Modal refractive index measurement in nanowire lasers—a correlative approach

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

Research output: Contribution to journal › Comment / Debate › Research › peer-review

11 Citations (Scopus)

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
Article number	035004
Number of pages	6
Journal	Nano Futures
Volume	2
Issue number	3
DOIs	https://doi.org/10.1088/2399-1984/aad0c6
Publication status	Published - 12 Jul 2018
Externally published	Yes

Keywords

III
Multimodal characterisation
Nanolaser
V nanowire lasers

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10.1088/2399-1984/aad0c6

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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 ng = 4.7 ± 0.3. ",

keywords = "III, Multimodal characterisation, Nanolaser, V nanowire lasers",

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

AU - Parkinson, Patrick

AU - Alanis, 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 ng = 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 ng = 4.7 ± 0.3.

KW - III

KW - Multimodal characterisation

KW - Nanolaser

KW - V nanowire lasers

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U2 - 10.1088/2399-1984/aad0c6

DO - 10.1088/2399-1984/aad0c6

M3 - Comment / Debate

AN - SCOPUS:85059859140

SN - 2399-1984

VL - 2

JO - Nano Futures

JF - Nano Futures

IS - 3

M1 - 035004

ER -

Modal refractive index measurement in nanowire lasers—a correlative approach

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Keywords

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