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Article: An All-Silicon Metalens Integrated with a Mid-Wave Infrared Black Phosphorus Photodiode

TitleAn All-Silicon Metalens Integrated with a Mid-Wave Infrared Black Phosphorus Photodiode
Authors
Keywordsblack phosphorus
infrared photodetectors
layered materials
metasurfaces
signal enhancement
Issue Date2023
Citation
Advanced Optical Materials, 2023 How to Cite?
AbstractBlack phosphorus (BP) is a promising material for mid-wave infrared (MWIR) photodetection because of its direct tunable bandgap and compatibility with a wide range of substrates, particularly silicon. However, optical signal collection in BP devices can be limited by its absorber thickness or active area. Dielectric metasurface lenses, which can be directly integrated into a device's substrate, are a scalable approach to increase the signal collected by BP photodetectors. This work presents the design, fabrication, and characterization of an all-silicon metasurface lens for focusing MWIR light through its substrate. Then, a BP-MoS2 heterojunction photodetector is integrated with the metalens, and MWIR photodetection increases at room temperature. These results demonstrate that integrated metasurface lenses are an excellent approach for boosting the performance of MWIR BP photodetectors.
Persistent Identifierhttp://hdl.handle.net/10722/335464
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLien, Max R.-
dc.contributor.authorWang, Nan-
dc.contributor.authorWenger, Tobias-
dc.contributor.authorWang, Han-
dc.contributor.authorGunapala, Sarath D.-
dc.contributor.authorPovinelli, Michelle L.-
dc.date.accessioned2023-11-17T08:26:08Z-
dc.date.available2023-11-17T08:26:08Z-
dc.date.issued2023-
dc.identifier.citationAdvanced Optical Materials, 2023-
dc.identifier.urihttp://hdl.handle.net/10722/335464-
dc.description.abstractBlack phosphorus (BP) is a promising material for mid-wave infrared (MWIR) photodetection because of its direct tunable bandgap and compatibility with a wide range of substrates, particularly silicon. However, optical signal collection in BP devices can be limited by its absorber thickness or active area. Dielectric metasurface lenses, which can be directly integrated into a device's substrate, are a scalable approach to increase the signal collected by BP photodetectors. This work presents the design, fabrication, and characterization of an all-silicon metasurface lens for focusing MWIR light through its substrate. Then, a BP-MoS2 heterojunction photodetector is integrated with the metalens, and MWIR photodetection increases at room temperature. These results demonstrate that integrated metasurface lenses are an excellent approach for boosting the performance of MWIR BP photodetectors.-
dc.languageeng-
dc.relation.ispartofAdvanced Optical Materials-
dc.subjectblack phosphorus-
dc.subjectinfrared photodetectors-
dc.subjectlayered materials-
dc.subjectmetasurfaces-
dc.subjectsignal enhancement-
dc.titleAn All-Silicon Metalens Integrated with a Mid-Wave Infrared Black Phosphorus Photodiode-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/adom.202301952-
dc.identifier.scopuseid_2-s2.0-85174297071-
dc.identifier.eissn2195-1071-
dc.identifier.isiWOS:001087944200001-

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