Cylinder light concentrator and absorber: theoretical description

Abstract

We present a detailed theoretical description of a broadband omnidirectional light concentrator and absorber with cylinder geometry. The proposed optical "trap" captures nearly all the incident light within its geometric cross-section, leading to a broad range of possible applications from solar energy harvesting to thermal light emitters and optoelectronic components. We have demonstrated that an approximate lamellar black-hole with a moderate number of homogeneous layers, while giving the desired ray-optical performance, can provide absorption efficiencies comparable to those of ideal devices with a smooth gradient in index.

Comments

Alexander V. Kildishev, Ludmila J. Prokopeva, and Evgenii E. Narimanov. Cylinder light concentrator and absorber: theoretical description. Optics Express Vol. 18, Issue 16, pp. 16646-16662 (2010). https://doi.org/10.1364/OE.18.016646

Keywords

METAMATERIALS; REFRACTION

DOI

10.1364/OE.18.016646

Citation

Optics Express Vol. 18, Issue 16, pp. 16646-16662 (2010)

Date of this Version

8-2010

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