Surface Plasmon Polariton Mach-Zehnder Interferometer and Oscillation Fringes
A. Drezet, A. Hohenau, A. L. Stepanov, H. Ditlbacher, B. Steinberger,, F. R. Aussenegg, A. Leitner, and J. R. Krenn
TL;DR
This paper experimentally analyzes a surface plasmon polariton Mach-Zehnder interferometer with elliptical Bragg mirrors, observing high-visibility fringes and characterizing the beam splitter's properties.
Contribution
It provides the first detailed experimental characterization of SPP interferometry using elliptical Bragg mirrors, including reflection and transmission coefficients.
Findings
Oscillation fringes with unit visibility observed at interferometer exits
Quantitative measurements of SPP reflection and transmission coefficients
Demonstration of effective SPP beam splitting and phase control
Abstract
We present a quantitative experimental analysis of a surface plasmon polariton (SPP) interferometer relying on elliptical Bragg mirrors. By using a leakage radiation microscope we observe oscillation fringes with unit visibility at the two interferometer exits. We study the properties of the SPP beam splitter and determine experimentally both the norm and phase of the SPP reflection and transmission coefficients.
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Taxonomy
TopicsPhotonic and Optical Devices · Plasmonic and Surface Plasmon Research · Advanced Fiber Optic Sensors