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Absorption control in pseudodisordered photonic-crystal thin film
- Source :
- Physical Review A 88, 5 (2013) 053835
- Publication Year :
- 2013
-
Abstract
- The positive effects of various perturbations introduced in a bidimensional photonic-crystal patterned membrane on its integrated absorption are investigated numerically and theoretically. Two phenomena responsible for the enhanced absorption observed are identified: an increase of the spectral density of modes, obtained thanks to folding mechanisms in the reciprocal lattice, and a better coupling of the modes with the incident light. By introducing a proper pseudodisordered pattern, we show that those two effects can be exploited so as to overcome the integrated absorption obtained for an optimized and single pattern unit cell photonic crystal.
- Subjects :
- Physics - Optics
Subjects
Details
- Database :
- arXiv
- Journal :
- Physical Review A 88, 5 (2013) 053835
- Publication Type :
- Report
- Accession number :
- edsarx.1311.5876
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevA.88.053835