Ultralow Threshold, Single-Mode InGaAs/GaAs Multiquantum Disk Nanowire Lasers

Xutao Zhang; Ruixuan Yi; Nikita Gagrani; Ziyuan Li; Fanlu Zhang; Xuetao Gan; Xiaomei Yao; Xiaoming Yuan; Naiyin Wang; Jianlin Zhao; Pingping Chen; Wei Lu; Lan Fu; Hark Hoe Tan; Chennupati Jagadish

doi:10.1021/acsnano.1c02425

Ultralow Threshold, Single-Mode InGaAs/GaAs Multiquantum Disk Nanowire Lasers

Xutao Zhang, Ruixuan Yi, Nikita Gagrani, Ziyuan Li, Fanlu Zhang, Xuetao Gan^*, Xiaomei Yao, Xiaoming Yuan, Naiyin Wang, Jianlin Zhao, Pingping Chen^*, Wei Lu^*, Lan Fu, Hark Hoe Tan, Chennupati Jagadish

^*Corresponding author for this work

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

24 Citations (Scopus)

Abstract

We present single-mode nanowire (NW) lasers with an ultralow threshold in the near-infrared spectral range. To ensure the single-mode operation, the NW diameter and length are reduced specifically to minimize the longitudinal and transverse modes of the NW cavity. Increased optical losses and reduced gain volume by the dimension reduction are compensated by an excellent NW morphology and InGaAs/GaAs multiquantum disks. At 5 K, a threshold low as 1.6 μJ/cm2 per pulse is achieved with a resulting quality factor exceeding 6400. By further passivating the NW with an AlGaAs shell to suppress surface nonradiative recombination, single-mode lasing operation is obtained with a threshold of only 48 μJ/cm2 per pulse at room temperature with a high characteristic temperature of 223 K and power output of ∼0.9 μW. These single-mode, ultralow threshold, high power output NW lasers are promising for the development of near-infrared nanoscale coherent light sources for integrated photonic circuits, sensing, and spectroscopy.

Original language	English
Pages (from-to)	9126-9133
Number of pages	8
Journal	ACS Nano
Volume	15
Issue number	5
DOIs	https://doi.org/10.1021/acsnano.1c02425
Publication status	Published - 25 May 2021

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title = "Ultralow Threshold, Single-Mode InGaAs/GaAs Multiquantum Disk Nanowire Lasers",

abstract = "We present single-mode nanowire (NW) lasers with an ultralow threshold in the near-infrared spectral range. To ensure the single-mode operation, the NW diameter and length are reduced specifically to minimize the longitudinal and transverse modes of the NW cavity. Increased optical losses and reduced gain volume by the dimension reduction are compensated by an excellent NW morphology and InGaAs/GaAs multiquantum disks. At 5 K, a threshold low as 1.6 μJ/cm2 per pulse is achieved with a resulting quality factor exceeding 6400. By further passivating the NW with an AlGaAs shell to suppress surface nonradiative recombination, single-mode lasing operation is obtained with a threshold of only 48 μJ/cm2 per pulse at room temperature with a high characteristic temperature of 223 K and power output of ∼0.9 μW. These single-mode, ultralow threshold, high power output NW lasers are promising for the development of near-infrared nanoscale coherent light sources for integrated photonic circuits, sensing, and spectroscopy.",

keywords = "low threshold, nanowire laser, near-infrared, quantum disks, single-mode",

author = "Xutao Zhang and Ruixuan Yi and Nikita Gagrani and Ziyuan Li and Fanlu Zhang and Xuetao Gan and Xiaomei Yao and Xiaoming Yuan and Naiyin Wang and Jianlin Zhao and Pingping Chen and Wei Lu and Lan Fu and Tan, {Hark Hoe} and Chennupati Jagadish",

note = "Publisher Copyright: {\textcopyright} 2021 American Chemical Society.",

year = "2021",

month = may,

day = "25",

doi = "10.1021/acsnano.1c02425",

language = "English",

volume = "15",

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journal = "ACS Nano",

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TY - JOUR

T1 - Ultralow Threshold, Single-Mode InGaAs/GaAs Multiquantum Disk Nanowire Lasers

AU - Zhang, Xutao

AU - Yi, Ruixuan

AU - Gagrani, Nikita

AU - Li, Ziyuan

AU - Zhang, Fanlu

AU - Gan, Xuetao

AU - Yao, Xiaomei

AU - Yuan, Xiaoming

AU - Wang, Naiyin

AU - Zhao, Jianlin

AU - Chen, Pingping

AU - Lu, Wei

AU - Fu, Lan

AU - Tan, Hark Hoe

AU - Jagadish, Chennupati

PY - 2021/5/25

Y1 - 2021/5/25

N2 - We present single-mode nanowire (NW) lasers with an ultralow threshold in the near-infrared spectral range. To ensure the single-mode operation, the NW diameter and length are reduced specifically to minimize the longitudinal and transverse modes of the NW cavity. Increased optical losses and reduced gain volume by the dimension reduction are compensated by an excellent NW morphology and InGaAs/GaAs multiquantum disks. At 5 K, a threshold low as 1.6 μJ/cm2 per pulse is achieved with a resulting quality factor exceeding 6400. By further passivating the NW with an AlGaAs shell to suppress surface nonradiative recombination, single-mode lasing operation is obtained with a threshold of only 48 μJ/cm2 per pulse at room temperature with a high characteristic temperature of 223 K and power output of ∼0.9 μW. These single-mode, ultralow threshold, high power output NW lasers are promising for the development of near-infrared nanoscale coherent light sources for integrated photonic circuits, sensing, and spectroscopy.

AB - We present single-mode nanowire (NW) lasers with an ultralow threshold in the near-infrared spectral range. To ensure the single-mode operation, the NW diameter and length are reduced specifically to minimize the longitudinal and transverse modes of the NW cavity. Increased optical losses and reduced gain volume by the dimension reduction are compensated by an excellent NW morphology and InGaAs/GaAs multiquantum disks. At 5 K, a threshold low as 1.6 μJ/cm2 per pulse is achieved with a resulting quality factor exceeding 6400. By further passivating the NW with an AlGaAs shell to suppress surface nonradiative recombination, single-mode lasing operation is obtained with a threshold of only 48 μJ/cm2 per pulse at room temperature with a high characteristic temperature of 223 K and power output of ∼0.9 μW. These single-mode, ultralow threshold, high power output NW lasers are promising for the development of near-infrared nanoscale coherent light sources for integrated photonic circuits, sensing, and spectroscopy.

KW - low threshold

KW - nanowire laser

KW - near-infrared

KW - quantum disks

KW - single-mode

UR - http://www.scopus.com/inward/record.url?scp=85106371686&partnerID=8YFLogxK

U2 - 10.1021/acsnano.1c02425

DO - 10.1021/acsnano.1c02425

M3 - Article

SN - 1936-0851

VL - 15

SP - 9126

EP - 9133

JO - ACS Nano

JF - ACS Nano

IS - 5

ER -

Ultralow Threshold, Single-Mode InGaAs/GaAs Multiquantum Disk Nanowire Lasers

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