Results 31 to 40 of about 48,747 (277)

Precisely determining photon-number in real time [PDF]

open access: yesQuantum
Superconducting transition-edge sensors (TES) are extremely sensitive microcalorimeters used as photon detectors with unparalleled energy resolution.
Leonardo Assis Morais   +9 more
doaj   +1 more source

Performance of the Imaging Fourier Transform Spectrometer with Photoconductive Detector Arrays: An Application for the AKARI Far-Infrared Instrument

open access: yes, 2008
We have developed an imaging Fourier transform spectrometer (FTS) for space-based far-infrared astronomical observations. The FTS employs a newly developed photoconductive detector arrays with a capacitive trans-impedance amplifier, which makes the FTS a
DOI, Yasuo   +25 more
core   +1 more source

Optimization of MKID Noise Performance Via Readout Technique for Astronomical Applications [PDF]

open access: yes, 2010
Detectors employing superconducting microwave kinetic inductance detectors (MKIDs) can be read out by measuring changes in either the resonator frequency or dissipation. We will discuss the pros and cons of both methods, in particular, the readout method
Anastasios Vayonakisa   +22 more
core   +3 more sources

Characterization of mid-infrared intersubband detectors for astronomical heterodyne interferometry

open access: yesOptical and Infrared Interferometry and Imaging VIII, 2022
One of the major challenges of mid-infrared astronomical heterodyne interferometry is its sensitivity limitations. Detectors capable of handling several 10 GHz bandwidths have been identified as key building blocks of future instruments. Intersubband detectors based on heterostructures have recently demonstrated their ability to provide such ...
Allain, Tituan   +3 more
openaire   +3 more sources

Scalable background-limited polarization-sensitive detectors for mm-wave applications

open access: yes, 2014
We report on the status and development of polarization-sensitive detectors for millimeter-wave applications. The detectors are fabricated on single-crystal silicon, which functions as a low-loss dielectric substrate for the microwave circuitry as well ...
Ali, Aamir   +14 more
core   +1 more source

Special Section Guest Editorial: Detectors for Astronomy and Cosmology [PDF]

open access: yes, 2020
This guest editorial summarizes the Special Section on Detectors for Astronomy and ...
Hamden, Erika   +6 more
core  

Infrared Astronomical Satellite (IRAS) Scientific Data Analysis System [PDF]

open access: yes, 1980
The Jet Propulsion Laboratory's Scientific Data Analysis System will process Infrared Astronomical Satellite data and produce a catalog of perhaps a million infrared sources in the sky, as well as other vital information for astronomical ...
Duxbury, John H., Soifer, B. T.
core   +1 more source

Comment on “Does the Equivalence between Gravitational Mass and Energy Survive for a Composite Quantum Body?”

open access: yesAdvances in High Energy Physics, 2016
Lebed has given an argument that when a hydrogen atom is transported slowly to a different gravitational potential, it has a certain probability of emitting a photon. He proposes a space-based experiment to detect this effect.
B. Crowell
doaj   +1 more source

Intensity interferometry with more than two detectors? [PDF]

open access: yes, 2013
The original intensity interferometers were instruments built in the 1950s and 60s by Hanbury Brown and collaborators, achieving milli-arcsec resolutions in visible light without optical-quality mirrors.
Malvimat, Vinay   +2 more
core   +1 more source

Detectors for the astronomical applications

open access: yes2009 International Conference on Emerging Trends in Electronic and Photonic Devices & Systems, 2009
Astronomical observations are dependent on focal-plane instruments, and detectors continue to play a key role. The detector technology is evolving rather fast with the large-format CMOS and CCD array mosaics, electron-multiplying CCDs, electron-avalanche photodiode arrays, quantum-well IR photon detectors etc. However, the requirements of artifact-free
openaire   +2 more sources

Home - About - Disclaimer - Privacy