Zobrazeno 1 - 10
of 98
pro vyhledávání: '"D. Billon"'
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
The NOEMA (Northern Extended Millimeter Array) Interferometer is a Radio-Astronomical Observatory composed of ten 15-m Antennas (two additional antennas are also being constructed) located on the Plateau de Bure, in the French South Alps. Each of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf9b9f9720405adacd693b55b21410d9
https://doi.org/10.1109/irmmw-thz.2019.8874506
https://doi.org/10.1109/irmmw-thz.2019.8874506
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 2:215-221
The Eight Mixer Receiver (EMIR) is a multi-band millimeter wave receiver installed since 2009 at the 30 m telescope of the Institut de Radio Astronomie Millimetrique (IRAM) at Pico Veleta in Spain. In autumn 2011, Band 3 and Band 4 will be equipped w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b123d4f88ac620d12ff4998c1783b3f
https://doi.org/10.1109/tthz.2011.2180609
https://doi.org/10.1109/tthz.2011.2180609
Publikováno v:
Scopus-Elsevier
We report on the design and characterization of two full height waveguide SIS mixers for astronomical applications: a Double Side Band (DSB) fixed-tuned mixer covering the 225-370 GHz band ( 50 % of relative bandwidth), and a tunable Single Side Band
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c80d7b51547cc1337799c90a34c1b5e
https://doi.org/10.1051/jp420020059
https://doi.org/10.1051/jp420020059
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 11:844-847
We present an ultra broadband low noise single sideband (SSB) SIS mixer developed for 200-300 GHz radio astronomy receivers. The mixer uses two Nb/AlO/sub x//Nb junctions. Image band rejection by 20 dB is provided in the entire 200-300 GHz band using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b487be29112aaa2a9af3a9ebff176687
https://doi.org/10.1109/77.919476
https://doi.org/10.1109/77.919476
Publikováno v:
IEEE Transactions on Applied Superconductivity. 17:191-193
We present a new fabrication scheme for high quality Nb-AlOx-Nb junctions as used for mm-wave mixers in radio astronomy. The key features of the fabrication process are high-resolution e-beam lithography for junction and contact definition as well as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93718fe5fb5ac6ede02afb05232e26a5
https://doi.org/10.1109/tasc.2007.898717
https://doi.org/10.1109/tasc.2007.898717
Publikováno v:
International Journal of Infrared and Millimeter Waves. 19:1175-1190
The integration of many receiver units into a receiver array is a common method of improvement of imaging systems. This approach, well known in the mm band for Schottky mixer arrays, has not so far been developed for Superconductor - Insulator - Supe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1989871b15cca9ef1d5d55ae6c7c4975
https://doi.org/10.1023/a:1022668625233
https://doi.org/10.1023/a:1022668625233
Autor:
D. Billon-Pierron, M. Rosengarten, T. Lehnert, H. Rothermel, Alexandre Karpov, K. H. Gundlach
Publikováno v:
Journal of Applied Physics. 75:4097-4102
Double‐barrier niobium tunnel junctions with the middle electrode thinner than the London penetration depth were fabricated. Their I‐V curves, annealing behavior, response to external magnetic field, and response to 230 and 350 GHz irradiation in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5eaca68d76b6e8338b0194c137dfee0
https://doi.org/10.1063/1.355988
https://doi.org/10.1063/1.355988
Publikováno v:
IEEE Transactions on Applied Superconductivity. 3:2617-2620
The authors report on the preparation and properties of Pb/Bi/In-oxide-Pb/Bi and Nb-Al oxide-Nb junctions prepared for a 345-GHz open-structure heterodyne receiver. The lowest receiver noise temperature with the Pb/Bi/In junctions is 215 K DSB. In th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::688b1bd8795bcc233ae52c2f4e777f9a
https://doi.org/10.1109/77.233520
https://doi.org/10.1109/77.233520
Publikováno v:
Journal of Applied Physics. 72:3165-3168
The increase of the normal‐state resistance of Nb‐Al/AlOx‐Nb tunnel junctions by annealing at elevated temperatures is reported. Junctions with an area of 4 μm2 or smaller have been investigated. The resistance could be increased up to a facto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8350629a42b8e59266c17af5024685f3
https://doi.org/10.1063/1.351479
https://doi.org/10.1063/1.351479
Autor:
D. Billon
Publikováno v:
IEEE Workshop Sensor Array and Multichannel Signal Processing, 2006..
While synthetic aperture sonar is now a mature technology for active imaging of the sea floor, its use for improving passive detection or localisation of underwater acoustic sources is still a research issue. In the first part, we show that the phase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::641b9387f3e7c427becbc354a61a59a7
https://doi.org/10.1109/sam.2006.1677214
https://doi.org/10.1109/sam.2006.1677214