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Optical Engineering • Open Access

Response to “Comment on the paper ‘Electromagnetic modeling of ellipsoidal nanoparticles for sensing applications’”
Author(s): Luigi La Spada; Renato Iovine; Lucio Vegni

Paper Abstract

The authors respond to the comments by Mackay and Lakhtakia. First of all, we would like to thank Mackay and Lakhtakia1 who have carefully read our paper and for their valuable comments on our manuscript. We agree that the polarizability is a dyadic. For our aims (analytical models, full-wave simulations, and sensitivity analysis), we have assumed the impinging electromagnetic field as a plane wave having the electric field E parallel to the nanoparticle principal axis (x -axis as depicted in the Fig. 1 of the paper). In this case, Eq. (1) and the following equations refer only to scalar component x ^ x ^ of the dyadic polarizability α − − − − (sufficient to evaluate the nanoparticle response under the aforementioned excitation condition). We have to point out that for sensing applications the analyzed polarization is crucial in order to obtain the best sensitivity performances.

Paper Details

Date Published: 15 July 2013
PDF: 2 pages
Opt. Eng. 52(7) 079702 doi: 10.1117/1.OE.52.7.079702
Published in: Optical Engineering Volume 52, Issue 7
Show Author Affiliations
Luigi La Spada, Univ. degli Studi di Roma Tre (Italy)
Renato Iovine, Univ. degli Studi di Roma Tre (Italy)
Lucio Vegni, Univ. degli Studi di Roma Tre (Italy)

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