Results 51 to 60 of about 11,945,723 (183)

Multi-baseline Pol-InSAR Forest Height Estimation in the presence of temporal decorrelation [PDF]

, 2010
Polarimetric Synthetic Aperture Radar (SAR) Interferometry (Pol-InSAR) is a radar remote sensing technique, based on the coherent combination of radar polarimetry (Pol-SAR) and SAR interferometry (InSAR) which is substantially more sensitive to ...
Papathanassiou, Kostas, Lee, Seung-Kuk, Hajnsek, Irena, Kugler, Florian, Martone, Michele   +4 more
core   +1 more source

Supermassive Black Hole Spin Constraints from Polarimetry in an Equatorial Disk Model

The Astrophysical Journal Letters
The Event Horizon Telescope has released polarized images of the supermassive black holes Messier 87* (M87*) and Sagittarius A* accretion disks. As more images are produced, our understanding of the average polarized emission from near the event horizon ...
Daniel C. M. Palumbo
doaj   +1 more source

Fabrication‐Tolerant GaAs/SiN Coupling Above the Loss Threshold for Quantum Photonic Applications

Laser &Photonics Reviews, EarlyView.
Reliable low‐loss optical coupling between GaAs and SiN waveguides for heterogeneous integration of single‐photon sources is demonstrated. By developing a fabrication‐aware numerical design approach and accounting for experimentally measured fabrication variations and scattering losses, coupling efficiencies meeting the < 10% loss requirement for ...
Miloš Ljubotina, Jasper De Witte, Zhe Liu, Andraž Debevc, Leonardo Midolo, Gunther Roelkens, Bart Kuyken, Dries Van Thourhout, Marko Topič, Janez Krč   +9 more
wiley   +1 more source

