Modulation behaviors of surface plasmon coupled light-emitting diode

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Title:	Modulation behaviors of surface plasmon coupled light-emitting diode
Authors:	姚毓峰;Lin, Chun-Han;Su, Chia-Ying;Zhu, Erwin;Yao, Yu-Feng;Hsieh, Chieh;Tu, Charng-Gan;Chen, Hao-Tsung;Kiang, Yean-Woei;Yang, C. C.
Contributors:	資訊電機學院電機工程學系
Date:	2015-03-23
Issue Date:	2026-04-23 14:26:24 (UTC+8)
Publisher:	The Optical Society;United States
Abstract:	摘要： The modulation bandwidths of the light-emitting diodes (LEDs) of different mesa sizes with and without surface plasmon (SP) coupling effect are compared. Due to the significant increase of carrier decay rate, within the size range of LED square-mesa from 60 through 300 micron and the injected current-density range from 139 through 1667 A/cm², the SP coupling can lead to the enhancement of modulation bandwidth by 44-48%, independent of the variations of LED mesa size or injected current level. The enhancement ratios of modulation bandwidth of the samples with SP coupling with respect to those of the samples without SP coupling are lower than the corresponding ratios of the square-root of photoluminescence decay rate due to the increases of their RC time constants (the product of device resistance and capacitance). The increases of the RC time constants in the samples with SP coupling are attributed to the increases of their device resistance levels when the Ag nanoparticles and GaZnO dielectric interlayer are added to the LED surface for effectively inducing SP coupling. 其他題名： Opt Express 出版者： United States 出版日期： 2015-03-23 出處： Optics express, 2015-03, Vol.23 (6), p.8150 資源來源： Optica Publishing Group (Optics Infobase) 識別號： ISSN: 1094-4087 識別號： EISSN: 1094-4087 識別號： DOI: 10.1364/OE.23.008150 識別號： PMID: 25837152
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

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