CUED Publications database

Single-nanowire spectrometers

Yang, Z and Albrow-Owen, T and Cui, H and Alexander-Webber, J and Gu, F and Wang, X and Wu, TC and Zhuge, M and Williams, C and Wang, P and Zayats, AV and Cai, W and Dai, L and Hofmann, S and Overend, M and Tong, L and Yang, Q and Sun, Z and Hasan, T (2019) Single-nanowire spectrometers. Science, 365. pp. 1017-1020. ISSN 0036-8075

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Abstract

© 2019 American Association for the Advancement of Science. All rights reserved. Spectrometers with ever-smaller footprints are sought after for a wide range of applications in which minimized size and weight are paramount, including emerging in situ characterization techniques. We report on an ultracompact microspectrometer design based on a single compositionally engineered nanowire. This platform is independent of the complex optical components or cavities that tend to constrain further miniaturization of current systems. We show that incident spectra can be computationally reconstructed from the different spectral response functions and measured photocurrents along the length of the nanowire. Our devices are capable of accurate, visible-range monochromatic and broadband light reconstruction, as well as spectral imaging from centimeter-scale focal planes down to lensless, single-cell-scale in situ mapping.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Div D > Structures
Depositing User: Cron Job
Date Deposited: 15 Aug 2019 01:19
Last Modified: 25 Jun 2020 10:25
DOI: 10.1126/science.aax8814