Reflective grating-coupled structure improves the detection efficiency of THz array detectors
A reflective grating-coupled structure on the silicon substrate was designed to improve the detection efficiency of terahertz detectors for the frequency ranging from 0.26 THz to 0.36 THz. By using finite difference time domain (FDTD) solutions, the simulation and optimized design of the grating-cou...
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| Veröffentlicht in: | Scientific reports 2018-05, Vol.8 (1), p.8032-7, Article 8032 |
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| creator | Xiao, Peng Tu, Xuecou Kang, Lin Jiang, Chengtao Zhai, Shimin Jiang, Zhou Pan, Danfeng Chen, Jian Jia, Xiaoqing Wu, Peiheng |
| description | A reflective grating-coupled structure on the silicon substrate was designed to improve the detection efficiency of terahertz detectors for the frequency ranging from 0.26 THz to 0.36 THz. By using finite difference time domain (FDTD) solutions, the simulation and optimized design of the grating-coupled structure were carried out. The results showed that the signal was effectively reflected and diffracted by the reflective grating-coupled structure which significantly enhanced the electric field in the place of the detector. The maximum electric field can be increased by 2.8 times than that of the Fabry-Perot resonator. To verify the design results, the reflective grating-coupled structure was applied in the preparation of the Nb
5
N
6
array detector chip and compared with the Nb
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N
6
array detector chip with the F-P resonator. The results showed that the maximum voltage responsivity of the Nb
5
N
6
detector with the reflective grating-coupled structure was 2 times larger than the Nb
5
N
6
detector with the F-P resonator. It indicates that the reflective grating-coupled structure can efficiently improve the detection efficiency of THz detectors. |
| doi_str_mv | 10.1038/s41598-018-26204-y |
| format | Article |
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5
N
6
array detector chip and compared with the Nb
5
N
6
array detector chip with the F-P resonator. The results showed that the maximum voltage responsivity of the Nb
5
N
6
detector with the reflective grating-coupled structure was 2 times larger than the Nb
5
N
6
detector with the F-P resonator. It indicates that the reflective grating-coupled structure can efficiently improve the detection efficiency of THz detectors.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-018-26204-y</identifier><identifier>PMID: 29795176</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>132/124 ; 639/301/1005/1009 ; 639/624/400/561 ; Efficiency ; Electric fields ; Humanities and Social Sciences ; multidisciplinary ; Science ; Science (multidisciplinary) ; Sensors</subject><ispartof>Scientific reports, 2018-05, Vol.8 (1), p.8032-7, Article 8032</ispartof><rights>The Author(s) 2018</rights><rights>2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c540t-e77ff63f947243efde932a81f364b37737194ca3a412c043b1fd3d233c5234cc3</citedby><cites>FETCH-LOGICAL-c540t-e77ff63f947243efde932a81f364b37737194ca3a412c043b1fd3d233c5234cc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5966467/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5966467/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,41096,42165,51551,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29795176$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Xiao, Peng</creatorcontrib><creatorcontrib>Tu, Xuecou</creatorcontrib><creatorcontrib>Kang, Lin</creatorcontrib><creatorcontrib>Jiang, Chengtao</creatorcontrib><creatorcontrib>Zhai, Shimin</creatorcontrib><creatorcontrib>Jiang, Zhou</creatorcontrib><creatorcontrib>Pan, Danfeng</creatorcontrib><creatorcontrib>Chen, Jian</creatorcontrib><creatorcontrib>Jia, Xiaoqing</creatorcontrib><creatorcontrib>Wu, Peiheng</creatorcontrib><title>Reflective grating-coupled structure improves the detection efficiency of THz array detectors</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>A reflective grating-coupled structure on the silicon substrate was designed to improve the detection efficiency of terahertz detectors for the frequency ranging from 0.26 THz to 0.36 THz. By using finite difference time domain (FDTD) solutions, the simulation and optimized design of the grating-coupled structure were carried out. The results showed that the signal was effectively reflected and diffracted by the reflective grating-coupled structure which significantly enhanced the electric field in the place of the detector. The maximum electric field can be increased by 2.8 times than that of the Fabry-Perot resonator. To verify the design results, the reflective grating-coupled structure was applied in the preparation of the Nb
5
N
6
array detector chip and compared with the Nb
5
N
6
array detector chip with the F-P resonator. The results showed that the maximum voltage responsivity of the Nb
5
N
6
detector with the reflective grating-coupled structure was 2 times larger than the Nb
5
N
6
