Micro-Extinction Spectroscopy (MExS): a versatile optical characterization technique

Kumar, Anjli and Villarreal, Eduardo and Zhang, Xiang and Ringe, Emilie (2018) Micro-Extinction Spectroscopy (MExS): a versatile optical characterization technique. Advanced Structural and Chemical Imaging, 4 (1). ISSN 2198-0926 DOI https://doi.org/10.1186/s40679-018-0057-6

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Abstract

Micro-Extinction Spectroscopy (MExS), a flexible, optical, and spatial-scanning hyperspectral technique, has been developed and is described with examples. Software and hardware capabilities are described in detail, including transmission, reflectance, and scattering measurements. Each capability is demonstrated through a case study of nanomaterial characterization, i.e., transmission of transition metal dichalcogenides revealing transition energy and efficiency, reflectance of transition metal dichalcogenides grown on nontransparent substrates identifying the presence of monolayer following electrochemical ablation, and scattering to study single plasmonic nanoparticles and obtain values for the refractive index sensitivity and sensing figure of merit of over a hundred single particles with various shapes and sizes. With the growing integration of nanotechnology in many areas, MExS can be a powerful tool to both characterize and test nanomaterials.

Item Type: Article
Uncontrolled Keywords: 2018AREP; IA74
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
07 - Gold Open Access
Journal or Publication Title: Advanced Structural and Chemical Imaging
Volume: 4
Identification Number: https://doi.org/10.1186/s40679-018-0057-6
Depositing User: Sarah Humbert
Date Deposited: 01 Mar 2019 12:01
Last Modified: 01 Mar 2019 12:01
URI: http://eprints.esc.cam.ac.uk/id/eprint/4405

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