Results 21 to 30 of about 1,485,171 (302)
A room-temperature, high-sensitivity Golay-type terahertz array detector in optical readout [PDF]
AIP AdvancesWe present a micro-structured Golay-cell THz array detector with the sensitive mechanism from the THz optical radiation to thermal absorption, to pressure deformation, and then to optical phase, realizing highly sensitive, room temperature operation. The
Li Zhao +7 more
doaj +1 more source
Dual-UAV Collaborative High-Precision Passive Localization Method Based on Optoelectronic Platform
Drones, 2023 Utilizing the optical characteristics of the target for detection and localization does not require actively emitting signals and has the advantage of strong concealment.
Xu Kang +5 more
doaj +1 more source
Efficient Classical Simulation of Optical Quantum Circuits [PDF]
, 2002 We identify a broad class of physical processes in an optical quantum circuit that can be efficiently simulated on a classical computer: this class includes unitary transformations, amplification, noise, and measurements.
A. Peres +12 more
core +3 more sources
Optical power meter using radiation pressure measurement [PDF]
, 2018 This paper describes a radiation pressure meter based on a diamagnetic spring. We take advantage of the diamagnetic property of pyrolytic carbon to make an elementary levitated system.
Pinot, Patrick, Silvestri, Zaccaria
core +2 more sources
Remote Sensing, 2020 Intelligent detection and recognition of ships from high-resolution remote sensing images is an extraordinarily useful task in civil and military reconnaissance. It is difficult to detect ships with high precision because various disturbances are present
Yulian Zhang +5 more
doaj +1 more source
Track‐to‐track association algorithm for passive multisensor system based on trajectory parameter
IET Radar, Sonar & Navigation, 2021 Asynchronous sampling and the ghost point are significant issues in the track‐to‐track association (TTTA) for passive multisensor system. A TTTA algorithm is proposed based on a trajectory parameter to address these issues.
Mingyang Ma +3 more
doaj +1 more source
ASMADO‐based refined anti‐disturbance low‐speed control of PMSM
IET Power Electronics, 2023 Permanent magnet synchronous motors (PMSMs) have expectant low‐speed servo performance. However, complex nonlinear disturbances restrict the performance and lead to speed fluctuations, especially for small inertia PMSMs where the current‐loop cannot be ...
Huifan Wang +3 more
doaj +1 more source
Analysis for practical realization of number-state manipulation by number-sum Bell measurement with linear optics [PDF]
, 2004 We analyze the linear optical realization of number-sum Bell measurement and number-state manipulation by taking into account the realistic experimental situation, specifically imperfectness of single-photon detector.
Kitagawa, Akira, Yamamoto, Katsuji
core +2 more sources
Measurement-efficient optical wavemeters
Optics Express, 2004 We describe a method for efficiently determining the wavelength of a monochromatic source and provide an experimental proof-of-concept. The photomeasurement efficiency for a wavemeter can be written as eta(N,q) = (1 + logqN)/m, where N is the number of spectral channels, q is the number of distinguishable output levels per photodetector, and m is the ...
P, Potuluri +3 more
openaire +2 more sources
Ultrasensitive Atomic Spin Measurements with a Nonlinear Interferometer
, 2014 We study nonlinear interferometry applied to a measurement of atomic spin and demonstrate a sensitivity that cannot be achieved by any linear-optical measurement with the same experimental resources.
Boixo +7 more
core +2 more sources