Polarization-dependent optical absorption of graphene under total internal reflection
Authors:
- 14 January 2013
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 102 (2) , 021912
Abstract
It is shown that graphene exhibits strong polarization-dependent optical absorption under total internal reflection. Compared with universal absorbance of 2.3%, larger absorption was observed in monolayer, bilayer, and few-layer graphenes for transverse electric (TE) wave under total internal reflection. Our result indicates that reflectance ratio of transverse magnetic wave to TE waves can easily provide the information of number of graphene layers. Furthermore, the enhanced light-graphene coupling in a wide spectral range will be great potential in many applications such as photodetector, photovoltaics, and optical sensor.Keywords
Funding Information
- Program for New Century Excellent Talents in University (China) (NCET-09-0484)
- National Natural Science Foundation of China (11174159)
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