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🏛️國立陽明交通大學機構典藏

Author: search.filters.author.Chung, Yi-ChengSubject: search.filters.subject.Aluminum

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Now showing 1 - 3 of 3
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    Tuning the Characteristics of Surface Plasmon Polariton Nanolasers by Tailoring the Dispersion Relation
    (2017-01-01)
    Lu, Tien-Chang
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    Chou, Yu-Hsun
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    Hong, Kuo-Bin
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    Chung, Yi-Cheng
    ;
    Lin, Tzy-Rong
    Nanolasers with ultra-compact footprint are able to provide high intensity coherent light, which have various potential applications in high capacity signal processing, biosensing, and sub-wavelength imaging. Among various nanolasers, those lasers with cavities surrounded with metals have shown to have superior light emission properties due to the surface plasmon effect providing better field confinement capability and allowing exotic light-matter interaction. In this talk, we report robust ultraviolet ZnO nanolaser by using silver (Ag) [1] and aluminum (Al) [2] to strongly shrink the mode volume. The nanolasers operated at room temperature and even high temperature (353K) shows several distinct features including an extremely small mode volume, large Purcell factor and group index. Comparison of characteristics between Ag-and Al-based will also be made.
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    Metal for Plasmonic Ultraviolet Laser: Al or Ag?
    (2017-11-01)
    Chou, Yu-Hsun
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    Hong, Kuo-Bin
    ;
    Chung, Yi-Cheng
    ;
    Chang, Chun-Tse
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    Chou, Bo-Tsun
    Surface plasmon polariton (SPP) nanolasers have recently emerged as promising candidates for generating a coherent light source in nanophotonic integration circuits. The properties of SPP nanolasers, such as group velocity, mode area, modulation speed, and threshold performance, can be manipulated using a dispersion relation. In this study, we investigated the characteristics of SPP nanolasers operated near and far from the SP frequency. Our results indicated that SPP nanolaser performance can be significantly influenced by manipulating the dispersion relation.
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    High-operation-temperature Aluminum-based SPP Nanolasers
    (2016)
    Chou, Yu-Hsun
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    Hong, Kuo-Bin
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    Chou, Bo-Tsun
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    Wu, Yen-Mo
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    Shih, Jheng-Hong
    Metal-insulator-semiconductor structures has widely adopted in plasmonics lasers. However, we found that the insulator is not necessary if permittivity combination of laser structures is properly designed. Single-mode laser operation was demonstrate in devices without artificial insulator layers. Moreover, the operation temperature can achieve to 353 K.