@Article{Gonzalez_etal2005, author="Gonzalez, F. J. and Ilic, B. and Alda, J. and Boreman, G. D.", title="Antenna-coupled infrared detectors for imaging applications", journal="IEEE J. Sel. Topics Quantum Electron.", year="2005", volume="11", number="1", pages="117--120", optkeywords="optical antennas", abstract="Infrared focal plane arrays (IRFPAs) are a critical component in advanced infrared imaging systems. IRFPAs are made up of two parts, a detector array and a readout integrated circuit (ROIC) multiplexer. Current ROIC technology has typical pitch sizes of 20{\texttimes}20 to 50{\texttimes}50 $\mu$m2. In order to make antenna-coupled detectors suited for infrared imaging systems, two-dimensional (2-D) arrays have been fabricated that cover a whole pixel area with the penalty of increasing the noise figure of the detector and, therefore, reducing its performance. By coupling a Fresnel zone plate lens to a single element antenna-coupled detector, infrared radiation can be collected over a typical pixel area and still keep low-noise levels. A Fresnel zone plate lens coupled to a single-element square-spiral-coupled infrared detector has been fabricated and its performance compared to single element antenna-coupled detectors and 2-D arrays of antenna coupled detectors. Measurements made at 10.6 $\mu$m showed a two-order-of-magnitude increase in SNR and a {\textasciitilde}{\texttimes} increase in D* as compared to 2-D arrays of antenna-coupled detectors.", optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=741), last updated on Sun, 22 May 2016 16:41:08 -0500" }