Terrestrial Very-Long-Baseline Atom Interferometry: Workshop Summary

, 2023
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world to discuss the exciting developments in large-scale atom interferometer ...
Smerzi, Augusto, Allard, Baptiste, Arnold, Aidan, Ströhle, Jannik, Schwersenz, Nico, Dunningham, Jacob, von Klitzing, Wolf, Ni, Wei-Tou, Bouyer, Philippe, Kopp, Joachim, Janson, Gregor, Prevedelli, Marco, Gersemann, Matthias, Zupan, Jure, Dobrich, Babette, Pandey, Saurabh, De Roeck, Albert, Quentin, Beaufils, Banks, Hannah, Sopuerta, Carlos F., Holynski, Michael, Vogt, Christian, Kasevich, Mark, Brimis, Apostolos, Menu, Jonathan, Sabulsky, Dylan, Windapssinger, Patrcik, Zhou, Lin, Mazumdar, Anupam, Pikovski, Igor, Rudolph, Jan, Tornatore, Vincenza, Badurina, Leonardo, Giudice, Gian Francesco, Omar, Yasser, Leykauf, Bastian, Haehnelt, Martin G., Odžak, Senad, Paling, Sean, Bertoldi, Andrea, Micalizio, Salvatore, Webber-Date, Alexander, Roura, Albert, Deppner, Christian, Morley, Gavin, Dornan, Peter, Lellouch, Samuel, Schreck, Florian, Carlesso, Matteo, Belic, Aleksandar, Walser, Reinhold, Hird, Thomas, Arduini, Gianluigi, Vaskonen, Ville, Friedrich, Alexander, Xuereb, André, Rasel, Ernst Maria, Jelezko, Fedor, Lewicki, Marek, Henderson, Victoria, Derr, Daniel, Harte, Tiffany, Struckmann, Christian, Gao, Dongfeng, Pelucchi, Emanuele, Lezeik, Ali, Millington, Peter, Fassi, Farida, Landsberg, Greg, Wang, Jin, Schilling, Manuel, Eby, Joshua, Mohammed, Mohammed Mahmoud, Schleich, Wolfgang, Kagan, Michael, Montero, Mario, Santamaria, Luigi, Barone, Michele, Pappas, George, Aßmann, Tobias, Bernabeu, Jose, Ellis, John, de Rham, Claudia, Zarei, Moslem, Sergijenko, Olga, Aceves, Veronica Vazquez, Vukics, András, Di Pumpo, Fabio, Blas, Diego, Trombettoni, Andrea, Cruzeiro, Emmanuel Zambrini, Marteau, Jacques, Wörner, Lisa, Felea, Daniel, Feng, Jie, Garraway, Barry, Balaz, Antun, Markus, Krutzik, Tolley, Andrew, Biswas, Ikbal Ahamed, Ekelof, Tord, Caramete, Ana, Wolf, Peter, Rajendran, Surjeet, Doser, Michael, Richaud, Andrea, Hammerer, Klemens, Cimbri, Alessia, Hakulinen, Timo, Spallicci, Alessandro, Rosendo, Esther del Pino, Hussain, Kamran, Quenby, John, Gardner, Susan, Wenzlawski, André, Fattori, Marco, Vitanov, Nikolay, Valuch, Daniel, Maleknejad, Azadeh, Derevianko, Andrei, Leone, Bruno, Cui, Yanou, Pareek, Vinay, Lombriser, Lucas, Asamar, Elias López, Messineo, Giuseppe, Holst, Bodil, Contaldi, Carlo, Bassi, Angelo, Boegel, Patrick, Kovachy, Tim, Araujo, Henrique, Mitchell, Jeremiah, Rodzinka, Tangui, Caramete, Laurentiu, Fayet, Pierre, Antoniadis, John, Battelier, Baptiste, Stergioulas, Nikolaos, Domokos, Peter, Charmandaris, Vassilis, Milosevic, Milan, Canuel, Benjamin, Shao, Lijing, Treutlein, Philipp, Böhringer, Samuel, Gibson, Valerie, Pilaftsis, Apostolos, Kilian, Eva, Bogojevic, Aleksandar, Shipsey, Ian, Easo, Sajan, Hawkins, Leonie, Pasatembou, Elizabeth, Tsai, Yu-Dai, Torres-Orjuela, Alejandro, Fuchs, Elina, Böhm, Jonas, Djordjevic, Goran, Bongs, Kai, Krutzik, Markus, Massonnet, Didier, Kumar, Pradeep, Poggiani, Rosa, Rafelski, Johann, Puputti, Julia, Williams, Jason, Glasbrenner, Eric, Casariego, Mateo, Efremov, Maxim, López, Luis, Hogan, Jason, Ulmer, Stefan, Monjaraz, Cristian López, Beniwal, Ankit, Alonso, Iván, Throssell, Henry, Lanigan, Bryony, Kumar, Mukesh, Gerlach, Sandra, Luciano, Gaetano, Kornakov, Georgy, Warburton, Niels, Hanımeli, Ekim Taylan, Schneider, Ulrich, Jeglič, Peter, Fanì, Mattia, Mircea, Ovidiu Tintareanu, Elertas, Gedminas, Pahl, Julia, Yahia, Mohamed, Chen, Yu-Ao, Müller, Jürgen, Da Ros, Elisa, Safronova, Marianna, Laemmerzahl, Claus, Schkolnik, Vladimir, Noller, Johannes, Tinsley, Jonathan, Davies, Gavin, Carlton, John, Zupanič, Erik, Evans, David, Abend, Sven, Veettil, Vishnupriya Puthiya, Buchmueller, Oliver, Constantin, Florin Lucian, Sfar, Haifa Rejeb, Santos, Franck Pereira dos, Stefanescu, Petruta, Cacciapuoti, Luigi, Schlippert, Dennis, Drougakis, Giannis, McCabe, Christopher, Zhan, Mingsheng, Chiofalo, Maria Luisa, Lafitte, Christophe Le Poncin, Caprini, Chiara, Schubert, Christian, Heise, Jaret, Kehagias, Alex, Tkalčec, Kimberly, Giese, Enno, Baynham, Charles, Brand, Christian, Piest, Baptist, Ufrecht, Christian, Werner, Michael, Tentindo, Silvia, Semakin, Aleksei, Bertinelli, Francesco, Duspayev, Alisher, Gauguet, Alexandre, Tino, Guglielmo M., Reynaud, Serge, Augst, Nadja, Calatroni, Sergio, Kalliokoski, Matti, Meister, Matthias, Plunkett, Robert, Konrad, Bernd, Oi, Daniel, Gaaloul, Naceur, Coleman, Jonathon, Koley, Soumen, Hees, Aurelien, Singh, Rajeev, Fadeev, Pavel, Herrmann, Sven, Gündogan, Mustafa, Müstecaplıoğlu, Özgür, Barsanti, Michele, Langlois, Mehdi   +252 more
core  

