A Room Temperature Bolometer for Terahertz Coherent and Incoherent Detection

被引：32
|
作者：
Cherednichenko, Sergey [1 ]
Hammar, Arvid [1 ]
Bevilacqua, Stella [1 ]
Drakinskiy, Vladimir [1 ]
Stake, Jan
Kalabukhov, Alexey [2 ,3 ]
机构：
[1] Chalmers Univ Technol, Terahertz & MillimetreWave Lab, Dept Microtechnol & Nanosci, SE-42196 Gothenburg, Sweden
[2] Chalmers Univ Technol, Quantum Device Phys Lab, Dept Microtechnol & Nanosci, SE-42196 Gothenburg, Sweden
[3] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia
来源：
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2011年 / 1卷 / 02期
基金：
瑞典研究理事会;
关键词：
Bolometer; mixer; room temperature detector; submillimeter; terahertz (THz); YBCO; MILLIMETER; MICROBOLOMETERS; NOISE;
D O I：
10.1109/TTHZ.2011.2164654
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a novel room temperature bolometer with nanosecond response that can be used both for coherent and incoherent detection through the entire terahertz frequency range. A responsivity of up to 15 V/W, and a noise equivalent power (NEP) similar to 450 pW/Hz(0.5) were measured at modulation frequencies from 0.5 kHz to 100 kHz. A conversion gain of -28 dB was demonstrated at an intermediate frequency of 20 MHz with a Local Oscillator power of 0.74 mW. Possible improvements of the bolometer characteristics are discussed.
引用
收藏
页码：395 / 402
页数：8
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