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首页> 外文期刊>Advanced Functional Materials >Manipulable and Hybridized, Ultralow-Threshold Lasing in a Plasmonic Laser Using Elliptical InGaN/GaN Nanorods
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Manipulable and Hybridized, Ultralow-Threshold Lasing in a Plasmonic Laser Using Elliptical InGaN/GaN Nanorods

机译：使用椭圆形InGaN / GaN纳米棒的等离子激光器中可操纵的混合杂化超低阈值激光发射

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摘要

Manipulating stimulated-emission light in nanophotonic devices on scales smaller than their emission wavelengths to meet the requirements for optoelectronic integrations is a challenging but important step. Surface plasmon polaritons (SPPs) are one of the most promising candidates for sub-wavelength optical confinement. In this study, based on the principle of surface plasmon amplification by the stimulated emission of radiation (SPASER), III-Nitride-based plasmonic nanolaser with hybrid metal-oxide-semiconductor (MOS) structures is designed. Using geometrically elliptical nanostructures fabricated by nanoimprint lithography, elliptical nanolasers able to demonstrate single-mode and multimode lasing with an optical pumping power density as low as 0.3 kW cm(-2) at room temperature and a quality Q factor of up to 123 at a wavelength of approximate to 490 nm are achieved. The ultralow lasing threshold is attributed to the SPP-coupling-induced strong electric-field-confinement in the elliptical MOS structures. In accordance with the theoretical and experimental results, the size and shape of the nanorod are the keys for manipulating hybridization of the plasmonic and photonic lasing modes in the SPASER. This finding provides innovative insight that will contribute to realizing a new generation of optoelectronic and information devices.
机译：在纳米光子器件中以小于其发射波长的尺度操纵激发发射光以满足光电集成的要求是一个具有挑战性但重要的步骤。表面等离子体激元极化子（SPPs）是亚波长光学限制最有希望的候选者之一。在这项研究中，基于受激辐射的表面等离激元放大原理（SPASER），设计了具有混合金属氧化物半导体（MOS）结构的基于III氮化物的等离激元纳米激光。使用通过纳米压印光刻技术制造的几何椭圆形纳米结构，椭圆形纳米激光能够展示单模和多模激光，其在室温下的光泵浦功率密度低至0.3 kW cm（-2），在室温下的Q值高达123。获得约490nm的波长。超低激射阈值归因于椭圆MOS结构中SPP耦合引起的强电场约束。根据理论和实验结果，纳米棒的大小和形状是操纵SPASER中等离子体激元和光子激射模式杂交的关键。这一发现提供了创新的见解，将有助于实现新一代的光电和信息设备。

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  • 来源
    《Advanced Functional Materials》 |2017年第37期|1703198.1-1703198.7|共7页
  • 作者

    Tao Tao; Zhi Ting; Liu Bin; Dai Jiangping; Zhuang Zhe; Xie Zili; Chen Peng; Ren Fangfang; Chen Dunjun; Zheng Youdou; Zhang Rong;

  • 作者单位

    Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China;

    Nanjing Univ Posts & Telecommun, Sch Elect Sci & Engn, Nanjing 210023, Jiangsu, Peoples R China;

    Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China;

    Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China;

    Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China;

    Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China;

    Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China;

    Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China;

    Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China;

    Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China;

    Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Adv Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    nanorods; plasmonic lasers; SPASER; surface plasmon polaritons;

    机译：纳米棒;等离子激光器;SPASER;表面等离激元极化子;

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