Modal refractive index measurement in nanowire lasers - a correlative approach

Patrick Parkinson; Juan Arturo Alanis Azuara; Kun Peng; Dhruv Saxena; Sudha Mokkapati; Nian Jiang; Lan Fu; Hark Hoe Tan; Chennupati  Jagadish

doi:10.1088/2399-1984/aad0c6

Modal refractive index measurement in nanowire lasers - a correlative approach

Patrick Parkinson, Juan Arturo Alanis Azuara, Kun Peng, Dhruv Saxena, Sudha Mokkapati, Nian Jiang, Lan Fu, Hark Hoe Tan, Chennupati Jagadish

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Abstract

We present a method to correlate multimodal measurements—namely optical spectroscopy and electron microscopy—over large ensembles of randomly distributed single nano-objects. Using an algorithmic approach derived from astrometry, a marker-free method of uniquely associating nano-objects characterised using multiple techniques is described. This approach is applied to nanolasers, enabling an experimental calculation of modal refractive index in sub-micron diameter nanowires. By matching the lasing spectrum and electron microscopy image of 13 nanowire lasers, the refractive index of the TE01 mode in GaAs/AlGaAs multiple-quantum well nanolasers is determined to be n g = 4.7 ± 0.3.

Original language	English
Journal	Nano Futures
Early online date	3 Jul 2018
DOIs	https://doi.org/10.1088/2399-1984/aad0c6
Publication status	Published - 12 Jul 2018

Keywords

III-V Nanowire lasers
Multimodal characterisation

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title = "Modal refractive index measurement in nanowire lasers - a correlative approach",

abstract = "We present a method to correlate multimodal measurements—namely optical spectroscopy and electron microscopy—over large ensembles of randomly distributed single nano-objects. Using an algorithmic approach derived from astrometry, a marker-free method of uniquely associating nano-objects characterised using multiple techniques is described. This approach is applied to nanolasers, enabling an experimental calculation of modal refractive index in sub-micron diameter nanowires. By matching the lasing spectrum and electron microscopy image of 13 nanowire lasers, the refractive index of the TE01 mode in GaAs/AlGaAs multiple-quantum well nanolasers is determined to be n g = 4.7 ± 0.3.",

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T1 - Modal refractive index measurement in nanowire lasers - a correlative approach

AU - Parkinson, Patrick

AU - Alanis Azuara, Juan Arturo

AU - Peng, Kun

AU - Saxena, Dhruv

AU - Mokkapati, Sudha

AU - Jiang, Nian

AU - Fu, Lan

AU - Tan, Hark Hoe

AU - Jagadish, Chennupati

PY - 2018/7/12

Y1 - 2018/7/12

N2 - We present a method to correlate multimodal measurements—namely optical spectroscopy and electron microscopy—over large ensembles of randomly distributed single nano-objects. Using an algorithmic approach derived from astrometry, a marker-free method of uniquely associating nano-objects characterised using multiple techniques is described. This approach is applied to nanolasers, enabling an experimental calculation of modal refractive index in sub-micron diameter nanowires. By matching the lasing spectrum and electron microscopy image of 13 nanowire lasers, the refractive index of the TE01 mode in GaAs/AlGaAs multiple-quantum well nanolasers is determined to be n g = 4.7 ± 0.3.

AB - We present a method to correlate multimodal measurements—namely optical spectroscopy and electron microscopy—over large ensembles of randomly distributed single nano-objects. Using an algorithmic approach derived from astrometry, a marker-free method of uniquely associating nano-objects characterised using multiple techniques is described. This approach is applied to nanolasers, enabling an experimental calculation of modal refractive index in sub-micron diameter nanowires. By matching the lasing spectrum and electron microscopy image of 13 nanowire lasers, the refractive index of the TE01 mode in GaAs/AlGaAs multiple-quantum well nanolasers is determined to be n g = 4.7 ± 0.3.

KW - III-V Nanowire lasers

KW - Multimodal characterisation

U2 - 10.1088/2399-1984/aad0c6

DO - 10.1088/2399-1984/aad0c6

M3 - Article

SN - 2399-1984

JO - Nano Futures

JF - Nano Futures

ER -

Modal refractive index measurement in nanowire lasers - a correlative approach

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