Results 41 to 50 of about 300,339 (391)

Sensitivity of a Bolometric Interferometer to the CMB power spectrum [PDF]

open access: yes, 2008
Context. The search for B-mode polarization fluctuations in the Cosmic Microwave Background is one of the main challenges of modern cosmology. The expected level of the B-mode signal is very low and therefore requires the development of highly sensitive ...
Bunn   +11 more
core   +3 more sources

First light for GRAVITY: Phase referencing optical interferometry for the Very Large Telescope Interferometer [PDF]

open access: yes, 2017
GRAVITY is a new instrument to coherently combine the light of the European Southern Observatory Very Large Telescope Interferometer to form a telescope with an equivalent 130 m diameter angular resolution and a collecting area of 200 m2.
G. C. R. Abuter   +131 more
semanticscholar   +1 more source

Bridge Monitoring by a Monostatic/Bistatic Interferometric Radar Able to Retrieve the Dynamic 3D Displacement Vector

open access: yesIEEE Access, 2020
A monostatic/bistatic radar for retrieving the three-dimensional (3D) displacement vector is proposed for static and dynamic monitoring of bridges. The radar is particularly suitable for dynamic test, as it is able to detect the three components at high ...
Lapo Miccinesi, Massimiliano Pieraccini
doaj   +1 more source

Review of Satellite Interferometry for Landslide Detection in Italy

open access: yesRemote Sensing, 2020
Landslides recurrently impact the Italian territory, producing huge economic losses and casualties. Because of this, there is a large demand for monitoring tools to support landslide management strategies.
L. Solari   +7 more
semanticscholar   +1 more source

First direct detection of an exoplanet by optical interferometry [PDF]

open access: yesAstronomy & Astrophysics, 2019
Aims. To date, infrared interferometry at best achieved contrast ratios of a few times 10−4 on bright targets. GRAVITY, with its dual-field mode, is now capable of high contrast observations, enabling the direct observation of exoplanets.
S. Lacour   +87 more
semanticscholar   +1 more source

Interferometry with Vortices [PDF]

open access: yesInternational Journal of Optics, 2012
Interference of optical beams with optical vortices is often encountered in singular optics. Since interferometry makes the phase observable by intensity measurement, it brings out a host of applications and helps to understand the optical vortex. In this article we present an optical vortex interferometer that can be used in optical testing and has ...
Shunichi Sato   +2 more
openaire   +3 more sources

Interferometry And Synthesis In Radio Astronomy

open access: yes, 2016
Thank you for reading interferometry and synthesis in radio astronomy. As you may know, people have look numerous times for their favorite novels like this interferometry and synthesis in radio astronomy, but end up in malicious downloads.

semanticscholar   +1 more source

Many-body interferometry of a Rydberg-dressed spin lattice [PDF]

open access: yesNature Physics, 2016
The control of long-range interactions is an essential ingredient for the study of exotic phases of matter using atoms in optical lattices. Such control is demonstrated using Rydberg dressing: the coupling of ground state atoms to Rydberg states ...
J. Zeiher   +7 more
semanticscholar   +1 more source

Observation of Pancharatnam-Berry phase for unpolarized and partially polarized light fields

open access: yesResults in Optics, 2021
Geometric phase, owing to its topological nature and properties of fault tolerance, plays an important role in devising real world applications in both classical and quantum domain.
Bhaskar Kanseri, Rohit Gupta
doaj  

Position Measurement over Wide Range by Simultaneous Use of Low and High Coherence Light Source [PDF]

open access: yesElectronics, 2015
In this paper we propose and experimentally demonstrate a new technique for position/displacement measurement using fiber optic interferometry. We simultaneously employ a low- and a high- coherence light source in the same opto-mechanical configuration ...
Miloš C. Tomić, Zoran V. Đinović
doaj   +1 more source

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