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تسجيل مستخدم جديدKinetic inductance detectors for millimeter and submillimeter astronomy / Detecteurs `a inductance cinetique pour lastronomie millimetrique et sub-millimetrique
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We present recent developments in Kinetic Inductance Detectors (KID) for large arrays of detectors. The main application is ground-based millimeter wave astronomy. We focus in particular, as a case study, on our own experiment: NIKA (Neel IRAM KID Arrays). NIKA is today the best in-the-field experiment using KID-based instruments, and consists of a dual-band imaging system designed for the IRAM 30 meter telescope at Pico Veleta. We describe in this article, after a general context introduction, the KID working principle and the readout electronics, crucial to take advantage of the intrinsic KID multiplexability. We conclude with a small subset of the astronomical sources observed simultaneously at 2 mm and 1.4 mm by NIKA during the last run, held in October 2010. Nous decrivons les recents developpements concernant les grandes matrices de detecteurs `a inductance cinetique (KID) dont lapplication principale est lastronomie millimetrique au sol. Nous detaillons en particulier notre propre camera : NIKA (Neel IRAM KID Arrays) qui est aujourdhui linstrument le plus abouti mettant en oeuvre des KIDs. NIKA est une camera bi-bande conc{c}ue pour le radiotelescope de 30 m`etres de lIRAM `a Pico Veleta. Apres avoir decrit le contexte instrumental dans lequel ils sinscrivent, nous expliquerons le principe de fonctionnement des KIDs et de leur electronique de lecture, cruciale pour pouvoir tirer parti de leur potentiel de muliplexage. Pour finir, nous presentons quelques exemples dobservations effectuees par NIKA dans les bandes de 2 mm et 1,4 mm au cours de la derni`ere campagne dobservation en octobre 2010.
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In Kinetic Inductance Detectors (KIDs) and other similar applications of superconducting microresonators, both the large and small-signal behaviour of the device may be affected by electrothermal feedback. Microwave power applied to read out the devi
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