Modeling Targets and Optimal Frequencies for Imaging the Shadows of Nearby Supermassive Black Holes

The Astrophysical Journal
Horizon-scale imaging of supermassive black holes has opened a new avenue for studying strong-field gravity and plasma physics in low-luminosity accretion flows.
J. Cole Faggert, Feryal Özel, Dimitrios Psaltis   +2 more
doaj   +1 more source

Transcending the Space‐Bandwidth and Lighting Trade‐Offs: A Programmable Self‐Mixing Interferometry Imager for Cross‐Scale Surface Inspection

Laser &Photonics Reviews, EarlyView.
This work reports a laser diode‐based self‐mixing interferometry imager featuring illumination‐invariance imaging, a 500 kHz pixel rate, and an 8.77 µm lateral resolution. It also features a programmable field‐of‐view and leading space‐bandwidth product that surpasses existing technologies by an order of magnitude, enabling cross‐scale workflow ...
Zhou Su, Feng Lin, Mubasher Ali, Yuanfu Tan, Wei‐Hsin Liao, Hay Wong   +5 more
wiley   +1 more source

Metrics of Astrometric Variability in the International Celestial Reference Frame. I. Statistical Analysis and Selection of the Most Variable Sources

The Astrophysical Journal Supplement Series
Using very long baseline interferometry data for the sources that comprise the third International Celestial Reference Frame (ICRF3), we examine the quality of the formal source-position uncertainties of ICRF3 by determining the excess astrometric ...
Phil Cigan, Valeri V. Makarov, Nathan J. Secrest, David Gordon, Megan C. Johnson, Sebastien Lambert   +5 more
doaj   +1 more source

Monitoring shallow geothermal aquifers with active‐source distributed acoustic sensing: A prognostic feasibility study on the University of Leeds Geothermal Campus

Near Surface Geophysics, EarlyView.
Abstract The United Kingdom's shallow aquifers offer significant but underdeveloped geothermal energy resource. Seismic methods can help address this by improving the understanding of aquifer heterogeneity and potentially allowing long‐term monitoring of thermal plumes.
Adam D. Booth, Roger A. Clark, Andy Nowacki, Ravi Myanger, Joseph Kelly, Sjoerd de Ridder, Arka Dyuti Sarkar, Fleur Loveridge, Richard Collier, Emma Bramham, David Healy   +10 more
wiley   +1 more source

The Radio Fundamental Catalog. I. Astrometry

The Astrophysical Journal Supplement Series
We present an all-sky catalog of absolute positions and estimates of correlated flux density of 21,942 compact radio sources determined from processing interferometric visibility data of virtually all very long baseline interferometry (VLBI) observing ...
L. Y. Petrov, Y. Y. Kovalev
doaj   +1 more source

Position determination of the Chang’e 3 lander with geodetic VLBI

Earth, Planets and Space, 2019
We present results from the analysis of observations of the Chang’e 3 lander using geodetic Very Long Baseline Interferometry. The applied processing strategy as well as the limiting factors to our approach is discussed.
Grzegorz Klopotek, Thomas Hobiger, Rüdiger Haas, Frédéric Jaron, Laura La Porta, Axel Nothnagel, Zhongkai Zhang, Songtao Han, Alexander Neidhardt, Christian Plötz   +9 more
doaj   +1 more source