Absorption features of the zero frequency mode in an ultra-thin slab

The optical absorption in a homogeneous and non-dispersive slab is governed by the well-known Fabry-Perot resonances. We have found that below the lowest order Fabry-Perot resonance, there is another absorption maximum due to the zero frequency mode whose peak frequency is given not by the real part...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2014-12, Vol.105 (23)
Main Authors: Llorens, Jose M., Buencuerpo, Jerónimo, Postigo, Pablo Aitor
Format: Article
Language:English
Subjects:
Absorption
Applied physics
Irradiance
Peak frequency
Photovoltaic cells
Solar cells
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The optical absorption in a homogeneous and non-dispersive slab is governed by the well-known Fabry-Perot resonances. We have found that below the lowest order Fabry-Perot resonance, there is another absorption maximum due to the zero frequency mode whose peak frequency is given not by the real part of the complex resonance frequency, as it is the case for all other resonances, but by the imaginary part. This result is of interest, among other applications, for ultra thin solar cells, as tuning the zero frequency mode peak with the maximum of solar irradiance results in an increased efficiency.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4904027