Plasmonic Grating Geometrics and Wavelength-dependent Focus Depth in Infrared Detectors

Author

Patrick R. Kennedy

Date of Award

3-22-2018

Document Type

Thesis

Degree Name

Master of Science in Electrical Engineering

Department

Department of Electrical and Computer Engineering

First Advisor

Tod Laurvick, PhD.

Abstract

The objective for this research is to determine a relationship between plasmonic grating geometries and the wavelength-dependent focus depth. This research is focused on enhancing the signal collected by infrared detectors by using a metal grating as a planar lens to focus light in the detecting region of the substrate. This can be used to maintain a thinner absorbing region and possibly to create multi-color imaging in a single pixel. Simulations demonstrate that the plasmonic lens is capable of creating a wavelength dependent focus spot.

AFIT Designator

AFIT-ENG-MS-18-M-038

DTIC Accession Number

AD1056156

Recommended Citation

Kennedy, Patrick R., "Plasmonic Grating Geometrics and Wavelength-dependent Focus Depth in Infrared Detectors" (2018). Theses and Dissertations. 1810.
https://scholar.afit.edu/etd/1810