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Blue light absorption enhancement based on vertically channelling modes in nano-holes arrays
- Source :
- Applied Physics Letters 104, 5 (2014) 051119
- Publication Year :
- 2014
-
Abstract
- We investigate the specific optical regime occurring at short wavelengths, in the high absorption regime, in silicon thin-films patterned by periodically arranged nano-holes. Near-field scanning optical microscopy indicates that the incoming light is coupled to vertically channelling modes. Optical modelling and simulations show that the light, travelling inside the low-index regions, is absorbed at the direct vicinity of the nano-holes sidewalls. This channelling regime should be taken into account for light management in optoelectronic devices.
- Subjects :
- Physics - Optics
Subjects
Details
- Database :
- arXiv
- Journal :
- Applied Physics Letters 104, 5 (2014) 051119
- Publication Type :
- Report
- Accession number :
- edsarx.1402.1706
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1063/1.4864267