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A Graphene-Based Terahertz Hot Electron Bolometer with Johnson Noise Readout
Miao, W.1,2; Gao, H.1,2; Wang, Z.1,2; Zhang, W.1,2; Ren, Y.1,2; Zhou, K. M.1,2; Shi, S. C.1,2; Yu, C.3; He, Z. Z.3; Liu, Q. B.3; Feng, Z. H.3
2018-11-01
Source PublicationJOURNAL OF LOW TEMPERATURE PHYSICS
ISSN0022-2291
Volume193Issue:3-4Pages:387-392
Abstract

In this paper, we present the development of a graphene-based hot electron bolometer with Johnson noise readout. The bolometer is a graphene microbridge connected to a log spiral antenna by Au contact pads. The Fourier transform spectrometer measurement shows the bolometer has high coupling efficiency in the frequency range from 0.3 to 1.6THz. Using 300/77K blackbody loads, we measure an optical noise equivalent power of 5.6x10(-12)W/Hz(0.5) at 3.0K. To understand the thermal transport inside the graphene microbridge, we measure the bolometers with different microbridge lengths at different bath temperatures. We find that the thermal conductance due to electron diffusion is significant in the bolometers.

KeywordGraphene Terahertz Hot electron bolometer Johnson noise readout Equivalent noise power
DOI10.1007/s10909-018-1972-6
WOS KeywordPERFORMANCE ; MIXER
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied ; Physics, Condensed Matter
WOS IDWOS:000447975800041
PublisherSPRINGER/PLENUM PUBLISHERS
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/21020
Collection中国科学院紫金山天文台
Corresponding AuthorShi, S. C.
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
3.Hebei Semicond Res Inst, Shijiazhuang 050051, Hebei, Peoples R China
Recommended Citation
GB/T 7714
Miao, W.,Gao, H.,Wang, Z.,et al. A Graphene-Based Terahertz Hot Electron Bolometer with Johnson Noise Readout[J]. JOURNAL OF LOW TEMPERATURE PHYSICS,2018,193(3-4):387-392.
APA Miao, W..,Gao, H..,Wang, Z..,Zhang, W..,Ren, Y..,...&Feng, Z. H..(2018).A Graphene-Based Terahertz Hot Electron Bolometer with Johnson Noise Readout.JOURNAL OF LOW TEMPERATURE PHYSICS,193(3-4),387-392.
MLA Miao, W.,et al."A Graphene-Based Terahertz Hot Electron Bolometer with Johnson Noise Readout".JOURNAL OF LOW TEMPERATURE PHYSICS 193.3-4(2018):387-392.
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