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

页码：395 / 402

页数：8

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