning the use of spectrum, in a sense to gauge the
Inggs, Michael, Mishra, Amit
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Coherent states and the classical-quantum limit considered from the point of view of entanglement
, 2012 Three paradigms commonly used in classical, pre-quantum physics to describe particles (that is: the material point, the test-particle and the diluted particle (droplet model)) can be identified as limit-cases of a quantum regime in which pairs of ...
Bell J. S. +11 more
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, 2008 A fundamental Doppler-like but asymmetric wave effect that shifts received signals in frequency in proportion to their respective source distances, was recently described as means for a whole new generation of communication technology using angle and ...
Guruprasad, V.
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