Results 71 to 80 of about 614,140 (290)

Fabrication of Superconducting Detectors for Studying the Universe [PDF]

, 2012
Superconducting detectors offer unparalleled means of making astronomical/cosmological observations. Fabrication of these detectors is somewhat unconventional; however, a lot of novel condensed matter physics/materials scientific discoveries and ...
Brown, Ari-David
core  

Localization of gravitational wave sources with networks of advanced detectors [PDF]

, 2011
Coincident observations with gravitational wave (GW) detectors and other astronomical instruments are in the focus of the experiments with the network of LIGO, Virgo and GEO detectors.
Mazzolo, G., G. Mazzolo, Mitselmakher, G., F. Salemi, Yakushin, I., V. Re, S. Klimenko, G. Mitselmakher, Re, V., Prodi, G., Salemi, F., G. Prodi, Drago, M., Klimenko, S., Vedovato, G., G. Vedovato, M. Drago, Pankow, C., I. Yakushin, C. Pankow   +19 more
core   +1 more source

BGRem: A background noise remover for astronomical images based on a diffusion model

Astronomy & Astrophysics
Context. Astronomical imaging aims to maximize signal capture while minimizing noise. It is difficult and expensive to enhance the signal-to-noise ratio directly on detectors, which has led to extensive research into advanced post-processing techniques ...
Nicolaas Rodney, Caron Sascha, Stoppa Fiorenzo, Bhattacharyya Saptashwa, de Austri Roberto R., Groot Paul J., Levan Andrew J.   +6 more
doaj   +1 more source

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

Advanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare, Craig S. Knox, Ahmet Yagmur, Sara Ghayeb Zamharir, Lianhe Li, Satoshi Sasaki, A. Giles Davies, Edmund H. Linfield, Joshua R. Freeman, Miriam S. Vitiello   +9 more
wiley   +1 more source

Radiation-induced Degradation and On-orbit Performance Assessment of an sCMOS Detector

The Astronomical Journal
Optical astronomical projects have traditionally relied on charge-coupled device (CCD) detectors. However, next-generation complementary metal-oxide-semiconductor (CMOS) technology, with advantages including high-speed readout, low dark current, and ...
Qi Feng, Ziyi Liu, Hongfei Zhang, Jian Wang, Jian Ge, Xinyu Yao, Hongjing Yang, Weicheng Zang, Zitao Zhao, Mingzhu Xun, Baolong Chen, Kangzhe Wang, Xinbo Wang   +12 more
doaj   +1 more source

Increasing Lipid Nanoparticle mRNA Copy Number Improves Transfection Potency

Advanced Materials, EarlyView.
As lipid nanoparticle (LNP) systems are the leading platform for in vivo nucleic acid delivery, improving transfection potency of these systems is of considerable interest. In this work, we explored a post‐mixing formulation method involving a two‐step buffer exchange that increased the number of mRNA copies within each LNP while reducing the number of
Yao Zhang, Jerry Leung, Judy Cheng, Arash Momeni, Albert Kamanzi, Ariadne Tuckmantel Bido, Suiyang Liao, Emma Kang, Colton Strong, Christian J. Kastrup, Sabrina Leslie, Miffy Hok Yan Cheng, Pieter R. Cullis   +12 more
wiley   +1 more source

Giant Anisotropic Spin Absorption in Chiral Hybrid Semiconductors

Advanced Materials, EarlyView.
Researchers uncover that chiral hybrid organic–inorganic semiconductors absorb spin differently depending on its polarization direction. This anisotropic spin absorption is primarily driven by the local symmetry breaking within the layered structure.
Cong Yang, Rui Sun, Mingwei Ge, Shehzad Khan, Subhrangsu Mukherjee, Matthew P. Hautzinger, Tianyou Lu, Harald Ade, Pius M. Theiler, Matthew C. Beard, Dali Sun, Mengxia Liu, Jun Liu   +12 more
wiley   +1 more source

The astronomical application of infrared array detectors [PDF]

, 1987
Major innovations in semiconductor technology have led to the recent availability to the astronomical community of arrays comprising several thousands of detectors, each simultaneously sensitive to near infrared radiation.
McCaughrean, Mark John
core  

Detecting fluorescent dark matter with X-ray lasers

European Physical Journal C: Particles and Fields, 2018
Fluorescent dark matter has been suggested as a possible explanation of both the 3.5 keV excess in the diffuse emission of the Perseus Cluster and of the deficit at the same energy in the central active galaxy within that cluster, NGC 1275.
Francesca Day, Malcolm Fairbairn
doaj   +1 more source

Robust Spin Splitting and Fermiology in the Layered Altermagnet CoNb4${\rm CoNb}_4$Se8${\rm Se}_8$

Advanced Materials, EarlyView.
The emergence of an altermagnetic phase is demonstrated in the cobalt‐intercalated superconducting 2H‐NbSe2 polymorph. A combined theoretical and experimental approach directly probes the magnetism, the altermagnetic lifting of Kramers degeneracy, and the electronic phase space, establishing CoNb4Se8 as the first g‐wave altermagnetic layered material ...
Alessandro De Vita, Chiara Bigi, Davide Romanin, Matthew D. Watson, Vincent Polewczyk, Marta Zonno, François Bertran, Pietro M. Forcella, My Bang Petersen, Federico Motti, Giovanni Vinai, Manuel Tuniz, Federico Cilento, Mario Cuoco, Brian M. Andersen, Andreas Kreisel, Luciano Jacopo D'Onofrio, Oliver J. Clark, Mark T. Edmonds, Christopher Candelora, Muxian Xu, Siyu Cheng, Alexander LaFleur, Tommaso Antonelli, Giorgio Sangiovanni, Lorenzo Del Re, Ivana Vobornik, Jun Fujii, Fabio Miletto Granozio, Alessia Sambri, Emiliano Di Gennaro, Jeppe B. Jacobsen, Henrik Jacobsen, Iulia Cojocariu, Marcin Szpytma, Andrea Locatelli, Tevfik Mentes, Won Seop Song, Jun Sung Kim, Matthieu Jamet, Jean‐François Jacquot, Pasquale Orgiani, Ralph Ernstorfer, Ilija Zeljkovic, Younghun Hwang, Matteo Calandra, Jill A. Miwa, Federico Mazzola   +47 more
wiley   +1 more source