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Graphene-contact electrically driven microdisk lasers
Active nanophotonic devices are attractive due to their low-power consumption, ultrafast modulation speed and high-density integration. Although electrical operation is required for practical implementation of these devices, it is not straightforward to introduce a proper current path into such a wa...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Pub. Group
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3493654/ https://www.ncbi.nlm.nih.gov/pubmed/23047681 http://dx.doi.org/10.1038/ncomms2137 |
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author | Kim, Yoon-Ho Kwon, Soon-Hong Lee, Jung Min Hwang, Min-Soo Kang, Ju-Hyung Park, Won Il Park, Hong-Gyu |
author_facet | Kim, Yoon-Ho Kwon, Soon-Hong Lee, Jung Min Hwang, Min-Soo Kang, Ju-Hyung Park, Won Il Park, Hong-Gyu |
author_sort | Kim, Yoon-Ho |
collection | PubMed |
description | Active nanophotonic devices are attractive due to their low-power consumption, ultrafast modulation speed and high-density integration. Although electrical operation is required for practical implementation of these devices, it is not straightforward to introduce a proper current path into such a wavelength-scale nanostructure without affecting the optical properties. For example, to demonstrate electrically driven nanolasers, complicated fabrication techniques have been used thus far. Here we report an electrically driven microdisk laser using a transparent graphene electrode. Current is injected efficiently through the graphene sheet covering the top surface of the microdisk cavity, and, for the first time, lasing operation was achieved with a low-threshold current of ~300 μA at room temperature. In addition, we measured significant electroluminescence from a graphene-contact subwavelength-scale single nanopillar structure. This work represents a new paradigm for the practical applications of integrated photonic systems, by conformally mounting graphene on the complex surfaces of non-planar three-dimensional nanostructures. |
format | Online Article Text |
id | pubmed-3493654 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-34936542012-11-09 Graphene-contact electrically driven microdisk lasers Kim, Yoon-Ho Kwon, Soon-Hong Lee, Jung Min Hwang, Min-Soo Kang, Ju-Hyung Park, Won Il Park, Hong-Gyu Nat Commun Article Active nanophotonic devices are attractive due to their low-power consumption, ultrafast modulation speed and high-density integration. Although electrical operation is required for practical implementation of these devices, it is not straightforward to introduce a proper current path into such a wavelength-scale nanostructure without affecting the optical properties. For example, to demonstrate electrically driven nanolasers, complicated fabrication techniques have been used thus far. Here we report an electrically driven microdisk laser using a transparent graphene electrode. Current is injected efficiently through the graphene sheet covering the top surface of the microdisk cavity, and, for the first time, lasing operation was achieved with a low-threshold current of ~300 μA at room temperature. In addition, we measured significant electroluminescence from a graphene-contact subwavelength-scale single nanopillar structure. This work represents a new paradigm for the practical applications of integrated photonic systems, by conformally mounting graphene on the complex surfaces of non-planar three-dimensional nanostructures. Nature Pub. Group 2012-10-09 /pmc/articles/PMC3493654/ /pubmed/23047681 http://dx.doi.org/10.1038/ncomms2137 Text en Copyright © 2012, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ |
spellingShingle | Article Kim, Yoon-Ho Kwon, Soon-Hong Lee, Jung Min Hwang, Min-Soo Kang, Ju-Hyung Park, Won Il Park, Hong-Gyu Graphene-contact electrically driven microdisk lasers |
title | Graphene-contact electrically driven microdisk lasers |
title_full | Graphene-contact electrically driven microdisk lasers |
title_fullStr | Graphene-contact electrically driven microdisk lasers |
title_full_unstemmed | Graphene-contact electrically driven microdisk lasers |
title_short | Graphene-contact electrically driven microdisk lasers |
title_sort | graphene-contact electrically driven microdisk lasers |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3493654/ https://www.ncbi.nlm.nih.gov/pubmed/23047681 http://dx.doi.org/10.1038/ncomms2137 |
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