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Proceedings Paper

Plasmonic spectra of individual subwavelength particles under the infrared microscope: cells and airborne dust
Author(s): James V. Coe; David B. Lioi; Lindsey Shaffer; Marvin A. Malone; Antriksh Luthra; Aruna Ravi
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Paper Abstract

A plasmonic metal film with a subwavelength hole array (a mesh) is used to capture an individual subwavelength particle, like a single yeast cell or airborne dust particle, and an imaging infrared (IR) microscope, records a scatterfree, IR absorption spectrum of the particle. Individual spectra of wavelength scale particles usually suffer from large scattering effects. This paper starts by demonstrating the plasmonic nature of the mesh in the infrared, proceeds to how this special form of light (surface plasmon polariton mediated transmission resonance) leads to scatter-free IR absorption spectra of individual, subwavelength particles, and ends with work on yeast cells and dust particles from our laboratory air and a household filter.

Paper Details

Date Published: 3 March 2014
PDF: 9 pages
Proc. SPIE 8957, Plasmonics in Biology and Medicine XI, 89570A (3 March 2014); doi: 10.1117/12.2037114
Show Author Affiliations
James V. Coe, The Ohio State Univ. (United States)
David B. Lioi, The Ohio State Univ. (United States)
Lindsey Shaffer, The Ohio State Univ. (United States)
Marvin A. Malone, The Ohio State Univ. (United States)
Antriksh Luthra, The Ohio State Univ. (United States)
Aruna Ravi, The Ohio State Univ. (United States)

Published in SPIE Proceedings Vol. 8957:
Plasmonics in Biology and Medicine XI
Tuan Vo-Dinh; Joseph R. Lakowicz, Editor(s)

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