Cargando…
On-Chip Ultrafast Plasmonic Graphene Hot Electron Bolometric Photodetector
[Image: see text] We investigate a waveguide-integrated plasmonic graphene photodetector operating based on the hot carrier photo-bolometric effect, which is characterized simultaneously by high responsivity on the scale of hundreds of A/W and high speed on the scale of 100’s of GHz that is limited...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2020
|
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7315610/ https://www.ncbi.nlm.nih.gov/pubmed/32596608 http://dx.doi.org/10.1021/acsomega.0c01308 |
_version_ | 1783550293008449536 |
---|---|
author | Gosciniak, Jacek Khurgin, Jacob B. |
author_facet | Gosciniak, Jacek Khurgin, Jacob B. |
author_sort | Gosciniak, Jacek |
collection | PubMed |
description | [Image: see text] We investigate a waveguide-integrated plasmonic graphene photodetector operating based on the hot carrier photo-bolometric effect, which is characterized simultaneously by high responsivity on the scale of hundreds of A/W and high speed on the scale of 100’s of GHz that is limited only by the product of the electronic heat capacitance and thermal resistance. We develop a theory of the bolometric effect originating from the band nonparabolicity of graphene and estimate responsivity due to the bolometric effect, which is shown to significantly surpass the responsivity of the coexisting photoconductive effect, thus convincingly demonstrating the dominance of the bolometric effect. Based on the theory, we propose a novel detector configuration based on a hybrid waveguide that allows for efficient absorption in graphene over a short distance and subsequently a large change of conductivity. The results demonstrate the potential of graphene for high-speed communication systems. |
format | Online Article Text |
id | pubmed-7315610 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-73156102020-06-26 On-Chip Ultrafast Plasmonic Graphene Hot Electron Bolometric Photodetector Gosciniak, Jacek Khurgin, Jacob B. ACS Omega [Image: see text] We investigate a waveguide-integrated plasmonic graphene photodetector operating based on the hot carrier photo-bolometric effect, which is characterized simultaneously by high responsivity on the scale of hundreds of A/W and high speed on the scale of 100’s of GHz that is limited only by the product of the electronic heat capacitance and thermal resistance. We develop a theory of the bolometric effect originating from the band nonparabolicity of graphene and estimate responsivity due to the bolometric effect, which is shown to significantly surpass the responsivity of the coexisting photoconductive effect, thus convincingly demonstrating the dominance of the bolometric effect. Based on the theory, we propose a novel detector configuration based on a hybrid waveguide that allows for efficient absorption in graphene over a short distance and subsequently a large change of conductivity. The results demonstrate the potential of graphene for high-speed communication systems. American Chemical Society 2020-06-08 /pmc/articles/PMC7315610/ /pubmed/32596608 http://dx.doi.org/10.1021/acsomega.0c01308 Text en Copyright © 2020 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Gosciniak, Jacek Khurgin, Jacob B. On-Chip Ultrafast Plasmonic Graphene Hot Electron Bolometric Photodetector |
title | On-Chip Ultrafast Plasmonic Graphene
Hot Electron Bolometric Photodetector |
title_full | On-Chip Ultrafast Plasmonic Graphene
Hot Electron Bolometric Photodetector |
title_fullStr | On-Chip Ultrafast Plasmonic Graphene
Hot Electron Bolometric Photodetector |
title_full_unstemmed | On-Chip Ultrafast Plasmonic Graphene
Hot Electron Bolometric Photodetector |
title_short | On-Chip Ultrafast Plasmonic Graphene
Hot Electron Bolometric Photodetector |
title_sort | on-chip ultrafast plasmonic graphene
hot electron bolometric photodetector |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7315610/ https://www.ncbi.nlm.nih.gov/pubmed/32596608 http://dx.doi.org/10.1021/acsomega.0c01308 |
work_keys_str_mv | AT gosciniakjacek onchipultrafastplasmonicgraphenehotelectronbolometricphotodetector AT khurginjacobb onchipultrafastplasmonicgraphenehotelectronbolometricphotodetector |