Departmental Papers (MSE)

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Journal Article

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We present the calculated and measured energy-propagation constant (E-ß) dispersion of CdS nanowire waveguides at room temperature, where we include dispersive effects via the exciton-polariton model using physical parameters instead of a phenomenological equation. The experimental data match well with our model while the phenomenological equation fails to capture effects originating due to light-matter interaction in nanoscale cavities. Due to the excitonic-polaritonic effects, the group index of the guided light peaks close to the band edge, which can have important implications for optical switching and sensor applications.


Suggested Citation:
van Vugt, L.K., B. Piccione and R. Agarwal. (2010). Incorporating polaritonic effects in semiconductor nanowire waveguide dispersion. Applied Physics Letters. 97, 061115.

Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

The following article appeared in Applied Physics Letters and may be found at



Date Posted: 14 October 2010

This document has been peer reviewed.