Results 31 to 40 of about 303,375 (325)

Intra- and interobserver reliability of ocular surface analyzer LacryDiag® [PDF]

International Journal of Ophthalmology
AIM: To invastigate intra- and interobserver reliability of interferometry, tear meniscus height (TMH) measurement and meibography (MBG) of an ocular surface analyzer, LacryDiag (Quantel Medical, France).
Eva Kos, Valentina Cigić, Mladen Bušić, Mirjana Bjeloš, Daliborka Miletić, Biljana Kuzmanović Elabjer   +5 more
doaj   +1 more source

Narrow linewidth single laser source system for onboard atom interferometry [PDF]

, 2014
A compact and robust laser system for atom interferometry based on a frequency-doubled telecom laser is presented. Thanks to an original stabilization architecture on a saturated absorption setup, we obtain a frequency-agile laser system allowing fast ...
Bidel, Yannick, Bresson, Alexandre, Cadoret, Malo, Carraz, Olivier, Renon, Geoffrey, Theron, Fabien, Zahzam, Nassim   +6 more
core   +2 more sources

Twin-lattice atom interferometry [PDF]

Nature Communications, 2019
Inertial sensors based on cold atoms have great potential for navigation, geodesy, or fundamental physics. Similar to the Sagnac effect, their sensitivity increases with the space-time area enclosed by the interferometer.
M. Gebbe, Jan-Niclas Siemß, M. Gersemann, H. Müntinga, S. Herrmann, C. Lämmerzahl, H. Ahlers, N. Gaaloul, C. Schubert, K. Hammerer, S. Abend, E. Rasel   +11 more
semanticscholar   +1 more source

Ten Years of Speckle Interferometry at SOAR [PDF]

, 2018
Since 2007, close binary and multiple stars are observed by speckle interferometry at the 4.1 m Southern Astrophysical Research (SOAR) telescope. The HRCam instrument, observing strategy and planning, data processing and calibration methods, developed ...
A. Tokovinin
semanticscholar   +1 more source

CREATING THE RT-32 RADIO TELESCOPE ON THE BASIC OF MARK-4B ANTENNA SYSTEM. 1. MODERNIZATION PROJECT AND FIRST RESULTS

Radio Physics and Radio Astronomy, 2019
Purpose: Creating a radio telescope based on the MARK-4B antenna system being developed for telecommunication applications, determining the possibilities of using the broadband multirange operation of a beam wave-guided antenna system and to evaluate ...
O. M. Ulyanov, O. M. Reznichenko, V. V. Zakharenko, A. V. Antyufeyev, A. M. Korolev, O. M. Patoka, V. I. Prisiazhnii, A. V. Poichalo, V. V. Voityuk, V. N. Mamarev, V. V. Ozhinskii, V. P. Vlasenko, V. M. Chmil, V. I. Lebed, M. I. Palamar, A. V. Chaikovskii, Yu. V. Pasternak, M. A. Strembitskii, M. P. Natarov, S. O. Steshenko, V. V. Glamazdyn, A. S. Shubny, A. A. Kirilenko, D. Y. Kulik, A. A. Konovalenko, L. M. Lytvynenko, Ya. S. Yatskiv   +26 more
doaj   +1 more source

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

Nature 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, R. van Bijnen, P. Schauss, S. Hild, Jae-yoon Choi, T. Pohl, I. Bloch, C. Gross   +7 more
semanticscholar   +1 more source

An Empirical Assessment of Temporal Decorrelation Using the Uninhabited Aerial Vehicle Synthetic Aperture Radar over Forested Landscapes

Remote Sensing, 2012
We present an empirical assessment of the impact of temporal decorrelation on interferometric coherence measured over a forested landscape. A series of repeat-pass interferometric radar images with a zero spatial baseline were collected with UAVSAR ...
Michelle Hofton, Naiara Pinto, Marco Lavalle, Ralph Dubayah, Scott Hensley, Marc Simard   +5 more
doaj   +1 more source

Vibration Measurements by Self-Mixing Interferometry: An Overview of Configurations and Benchmark Performances

Vibration, 2023
Self-mixing interferometry (SMI) is suitable to sense and measure vibrations of amplitudes ranging from picometers to millimeters at frequencies from sub-Hz to MHz’s.
Silvano Donati
doaj   +1 more source

Chirped-pulse interferometry with finite frequency correlations

, 2009
Chirped-pulse interferometry is a new interferometric technique encapsulating the advantages of the quantum Hong-Ou-Mandel interferometer without the drawbacks of using entangled photons.
Biggerstaff, Devon N., Kaltenbaek, Rainer, Lavoie, Jonathan, Resch, Kevin J.   +3 more
core   +1 more source

Ultrastable laser interferometry for earthquake detection with terrestrial and submarine cables

Science, 2018
Submarine fiber optic earthquake detection Seismic networks detect earthquakes and are common on continents, where they are easy to install. However, most of Earth's surface is under the oceans, where placing seismometers is difficult. Marra et al.
G. Marra, C. Clivati, R. Luckett, A. Tampellini, J. Kronjäger, L. Wright, A. Mura, F. Levi, Stephen Robinson, A. Xuereb, B. Baptie, D. Calonico   +11 more
semanticscholar   +1 more source