Optically-Pumped Single-Mode Deep-Ultraviolet Microdisk Lasers with AlGaN-Based Multiple Quantum Wells on Si Substrate

Yiyun Zhang; Hongjian Li; Panpan Li; Arash Dehzangi; Liancheng Wang; Xiaoyan Yi; Guohong Wang

doi:10.1109/JPHOT.2017.2752207

Optically-Pumped Single-Mode Deep-Ultraviolet Microdisk Lasers with AlGaN-Based Multiple Quantum Wells on Si Substrate

Yiyun Zhang^*, Hongjian Li, Panpan Li, Arash Dehzangi, Liancheng Wang, Xiaoyan Yi, Guohong Wang

^*Corresponding author for this work

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

9 Scopus citations

Abstract

In this work, we report demonstration of optically-pumped single-mode deep-ultraviolet lasing actions operating at room temperature from ∼1-μm 150-nm-thick undercut microdisks with AlN/Al_0.35Ga _0.65N (5.5 nm/2.5 nm) multiple quantum wells. These AlGaN-based microdisks are grown on Si substrate by metal-organic chemical vapor deposition. The lasing wavelength centers at ∼300.1 nm with the linewidth of ∼1.0 nm as the excitation exceeds the lasing threshold of ∼24.2 mJ/cm². An emission coupling factor (β) of 9.2 × 10^-2 is estimated based on the light output characteristics of the AlN/AlGaN microdisks with increasing the pumping densities. Concurrently, a 100 meV blue-shift in the mode energy has also been observed. The lasing spectral peak is attributed to fundamental-order transverse-electric whispering-gallery modes, confirmed by three-dimensional finite-difference time-domain simulations.

Original language	English (US)
Article number	8038044
Journal	IEEE Photonics Journal
Volume	9
Issue number	5
DOIs	https://doi.org/10.1109/JPHOT.2017.2752207
State	Published - Oct 2017
Externally published	Yes

Keywords

Microdisk cavities
deep ultraviolet lasing
whispering-gallery modes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/JPHOT.2017.2752207

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title = "Optically-Pumped Single-Mode Deep-Ultraviolet Microdisk Lasers with AlGaN-Based Multiple Quantum Wells on Si Substrate",

abstract = "In this work, we report demonstration of optically-pumped single-mode deep-ultraviolet lasing actions operating at room temperature from ∼1-μm 150-nm-thick undercut microdisks with AlN/Al0.35Ga 0.65N (5.5 nm/2.5 nm) multiple quantum wells. These AlGaN-based microdisks are grown on Si substrate by metal-organic chemical vapor deposition. The lasing wavelength centers at ∼300.1 nm with the linewidth of ∼1.0 nm as the excitation exceeds the lasing threshold of ∼24.2 mJ/cm2. An emission coupling factor (β) of 9.2 × 10-2 is estimated based on the light output characteristics of the AlN/AlGaN microdisks with increasing the pumping densities. Concurrently, a 100 meV blue-shift in the mode energy has also been observed. The lasing spectral peak is attributed to fundamental-order transverse-electric whispering-gallery modes, confirmed by three-dimensional finite-difference time-domain simulations.",

keywords = "Microdisk cavities, deep ultraviolet lasing, whispering-gallery modes",

author = "Yiyun Zhang and Hongjian Li and Panpan Li and Arash Dehzangi and Liancheng Wang and Xiaoyan Yi and Guohong Wang",

note = "Publisher Copyright: {\textcopyright} 2009-2012 IEEE.",

year = "2017",

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doi = "10.1109/JPHOT.2017.2752207",

language = "English (US)",

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T1 - Optically-Pumped Single-Mode Deep-Ultraviolet Microdisk Lasers with AlGaN-Based Multiple Quantum Wells on Si Substrate

AU - Zhang, Yiyun

AU - Li, Hongjian

AU - Li, Panpan

AU - Dehzangi, Arash

AU - Wang, Liancheng

AU - Yi, Xiaoyan

AU - Wang, Guohong

PY - 2017/10

Y1 - 2017/10

N2 - In this work, we report demonstration of optically-pumped single-mode deep-ultraviolet lasing actions operating at room temperature from ∼1-μm 150-nm-thick undercut microdisks with AlN/Al0.35Ga 0.65N (5.5 nm/2.5 nm) multiple quantum wells. These AlGaN-based microdisks are grown on Si substrate by metal-organic chemical vapor deposition. The lasing wavelength centers at ∼300.1 nm with the linewidth of ∼1.0 nm as the excitation exceeds the lasing threshold of ∼24.2 mJ/cm2. An emission coupling factor (β) of 9.2 × 10-2 is estimated based on the light output characteristics of the AlN/AlGaN microdisks with increasing the pumping densities. Concurrently, a 100 meV blue-shift in the mode energy has also been observed. The lasing spectral peak is attributed to fundamental-order transverse-electric whispering-gallery modes, confirmed by three-dimensional finite-difference time-domain simulations.

AB - In this work, we report demonstration of optically-pumped single-mode deep-ultraviolet lasing actions operating at room temperature from ∼1-μm 150-nm-thick undercut microdisks with AlN/Al0.35Ga 0.65N (5.5 nm/2.5 nm) multiple quantum wells. These AlGaN-based microdisks are grown on Si substrate by metal-organic chemical vapor deposition. The lasing wavelength centers at ∼300.1 nm with the linewidth of ∼1.0 nm as the excitation exceeds the lasing threshold of ∼24.2 mJ/cm2. An emission coupling factor (β) of 9.2 × 10-2 is estimated based on the light output characteristics of the AlN/AlGaN microdisks with increasing the pumping densities. Concurrently, a 100 meV blue-shift in the mode energy has also been observed. The lasing spectral peak is attributed to fundamental-order transverse-electric whispering-gallery modes, confirmed by three-dimensional finite-difference time-domain simulations.

KW - Microdisk cavities

KW - deep ultraviolet lasing

KW - whispering-gallery modes

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Optically-Pumped Single-Mode Deep-Ultraviolet Microdisk Lasers with AlGaN-Based Multiple Quantum Wells on Si Substrate

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ASJC Scopus subject areas

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