Dirac point induced ultralow-threshold laser and giant optoelectronic quantum oscillations in graphene-based heterojunctions

In graphene, electrons possess zero effective mass in proximity to the Dirac point, an unusual feature that could trigger the development of novel photonic devices. Here, the authors combine graphene quantum dots with two graphene layers and observe laser action with ultralow threshold.

Bibliographic Details
Main Authors: Golam Haider, Rini Ravindranath, Tzu-Pei Chen, Prathik Roy, Pradip Kumar Roy, Shu-Yi Cai, Huan-Tsung Chang, Yang-Fang Chen
Format: Article
Language:English
Published: Nature Portfolio 2017-08-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-017-00345-6
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author Golam Haider
Rini Ravindranath
Tzu-Pei Chen
Prathik Roy
Pradip Kumar Roy
Shu-Yi Cai
Huan-Tsung Chang
Yang-Fang Chen
author_facet Golam Haider
Rini Ravindranath
Tzu-Pei Chen
Prathik Roy
Pradip Kumar Roy
Shu-Yi Cai
Huan-Tsung Chang
Yang-Fang Chen
author_sort Golam Haider
collection DOAJ
description In graphene, electrons possess zero effective mass in proximity to the Dirac point, an unusual feature that could trigger the development of novel photonic devices. Here, the authors combine graphene quantum dots with two graphene layers and observe laser action with ultralow threshold.
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spelling doaj.art-07b58f2a5d83473796e43d370383f9a92022-12-21T22:58:13ZengNature PortfolioNature Communications2041-17232017-08-01811910.1038/s41467-017-00345-6Dirac point induced ultralow-threshold laser and giant optoelectronic quantum oscillations in graphene-based heterojunctionsGolam Haider0Rini Ravindranath1Tzu-Pei Chen2Prathik Roy3Pradip Kumar Roy4Shu-Yi Cai5Huan-Tsung Chang6Yang-Fang Chen7Department of Engineering and System Science, National TsingHua University, No. 101, Section 2, Kuang-Fu RoadNano-Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, No. 128, Section 2, Academia Rd, NangangNano-Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, No. 128, Section 2, Academia Rd, NangangDepartment of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Rd, Da’anDepartment of Physics, National Taiwan University, No. 1, Section 4, Roosevelt Rd, Da’anDepartment of Physics, National Taiwan University, No. 1, Section 4, Roosevelt Rd, Da’anDepartment of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Rd, Da’anDepartment of Physics, National Taiwan University, No. 1, Section 4, Roosevelt Rd, Da’anIn graphene, electrons possess zero effective mass in proximity to the Dirac point, an unusual feature that could trigger the development of novel photonic devices. Here, the authors combine graphene quantum dots with two graphene layers and observe laser action with ultralow threshold.https://doi.org/10.1038/s41467-017-00345-6
spellingShingle Golam Haider
Rini Ravindranath
Tzu-Pei Chen
Prathik Roy
Pradip Kumar Roy
Shu-Yi Cai
Huan-Tsung Chang
Yang-Fang Chen
Dirac point induced ultralow-threshold laser and giant optoelectronic quantum oscillations in graphene-based heterojunctions
Nature Communications
title Dirac point induced ultralow-threshold laser and giant optoelectronic quantum oscillations in graphene-based heterojunctions
title_full Dirac point induced ultralow-threshold laser and giant optoelectronic quantum oscillations in graphene-based heterojunctions
title_fullStr Dirac point induced ultralow-threshold laser and giant optoelectronic quantum oscillations in graphene-based heterojunctions
title_full_unstemmed Dirac point induced ultralow-threshold laser and giant optoelectronic quantum oscillations in graphene-based heterojunctions
title_short Dirac point induced ultralow-threshold laser and giant optoelectronic quantum oscillations in graphene-based heterojunctions
title_sort dirac point induced ultralow threshold laser and giant optoelectronic quantum oscillations in graphene based heterojunctions
url https://doi.org/10.1038/s41467-017-00345-6
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