detector with the F-P resonator. It indicates that the reflective grating-coupled structure can efficiently improve the detection efficiency of THz detectors.</description><subject>132/124</subject><subject>639/301/1005/1009</subject><subject>639/624/400/561</subject><subject>Efficiency</subject><subject>Electric fields</subject><subject>Humanities and Social Sciences</subject><subject>multidisciplinary</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><subject>Sensors</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>BENPR</sourceid><recordid>eNp9kU9rFTEUxYNYbKn9Ai4k4MbN1PydTDaCFLWFgiDtsoS8zM1ryrzJM8k8GD-9Gd9rrS7M5gbu75ybm4PQG0rOKeHdhyyo1F1DaNewlhHRzC_QSa2yYZyxl8_ux-gs5wdSj2RaUP0KHTOttKSqPUF338EP4ErYAV4nW8K4blyctgP0OJc0uTIlwGGzTXEHGZd7wD2URRBHDN4HF2B0M44e31z-xDYlOx-ImPJrdOTtkOHsUE_R7ZfPNxeXzfW3r1cXn64bJwUpDSjlfcu9FooJDr4HzZntqOetWHGluKJaOMutoMwRwVfU97xnnDvJuHCOn6KPe9_ttNpA72AsyQ5mm8LGptlEG8zfnTHcm3XcGanbVrSqGrw_GKT4Y4JczCZkB8NgR4hTNstnMiWI6Cr67h_0IU5prOstFKeStXKh2J5yKeacwD89hhKzBGj2AZoaoPkdoJmr6O3zNZ4kj3FVgO-BXFvjGtKf2f-x_QUkNqha</recordid><startdate>20180523</startdate><enddate>20180523</enddate><creator>Xiao, Peng</creator><creator>Tu, Xuecou</creator><creator>Kang, Lin</creator><creator>Jiang, Chengtao</creator><creator>Zhai, Shimin</creator><creator>Jiang, Zhou</creator><creator>Pan, Danfeng</creator><creator>Chen, Jian</creator><creator>Jia, Xiaoqing</creator><creator>Wu, Peiheng</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20180523</creationdate><title>Reflective grating-coupled structure improves the detection efficiency of THz array detectors</title><author>Xiao, Peng ; Tu, Xuecou ; Kang, Lin ; Jiang, Chengtao ; Zhai, Shimin ; Jiang, Zhou ; Pan, Danfeng ; Chen, Jian ; Jia, Xiaoqing ; Wu, Peiheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c540t-e77ff63f947243efde932a81f364b37737194ca3a412c043b1fd3d233c5234cc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>132/124</topic><topic>639/301/1005/1009</topic><topic>639/624/400/561</topic><topic>Efficiency</topic><topic>Electric fields</topic><topic>Humanities and Social Sciences</topic><topic>multidisciplinary</topic><topic>Science</topic><topic>Science (multidisciplinary)</topic><topic>Sensors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xiao, Peng</creatorcontrib><creatorcontrib>Tu, Xuecou</creatorcontrib><creatorcontrib>Kang, Lin</creatorcontrib><creatorcontrib>Jiang, Chengtao</creatorcontrib><creatorcontrib>Zhai, Shimin</creatorcontrib><creatorcontrib>Jiang, Zhou</creatorcontrib><creatorcontrib>Pan, Danfeng</creatorcontrib><creatorcontrib>Chen, Jian</creatorcontrib><creatorcontrib>Jia, Xiaoqing</creatorcontrib><creatorcontrib>Wu, Peiheng</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Scientific reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xiao, Peng</au><au>Tu, Xuecou</au><au>Kang, Lin</au><au>Jiang, Chengtao</au><au>Zhai, Shimin</au><au>Jiang, Zhou</au><au>Pan, Danfeng</au><au>Chen, Jian</au><au>Jia, Xiaoqing</au><au>Wu, Peiheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reflective grating-coupled structure improves the detection efficiency of THz array detectors</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2018-05-23</date><risdate>2018</risdate><volume>8</volume><issue>1</issue><spage>8032</spage><epage>7</epage><pages>8032-7</pages><artnum>8032</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>A reflective grating-coupled structure on the silicon substrate was designed to improve the detection efficiency of terahertz detectors for the frequency ranging from 0.26 THz to 0.36 THz. By using finite difference time domain (FDTD) solutions, the simulation and optimized design of the grating-coupled structure were carried out. The results showed that the signal was effectively reflected and diffracted by the reflective grating-coupled structure which significantly enhanced the electric field in the place of the detector. The maximum electric field can be increased by 2.8 times than that of the Fabry-Perot resonator. To verify the design results, the reflective grating-coupled structure was applied in the preparation of the Nb
5
N
6
array detector chip and compared with the Nb
5
N
6
array detector chip with the F-P resonator. The results showed that the maximum voltage responsivity of the Nb
5
N
6
detector with the reflective grating-coupled structure was 2 times larger than the Nb
5
N
6
detector with the F-P resonator. It indicates that the reflective grating-coupled structure can efficiently improve the detection efficiency of THz detectors.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>29795176</pmid><doi>10.1038/s41598-018-26204-y</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| source | Nature Free; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals; PubMed Central; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry; Springer Nature OA Free Journals |
| subjects | 132/124 639/301/1005/1009 639/624/400/561 Efficiency Electric fields Humanities and Social Sciences multidisciplinary Science Science (multidisciplinary) Sensors |
| title | Reflective grating-coupled structure improves the detection efficiency of THz array detectors |
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