Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
  • (Optica Publishing Group, 2015),
  • paper JSI_1_3

Dissipative, chaotic whispering galleries for light harvesting

Not Accessible

Your library or personal account may give you access

Abstract

Flat, thin-film solar cells cannot completely absorb the incoming sunlight within the double passage afforded by the back metallic mirror. Although significant interferometric improvement arises if an optimal set of thickness is chosen within the cell [1], additional light-harvesting design remains necessary to obtain an acceptable power conversion efficiency. To randomly structure the surface of the solar cell is an interesting theoretical possibility [2], but appears impractical for very thin cells. Instead, to cover the cell by a nearly randomizing structure [3] or by micro-lenses [4] is in principle easier to implement. In this work, we analyse a configuration proposed in [5], which consists of an array of silica fibres that are fused together, with their axes perpendicular to the ecliptic, see Fig. 1. Initial investigation was performed for fibre diameters ranging from 1 to 4 µm. Full-wave numerical simulations suggested that particular inclinations lead to the excitation of damped whispering gallery modes, giving rise to improved short circuit current at oblique incidence [5].

© 2015 IEEE

PDF Article
More Like This
Free Space Excitation of Chaotic Whispering Gallery Modes in a Deformed Glass Microsphere

Scott Lacey and Hailin Wang
QMG5 Quantum Electronics and Laser Science Conference (CLEO:FS) 2002

Chaotic whispering gallery lasers with high power and directional emission

Claire Gmachl, Federico Capasso, Deborah L. Sivco, Alfred Y. Cho, E.E. Narimanov, A. Douglas Stone, Jens U. Nöckel, and Jérôme Faist
CThD6 Conference on Lasers and Electro-Optics (CLEO:S&I) 1998

Whispering-Gallery Modes in Multimode Fibres: Experimental evidence and ray tracing model

Y. Padilla Michel, P. Steglich, S. Schrader, and M. Casalboni
CH_P_10 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2015

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved