Metal-Multilayer-Dielectric Structure for Enhancement of s- and p-Polarized Evanescent Waves

Abstract

We propose a structure based on combination of multilayer stack of dielectric films and thin metal layer for excitation and enhancement of both s- and p-polarized evanescent waves. It is shown that two different mechanisms of evanescent wave excitation may occur at the same angle of light beam incidence on the structure. Application for evanescent wave polarization holographic recording with the help of this structure is discussed.

[INVITED] Nanofabrication of phase-shifted Bragg gratings on the end facet of multimode fiber towards development of optical filters and sensors

“…The deposition of a stack of high and low refractive index materials on different substrates, such as silicon wafers, quartz, BK7 glass, or optical fiber, has been explored in several publications with the aim of developing optical filters and sensors [1][2][3][4][5][6][7][8][9][10].…”

“…On the one hand, optical fiber is immune against electromagnetic interferences, presents small diameter and high bandwidth, and is capable of multiplexing several signals. On the other hand, though some authors consider the deposition of high and low refractive index layers as a multilayer stack [1,[3][4][6][7][8] or a micrograting [2], others use more subtle terms such as Bragg stacks [5], or simply Bragg gratings [10]. This last term is more adequate in the work presented here because focus is centered on the monitorization of bands generated in the reflected spectrum according to the Bragg-Snell equation for normal incidence [5]:…”

Using Metal-Multilayer-Dielectric Structure to Increase Sensitivity of Surface Plasmon Resonance Sensor

“…In this work, we consider a modified type of the plasmonic waveguide sensor [ 9 – 11 ] having metal-multilayer-dielectric (MMD) structure [ 12 ] which supports both hybrid plasmonic TM modes [ 9 ] and conventional waveguide transverse electric (TE) modes. The MMD structure is specially designed to further decrease the propagation losses and enhance the evanescent field for the TE mode, thereby increasing the resolution and sensitivity of the sensor.…”