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Optical design of nanowire absorbers for wavelength selective photodetectors

Mokkapati, Sudha; Saxena, Dhruv; Tan, Hoe Hark; Jagadish, Chennupati

Description

We propose the optical design for the absorptive element of photodetectors to achieve wavelength selective photo response based on resonant guided modes supported in semiconductor nanowires. We show that the waveguiding properties of nanowires result in very high absorption efficiency that can be exploited to reduce the volume of active semiconductor compared to planar photodetectors, without compromising the photocurrent. We present a design based on a group of nanowires with varying diameter...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/103313
Source: Scientific Reports
DOI: 10.1038/srep15339

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