Records |
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 |
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Conference Article |
Year |
2005 |
Publication |
Proc. 12th International Symposium on Remote Sensing |
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SIR |
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Bruges, Belgium |
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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 |
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Volume |
81 |
Issue |
10 |
Pages |
661-664 |
Keywords |
CEB, mixer |
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545 |
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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) |
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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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593 |
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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 |
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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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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. |
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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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RPLAB @ gujma @ |
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741 |
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