Optical cavity effects in ingan micro-light-emitting diodes with metallic coating

Hong Chen; Houqiang Fu; Xuanqi Huang; Zhijian Lu; Xiaodong Zhang; Jossue Montes; Yuji Zhao

doi:10.1109/JPHOT.2017.2690389

Optical cavity effects in ingan micro-light-emitting diodes with metallic coating

Hong Chen, Houqiang Fu, Xuanqi Huang, Zhijian Lu, Xiaodong Zhang, Jossue Montes, Yuji Zhao

Electrical, Computer, and Energy Engineering, School of (IAFSE-ECEE)

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

We implement finite difference method (FDM) to calculate the optical cavity effects in InGaN micro-light-emitting diodes (LEDs) with metallic coating. The dispersion relation, mode profile, energy density W of electromagnetic field, cavity quality factor Q , and effective mode area A e f f are theoretically investigated. The results show that although the strongest confinement of the field is achieved by surface plasmon modes at GaN/Ag interface, the energy density W is small inside the cavity, leading to a high effective mode area. Additionally, the cavity without metallic coating has the highest Q factors since no metal loss is involved. These results can serve as guidelines for the design and fabrication of high efficiency and high speed LEDs for the applications of solid-state lighting and visible-light communication.

Original language	English (US)
Article number	8200808
Journal	IEEE Photonics Journal
Volume	9
Issue number	3
DOIs	https://doi.org/10.1109/JPHOT.2017.2690389
State	Published - 2017

Keywords

Light-emitting diodes (LEDs)
Plasmonics
Waveguides

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/JPHOT.2017.2690389

Cite this

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title = "Optical cavity effects in ingan micro-light-emitting diodes with metallic coating",

abstract = "We implement finite difference method (FDM) to calculate the optical cavity effects in InGaN micro-light-emitting diodes (LEDs) with metallic coating. The dispersion relation, mode profile, energy density W of electromagnetic field, cavity quality factor Q , and effective mode area A e f f are theoretically investigated. The results show that although the strongest confinement of the field is achieved by surface plasmon modes at GaN/Ag interface, the energy density W is small inside the cavity, leading to a high effective mode area. Additionally, the cavity without metallic coating has the highest Q factors since no metal loss is involved. These results can serve as guidelines for the design and fabrication of high efficiency and high speed LEDs for the applications of solid-state lighting and visible-light communication.",

keywords = "Light-emitting diodes (LEDs), Plasmonics, Waveguides",

author = "Hong Chen and Houqiang Fu and Xuanqi Huang and Zhijian Lu and Xiaodong Zhang and Jossue Montes and Yuji Zhao",

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doi = "10.1109/JPHOT.2017.2690389",

language = "English (US)",

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T1 - Optical cavity effects in ingan micro-light-emitting diodes with metallic coating

AU - Chen, Hong

AU - Fu, Houqiang

AU - Huang, Xuanqi

AU - Lu, Zhijian

AU - Zhang, Xiaodong

AU - Montes, Jossue

AU - Zhao, Yuji

PY - 2017

Y1 - 2017

N2 - We implement finite difference method (FDM) to calculate the optical cavity effects in InGaN micro-light-emitting diodes (LEDs) with metallic coating. The dispersion relation, mode profile, energy density W of electromagnetic field, cavity quality factor Q , and effective mode area A e f f are theoretically investigated. The results show that although the strongest confinement of the field is achieved by surface plasmon modes at GaN/Ag interface, the energy density W is small inside the cavity, leading to a high effective mode area. Additionally, the cavity without metallic coating has the highest Q factors since no metal loss is involved. These results can serve as guidelines for the design and fabrication of high efficiency and high speed LEDs for the applications of solid-state lighting and visible-light communication.

AB - We implement finite difference method (FDM) to calculate the optical cavity effects in InGaN micro-light-emitting diodes (LEDs) with metallic coating. The dispersion relation, mode profile, energy density W of electromagnetic field, cavity quality factor Q , and effective mode area A e f f are theoretically investigated. The results show that although the strongest confinement of the field is achieved by surface plasmon modes at GaN/Ag interface, the energy density W is small inside the cavity, leading to a high effective mode area. Additionally, the cavity without metallic coating has the highest Q factors since no metal loss is involved. These results can serve as guidelines for the design and fabrication of high efficiency and high speed LEDs for the applications of solid-state lighting and visible-light communication.

KW - Light-emitting diodes (LEDs)

KW - Plasmonics

KW - Waveguides

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Optical cavity effects in ingan micro-light-emitting diodes with metallic coating

Abstract

Keywords

ASJC Scopus subject areas

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