High refractive index in wurtzite GaP measured from Fabry-Pérot resonances

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High refractive index in wurtzite GaP measured from Fabry-Pérot resonances

Journal Article (2016)

Author(s)

S Assali (Eindhoven University of Technology)

D van Dam (Eindhoven University of Technology)

Jos E.M. Haverkort (Eindhoven University of Technology)

E.P.A.M. Bakkers (TU Delft - QN/Bakkers Lab, Eindhoven University of Technology)

Research Group

QN/Bakkers Lab

DOI related publication

https://doi.org/10.1063/1.4947443

To reference this document use:

https://resolver.tudelft.nl/uuid:a47c840e-93b8-49fb-b5e2-781b50ae9d08

More Info

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Publication Year

2016

Language

English

Research Group

QN/Bakkers Lab

Issue number

17

Volume number

108

Abstract

We investigate the optical emission of wurtzite GaP/Al_0.4Ga_0.6P core/shell nanowires (NWs) transferred to a SiO_x substrate to demonstrate a high degree of waveguiding of the emitted photoluminescence (PL) signal. By analysing the Fabry-Pérot mode spacing in combination with calculations of the guided modes in the NWs, we calculate a very high refractive index of bulk WZ GaP of 4.2 at a wavelength of 600 nm. The measured quality factors up to 600 indicate the excellent optical quality of the nanowire resonator.

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