focusing light with curved guided-mode resonance reflectors

Clicks: 153
ID: 241270
2011
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Abstract
Employing numerical simulations, we investigate the possibility of using curved guided-mode resonance (GMR) elements to focus light in reflection. We treat GMR reflectors with a parabolic shape and show that they are capable of focusing light effectively across wavelength bands that extend several hundred nanometers. The spatially infinite reflector model is simulated with a finite-element method, whereas the spatially finite reflector is treated with a finite-difference-time-domain method. The numerical results demonstrate that light intensity at the focal point is 8.6 dB stronger than the incident intensity when the GMR reflector’s size is on the order of 10 wavelengths. The results indicate potential applicability of wideband-focusing devices in electromagnetics and photonics using compact resonance elements.
Reference Key
magnusson2011micromachinesfocusing Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Robert Magnusson;Huiqing Zhai;Mingyu Lu
Journal chemistryopen
Year 2011
DOI
10.3390/mi2020150
URL
http://www.mdpi.com/2072-666X/2/2/150/
Keywords
guided waves leaky modesmechanical engineering and machinery

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