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Size effects in a hybrid plasmonic waveguide based power monitor with a bolometric method
Li, Yan1; Chen, Anqi1; Dai, Tingge4; Chen, Weiwei1; Liu, Hongjun2; Wang, Pengjun3
Department瞬态光学研究室
2021-09-02
Source PublicationJOURNAL OF PHYSICS D-APPLIED PHYSICS
ISSN0022-3727;1361-6463
Volume54Issue:35
Contribution Rank2
Abstract

A silicon based hybrid plasmonic waveguide (HPW) configuration has been widely utilized to monitor the power flowing in the plasmonic circuit. Due to the approximately linear relationship between resistance and temperature change (the temperature coefficient of resistance, TCR), the voltage-signal variation directly leads to the change of resistance and the corresponding change of coupled-in power. However, the size effect is rarely explored and demonstrated, which plays a substantial role while the metal-strip thickness approaches to its electron mean free path. It exhibits different electric properties, such as reduced TCR and thermal conductivity, resulting in deviations of resistivity. On the contrary, due to the increase of boundary scattering and narrow-strip absorption, an improvement of the responsivity and excepted sensitivity is found. Therefore, considering a trade-off associated with size effects, 50 nm silver-strip and gold-strip were utilized as the conductor layer in the HPW configuration with different geometries, respectively. Meanwhile, a 50 nm x 300 nm gold-strip HPW provides an improvement performance, up to 13.7 mV mW V-1, 0.05 mu W sensitivity at bias 0.1 V. Its responsivity is about 1.4 times larger than that of silver, which contradicts to the macroscopic model.

Keywordbolometers hybrid plasmonic waveguides size effects silicon photonics
DOI10.1088/1361-6463/ac0927
Indexed BySCI ; EI
Language英语
WOS IDWOS:000664292800001
PublisherIOP PUBLISHING LTD
EI Accession Number20212810608622
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/94934
Collection瞬态光学研究室
Corresponding AuthorChen, Anqi; Wang, Pengjun
Affiliation1.Ningbo Univ, Dept Elect Engn & Comp Sci, Ningbo, Peoples R China
2.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian, Peoples R China
3.Wenzhou Univ, Dept Math Phys & Elect Informat Engn, Wenzhou, Peoples R China
4.Zhejiang Univ, Ningbo Inst Technol, Dept Informat Sci & Engn, Ningbo, Peoples R China
Recommended Citation
GB/T 7714
Li, Yan,Chen, Anqi,Dai, Tingge,et al. Size effects in a hybrid plasmonic waveguide based power monitor with a bolometric method[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2021,54(35).
APA Li, Yan,Chen, Anqi,Dai, Tingge,Chen, Weiwei,Liu, Hongjun,&Wang, Pengjun.(2021).Size effects in a hybrid plasmonic waveguide based power monitor with a bolometric method.JOURNAL OF PHYSICS D-APPLIED PHYSICS,54(35).
MLA Li, Yan,et al."Size effects in a hybrid plasmonic waveguide based power monitor with a bolometric method".JOURNAL OF PHYSICS D-APPLIED PHYSICS 54.35(2021).
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