Results 21 to 30 of about 135,509 (144)
On the reconstruction of diagonal elements of density matrix of quantum optical states by on/off detectors [PDF]
, 2006 We discuss a scheme for reconstructing experimentally the diagonal elements of the density matrix of quantum optical states. Applications to PDC heralded photons, multi-thermal and attenuated coherent states are illustrated and discussed in some details ...
BRIDA, GIORGIO +6 more
core +2 more sources
Simulation of a vacuum phototriode with SIMION 3D [PDF]
, 2006 An electron-optic model of a 26 mm diameter vacuum phototriode (VPT) photodetector was developed using SIMION 3D software extended by additional code to simulate secondary emission at the dynode.
Abreu +5 more
core +1 more source
Fiber optic sensing system [PDF]
, 1991 A fiber optic interferometer utilizes a low coherence light emitting diode (LED) laser as a light source which is filtered and driven at two RF frequencies, high and low, that are specific to the initial length of the resonator chamber. A displacement of
Adamovsky, Grigory
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Optical distance measuring instrument [PDF]
, 1986 An optical instrument, such as a stability monitor or a target range finder, uses an unstabilized laser to project a composite optical signal of coherent light having two naturally occurring longitudinal mode components. A beamsplitter divides the signal
Abshire, J. B.
core +1 more source
Single-shot measurement of quantum optical phase
, 2005 Although the canonical phase of light, which is defined as the complement of photon number, has been described theoretically by a variety of distinct approaches, there have been no methods proposed for its measurement.
C. W. Helstrom +7 more
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Excess noise for coherent radiation propagating through amplifying random media [PDF]
, 1999 A general theory is presented for the photodetection statistics of coherent radiation that has been amplified by a disordered medium. The beating of the coherent radiation with the spontaneous emission increases the noise above the shot-noise level.
Beenakker, C. W. J., Patra, M.
core +4 more sources
QWIPs, SLS, Landsat and the International Space Station
OPTO, 2020 In 1988 DARPA provided funding to NASA’s Goddard Space Flight Center to support the development of GaAs Quantum Well Infrared Photodetectors (QWIP). The goal was to make a single element photodetector that might be expandable to a two-dimensional array ...
M. Jhabvala +4 more
semanticscholar +1 more source
The current status of orbital experiments for UHECR studies
, 2014 Two types of orbital detectors of extreme energy cosmic rays are being developed nowadays: (i) TUS and KLYPVE with reflecting optical systems (mirrors) and (ii) JEM-EUSO with high-transmittance Fresnel lenses.
Casolino, M. +14 more
core +3 more sources
Quantum tomography of the GHZ state [PDF]
, 1999 We present a method of generation of the Greenberger-Horne-Zeilinger state involving type II and type I parametric downconversion, and triggering photodetectors.
F.DE MARTINI +4 more
core +8 more sources
Optical Phase Locking techniques: an overview and a novel method based on Single Side Sub-Carrier modulation [PDF]
, 2008 A short overview on Optical Phase locking techniques and a detailed description of the Phase Locking technique based on Sub-Carriers modulation is presented.
Camatel, S., Ferrero, Valter
core +2 more sources