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Author Hoogeveen, R. W. M.; Yagoubov, P. A.; de Lange, A.; Selig, A. M.; Koshelets, V. P.; Ellison B. N.; Birk, M.
Title Superconducting integrated receiver development for TELIS Type Conference Article
Year 2005 Publication Proc. 12th International Symposium on Remote Sensing Abbreviated Journal (up)
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Address SIR
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Publisher Place of Publication Bruges, Belgium Editor
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Notes Approved no
Call Number Serial 523
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Author Тарасов, М.; Кузьмин, Л.
Title Концепция смесителя на основе болометра на холодных электронах Type Journal Article
Year 2005 Publication Письма в ЖЭТФ Abbreviated Journal (up)
Volume 81 Issue 10 Pages 661-664
Keywords CEB, mixer
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Notes Approved no
Call Number Serial 545
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Author Nagatsuma, T.; Hirata, A.; Sato, Y.; Yamaguchi, R.; Takahashi, H.; Kosugi, T.; Tokumitsu, M.; Sugahara, H.; Furuta, T.; Ito, H.
Title Sub-Terahertz Wireless Communications Technologies Type Conference Article
Year 2005 Publication Proc. 18th International Conference on Applied Electromagnetics and Communications (ICECom 2005) Abbreviated Journal (up)
Volume Issue Pages 1-4
Keywords subterahartz terahertz THz communications
Abstract This paper presents a 10-Gb/s wireless link system that uses a 120-GHz-band sub-terahertz electro-magnetic waves. In the transmitter, photonic techniques are used for generation, modulation, and emission of the sub-THz signals, while the receiver is composed of all-electronic devices using InP-HEMTs.
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Notes Approved no
Call Number Serial 593
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Author Huebers, Heinz-Wilhelm; Pavlov, S.; Semenov, A.; Köhler, R.; Mahler, L.; Tredicucci, A.; Beere, H.; Ritchie, D.; Linfield, E.
Title Terahertz quantum cascade laser as local oscillator in a heterodyne receiver Type Journal Article
Year 2005 Publication Optics Express Abbreviated Journal (up)
Volume 13 Issue 15 Pages 5890-5896
Keywords QCL heterodyne, 6 mW at 2.5 THz, HEB mixer, terahertz
Abstract Terahertz quantum cascade lasers have been investigated with respect to their performance as a local oscillator in a heterodyne receiver. The beam profile has been measured and transformed in to a close to Gaussian profile resulting in a good matching between the field patterns of the quantum cascade laser and the antenna of a superconducting hot electron bolometric mixer. Noise temperature measurements with the hot electron bolometer and a 2.5 THz quantum cascade laser yielded the same result as with a gas laser as local oscillator.
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Notes Approved no
Call Number Serial 627
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Author Gonzalez, F.J.; Ilic, B.; Alda, J.; Boreman, G.D.
Title Antenna-coupled infrared detectors for imaging applications Type Journal Article
Year 2005 Publication IEEE J. Sel. Topics Quantum Electron. Abbreviated Journal (up)
Volume 11 Issue 1 Pages 117 - 120
Keywords 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 20×20 to 50×50 μm2. 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 μm showed a two-order-of-magnitude increase in SNR and a ~× increase in D* as compared to 2-D arrays of antenna-coupled detectors.
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Notes Approved no
Call Number RPLAB @ gujma @ Serial 741
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