Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/141646
Full metadata record
DC FieldValueLanguage
dc.contributor.authorTong, Jinchaoen_US
dc.contributor.authorQu, Yueen_US
dc.contributor.authorSuo, Feien_US
dc.contributor.authorZhou, Weien_US
dc.contributor.authorHuang, Zhimingen_US
dc.contributor.authorZhang, Dao Huaen_US
dc.date.accessioned2020-06-09T14:00:58Z-
dc.date.available2020-06-09T14:00:58Z-
dc.date.issued2018-
dc.identifier.citationTong, J., Qu, Y., Suo, F., Zhou, W., Huang, Z., & Zhang, D. H. (2019). Antenna-assisted subwavelength metal–InGaAs–metal structure for sensitive and direct photodetection of millimeter and terahertz waves. Photonics Research, 7(1), 89-97. doi:10.1364/PRJ.7.000089en_US
dc.identifier.issn2327-9125en_US
dc.identifier.urihttps://hdl.handle.net/10356/141646-
dc.description.abstractMillimeter and terahertz wave photodetectors have a wide range of applications. However, the state-of-the-art techniques lag far behind the urgent demand due to the structure and performance limitations. Here, we report sensitive and direct millimeter and terahertz wave photodetection in compact InGaAs-based subwavelength ohmic metal–semiconductor–metal structures. The photoresponse originates from unidirectional transportation of nonequilibrium electrons induced by surface plasmon polaritons under irradiation. The detected quantum energies of electromagnetic waves are far below the bandgap of InGaAs, offering, to the best of our knowledge, a novel direct photoelectric conversion pathway for InGaAs beyond its bandgap limit. The achieved room temperature rise time and noise equivalent power of the detector are 45 μs and 20  pW·Hz−1/2, respectively, at the 0.0375 THz (8 mm) wave. The detected wavelength is tunable by mounting different coupling antennas. Room temperature terahertz imaging of macroscopic samples at around 0.166 THz is also demonstrated. This work opens an avenue for sensitive and large-area uncooled millimeter and terahertz focal planar arrays.en_US
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.description.sponsorshipEDB (Economic Devt. Board, S’pore)en_US
dc.language.isoenen_US
dc.relation2017-T1-002-117en_US
dc.relation.ispartofPhotonics Researchen_US
dc.rights© 2019 Chinese Laser Press. All rights reserved. This paper was published by OSA Publishing in Photonics Research and is made available with permission of Chinese Laser Press.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleAntenna-assisted subwavelength metal–InGaAs–metal structure for sensitive and direct photodetection of millimeter and terahertz wavesen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.identifier.doi10.1364/PRJ.7.000089-
dc.description.versionAccepted versionen_US
dc.identifier.issue1en_US
dc.identifier.volume7en_US
dc.identifier.spage89en_US
dc.identifier.epage97en_US
dc.subject.keywordsPhotodetectorsen_US
dc.subject.keywordsInGaAsen_US
item.fulltextWith Fulltext-
item.grantfulltextopen-
Appears in Collections:EEE Journal Articles

PublonsTM
Citations

5
Updated on Mar 2, 2021

Page view(s)

29
Updated on Mar 6, 2021

Download(s)

6
Updated on Mar 6, 2021

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.