Impact of non-ideal shapes on high-contrast grating performance
Impact of non-ideal shapes on high-contrast grating performance
- Author(s): A. Tibaldi ; P. Debernardi ; R. Orta
- DOI: 10.1049/cp.2015.0140
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- Author(s): A. Tibaldi ; P. Debernardi ; R. Orta Source: 2015 Fotonica AEIT Italian Conference on Photonics Technologies, 2015 page ()
- Conference: 2015 Fotonica AEIT Italian Conference on Photonics Technologies
- DOI: 10.1049/cp.2015.0140
- ISBN: 978-1-78561-068-4
- Location: Turin, Italy
- Conference date: 6-8 May 2015
- Format: PDF
In this work the impact of the fabrication nonidealities on the reflection features of dielectric high-contrast gratings (HCGs) is discussed. The grating performance is quantified considering the plane-wave scattering problem. This is solved by means of a novel full-wave simulator based on the mortar element method. The flexibility of this scheme is exploited to obtain a realistic model of a HCG. Several analyses aimed at evaluating the sensitivity of the device to the geometry parameters that are mostly affected by the fabrication process are presented.
Inspec keywords: light reflection; light scattering; diffraction gratings; optical fabrication
Subjects: Optical fabrication, surface grinding; Gratings, echelles; Other optical system components
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