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DESIGN, FABRICATION AND CHARACTERIZATION OF GUIDED
DESIGN, FABRICATION AND CHARACTERIZATION OF GUIDED

... coefficient of ~0.0012 at the 1550-nm wavelength as suitable for GMR transmission filter applications where a high refractive index and low extinction coefficient is desired. We design transmission filters for both transverse electric (TE) and transverse magnetic (TM) polarizations and experimentall ...
Optimally designed narrowband guided
Optimally designed narrowband guided

... narrowband, angular tolerant, polarization independent, doubly periodic resonant grating filter,” Opt. Lett. ...
DISPERSIVE BIREFRINGENT FILTERS Pochi YEH 1. Introduction
DISPERSIVE BIREFRINGENT FILTERS Pochi YEH 1. Introduction

... The variation of phase retardation I’ with respect to wavelength h (see eq. (3)) consists of two parts. First, the variation of r with respect to h can be due to the factor l/X in (1). This variation is represented by the second term -A@ in the parenthesis in (3). Second, the variation of r with res ...
Experimental demonstration of a narrowband, angular tolerant
Experimental demonstration of a narrowband, angular tolerant

Transmission resonances of electromagnetic wave through metallic
Transmission resonances of electromagnetic wave through metallic

... EM resonances established on the gratings and occurring to appropriate structural dimensions. Typically, two types of transmission resonances are identified in terms of the relevant wavelength λ, and their associated peaks are found to exhibit distinguishable spectral behaviors. One type of resonanc ...
IR3215521556
IR3215521556

... into the end layer that its refractive index is n s [12]. We assume that all layers are isotropic and nonmagnetic and have the same properties or characteristic along all axis and incidence angle is zero. We suppose that the thickness of the end layer is very larger than the previous layers so that ...
FILTERS AND BEAM SPLITTERS Several of the applications of
FILTERS AND BEAM SPLITTERS Several of the applications of

... optical communication, radar systems, holography, and general laser and electro-optical laboratory experiments. Filters can be classified into three categories, according to the way they’re used: ...
Reports for the two projects on Bisosensors have been combined
Reports for the two projects on Bisosensors have been combined

... a direction vertical to the structure itself. The beam would be produced without lenses, and only resorting to a planar integrated technology. Recent studies in photonic crystals or gratings have shown some beaming effects [1],[2], but these designs need a cavity under the periodic structure. Recent ...
1

Frequency selective surface

A frequency-selective surface (FSS) is any thin, repetitive surface (such as the screen on a microwave oven) designed to reflect, transmit or absorb electromagnetic fields based on frequency. In this sense, an FSS is a type of optical filter or metal-mesh optical filters in which the filtering is accomplished by virtue of the regular, periodic (usually metallic, but sometimes dielectric) pattern on the surface of the FSS. Frequency-selective surfaces have been most commonly used in the radio frequency region of the electromagnetic spectrum and find use in applications as diverse as the aforementioned microwave oven, antenna radomes and modern metamaterials. Sometimes frequency selective surfaces are referred to simply as periodic surfaces and are a 2-dimensional analog of the new periodic volumes known as photonic crystals.Many factors are involved in understanding the operation and application of frequency selective surfaces. These include analysis techniques, operating principles, design principles, manufacturing techniques and methods for integrating these structures into space, ground and airborne platforms.
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