Controlling light propagation: a brief review
Damian P San-Roman-Alerigi
TL;DR
This paper reviews recent advances in controlling light propagation through negative refraction in semiconductors, highlighting experimental proof of negative refractive materials and discussing future directions based on transformation optics.
Contribution
It provides an overview of semiconductor refractive index theory, discusses the experimental demonstration of negative refraction in InGaAs/AlInAs, and explores future research based on transformation optics.
Findings
Experimental proof of negative refractive index in semiconductors
Interleaving InGaAs/AlInAs enables negative refraction
Future potential of transformation optics in material design
Abstract
Recent results by Hoffman et al. showed that it is possible to build a Negative Refractive Material (NIM) by interleaving InGaAs/AlInAs using current nanofabrication technologies. Their findings provide the first experimental proof of a negative refractive semiconductor long posited by transformation optics. In this paper an overview on semiconductor refractive index theory and negative refraction is presented, focusing on the results of Hoffman et al. and the future of the subject based on the theory of Transformation Optics and its importance to tailor materials electrodynamics properties.
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Taxonomy
TopicsPhotonic and Optical Devices · Photonic Crystals and Applications · Optical Coatings and Gratings