National Tsing Hua University Institutional Repository:Lasing on Higher-Order Whispering Gallery Modes at Room Temperature
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    NTHUR > College of Electrical Engineering and Computer Science > Department of Electrical Engineering > EE Conference Papers >  Lasing on Higher-Order Whispering Gallery Modes at Room Temperature

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    Title: Lasing on Higher-Order Whispering Gallery Modes at Room Temperature
    Authors: Chih-Yao Chen;YuanYao Lin;Ching-Jen Cheng;Tsin-Dong Lee;Ray-Kuang Lee
    Teacher: 李瑞光
    Date: 2009
    Publisher: Optical Society of America
    Relation: CLEO/IQEC JThE95, Baltimore, USA, May 31-June 5, 2009, Pages 1-2
    Keywords: Room Temperature
    Abstract: We report a direct method to observe higher-order whispering gallery modes in vertical cavity surface emitting lasers (VCSELs) at room temperature. Instead of introducing any defect mode, we show that suppression of lower-order cavity modes can be achieved by destroying vertical reflectors with a surface micro-structure. Perfect whispering gallery modes with an azimuthal number as large as 41 are observed in experiments through collecting near-field radiation patterns, as well as in numerical simulations.
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    Appears in Collections:[Department of Electrical Engineering] EE Conference Papers

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