Results 11 to 20 of about 2,231,619 (353)

Mid Infrared Polarisation of Ultraluminous Infrared Galaxies [PDF]

Astronomy & Astrophysics, 2001
The mid infrared polarisation properties of four Ultraluminous Infrared Galaxies (ULIRGs) have been investigated by broad band filter observations with the ISOCAM instrument on board the Infrared Space Observatory (ISO).
A. Efstathiou, Antonucci, Antonucci, Barger, Carilli, Cesarsky, Clavel, Downes, Efstathiou, Efstathiou, Efstathiou, Genzel, Goldader, Gonatas, Granato, Greaves, Haas, Hall, Heisler, Hildebrand, Hiltner, Hughes, Jones, Kawara, Kessler, Koningl, Krolik, Krügel, Leach, Minchin, Novak, Ott, Pier, Puget, R. Siebenmorgen, Rigopoulou, Sanders, Sargent, Siebenmorgen, Siebenmorgen, Skinner, Smith, Smith, Soifer, Sopp, Veilleux, Ward-Thompson   +46 more
core   +5 more sources

Infrared Spectroscopy—Mid-infrared, Near-infrared, and Far-infrared/Terahertz Spectroscopy

Analytical Sciences, 2021
This article aims to overview infrared (IR) spectroscopy. Simultaneously, it outlines mid-infrared (MIR), near-infrared (NIR), and far-infrared (FIR) or terahertz (THz) spectroscopy separately, and compares them in terms of principles, characteristics, advantages, and applications.
Yukihiro Ozaki, Yukihiro Ozaki
openaire   +4 more sources

The scales of the infrared [PDF]

Journal of High Energy Physics, 2018
Abstract In theories with long-range forces like QED or perturbative gravity, loop corrections lead to vanishing amplitudes. There are two well-known procedures to address these infrared divergences: dressing of asymptotic states and inclusion of soft emission.
Raoul Letschka, Cesar Gomez, Cesar Gomez, Sebastian Zell, Sebastian Zell   +4 more
openaire   +5 more sources

Memory and the infrared [PDF]

Journal of High Energy Physics, 2017
Memory effects in scattering processes are described in terms of the asymptotic retarded fields. These fields are completely determined by the scattering data and the zero mode part is set by the soft photon theorem. The dressed asymptotic states defining an infrared finite S- matrix for charged particles can be defined as quantum coherent states using
Raoul Letschka, Cesar Gomez, Cesar Gomez
openaire   +5 more sources

Dust in the inner regions of debris disks around A stars [PDF]

, 2008
We present infrared interferometric observations of the inner regions of two A-star debris disks, beta Leo and zeta Lep, using the FLUOR instrument at the CHARA interferometer on both short (30 m) and long (>200 m) baselines.
A. Merand, Aufdenberg, Backman, Bauer, Beichman, Beichman, Bryden, C. A. Beichman, Chen, Chen, Chiang, Ciardi, Claret, D. R. Ciardi, Dominik, E. Di Folco, Glasse, H. McAlister, Hanbury Brown, J. Aufdenberg, J. D. Monnier, J. Sturmann, Jayawardhana, Kennedy, Kenyon, Koerner, Krivov, L. Sturmann, Lachaume, Lamy, Meyer, Meyer, Moerchen, Mérand, N. Turner, Natta, O. Absil, Perryman, R. L. Akeson, R. Millan-Gabet, Rieke, Su, Sylvester, T. ten Brummelaar, ten Brummelaar, van Leeuwen, Wolf, Wyatt   +47 more
core   +3 more sources

High efficiency and fast van der Waals hetero-photodiodes with a unilateral depletion region

Nature Communications, 2019
Photovoltaic devices based on 2D materials still suffer from low quantum efficiencies due to interfacial charge recombination and inefficient contacts.
Feng Wu, Qing Li, Peng Wang, Hui Xia, Zhen Wang, Yang Wang, Man Luo, Long Chen, Fansheng Chen, Jinshui Miao, Xiaoshuang Chen, Wei Lu, Chongxin Shan, Anlian Pan, Xing Wu, Wencai Ren, Deep Jariwala, Weida Hu   +17 more
doaj   +1 more source

ISO continuum observations of quasars at z=1-4 I.Spectral energy distributions of quasars from the UV to far-infrared [PDF]

, 2000
Eight luminous quasars with $ -30 < M_B < -27$ at z = 1.4 - 3.7 have been observed in the mid- and far-infrared using ISO. All the quasars have been detected in the mid-infrared bands of ISOCAM, while no far-infrared detections have been made with ...
Andreani, Andreani, Bechtold, Benford, Bertin, Bloom, C. Gabriel, Carilli, Carilli, Casali, Cesarsky, Chini, Chini, Dunlop, E. Nishihara, Elvis, Green, Guilloteau, Guilloteau, H. Okuda, H. Shibai, Haas, Hamann, Herbstmeier, Hughes, Impey, Irwin, Isaak, Ivison, K. Kawara, Kawara, Kawara, Kessler, Kneib, Kobayashi, Kormann, Landolt, Lemke, Lichti, Magain, Matsuhara, McMahon, Neugebauer, Neugebauer, Ohta, Omont, Omont, Osmer, Pier, Puget, Richards, Rowan-Robinson, S. Oyabu, Sanders, Schneider, Starck, T. Hasegawa, Taniguchi, Y. Sato, Y. Sofue, Y. Taniguchi, Y. Tsuzuki, Yoshii   +62 more
core   +2 more sources

Near-Infrared and Mid-Infrared Spectroscopy with the Infrared Camera (IRC) for AKARI [PDF]

Publications of the Astronomical Society of Japan, 2007
Abstract The Infrared Camera (IRC) is one of the two instruments on board the AKARI satellite, In addition to deep imaging from 1.8 to 26.5 $\mu$m for the pointed observation mode of the AKARI, it has a spectroscopic capability in its spectral range.
Hidenori Watarai, Yuji Ikeda, Norihide Takeyama, Woojung Kim, Hideo Matsuhara, Hirokazu Kataza, Shinki Oyabu, Toshio Matsumoto, Itsuki Sakon, Yoshifusa Ita, Takehiko Wada, Toshinobu Takagi, Chris P. Pearson, Chris P. Pearson, Martin Cohen, Tomoyasu Yamamuro, Naofumi Fujishiro, Takashi Onaka, Toshihiko Tanabe, Daisuke Ishihara, Munetaka Ueno, Miho N. Ishigaki, Miho N. Ishigaki, Hiroshi Murakami, Youichi Ohyama, Kazunori Uemizu, F. Usui   +26 more
openaire   +3 more sources

High-Discrimination Circular Polarization Detection Based on Dielectric-Metal-Hybrid Chiral Metamirror Integrated Quantum Well Infrared Photodetectors

Sensors, 2022
Circular polarization detection enables a wide range of applications. With the miniaturization of optoelectronic systems, integrated circular polarization detectors with native sensitivity to the spin state of light have become highly sought after.
Jinyong Shen, Tianyun Zhu, Jing Zhou, Zeshi Chu, Xiansong Ren, Jie Deng, Xu Dai, Fangzhe Li, Bo Wang, Xiaoshuang Chen, Wei Lu   +10 more
doaj   +1 more source

Infrared analysis of propagators and vertices of Yang--Mills theory in Landau and Coulomb gauge [PDF]

, 2006
The infrared behaviour of gluon and ghost propagators, ghost-gluon vertex and three-gluon vertex is investigated for both the covariant Landau and the non-covariant Coulomb gauge.
H. Reinhardt, M. Leder, N. H. Christ, W. Schleifenbaum   +3 more
core   +2 more sources