Nanostructured and Subwavelength Waveguides: Fundamentals and Applications
Optical waveguides take a prominent role in photonics because they are able to trap and to transport light efficiently between a point of excitation and a point of detection. Moreover, waveguides allow the management of many of the fundamental properties of light and allow highly controlled interaction with other optical systems. For this reason waveguides are ubiquitous in telecommunications, sensing, spectroscopy, light sources, and high power light delivery. Nanostructured and subwavelength waveguides have additional advantages; they are able to confine light at a length scale below the diffraction limit and enhance or suppress light-matter interaction, as well as manage fundamental properties of light such as speed and direction of energy and phase propagation.
This book presents semi-analytical theory and practical applications of a large number of subwavelength and nanostructured optical waveguides and fibers operating in various regions of the electromagnetic spectrum including visible, near and mid-IR and THz. A large number of approximate, while highly precise analytical expressions are derived that describe various modal properties of the planar and circular isotropic, anisotropic, and metamaterial waveguides and fibers, as well as surface waves propagating on planar, and circular interfaces. A variety of naturally occurring and artificial materials are also considered such as dielectrics, metals, polar materials, anisotropic all-dielectric and metal-dielectric metamaterials.
Contents are organized around four major themes:
Nanostructured Subwavelengths and Waveguides is unique in that it collects in a single place an extensive range of analytical solutions which are derived in various limits for many practically important and popular waveguide and fiber geometries and materials.
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Hamiltonian Formulation of Maxwell Equations for
Slab Waveguides Made from Isotropic Dielectric Materials Example
Slab Waveguides Made from Anisotropic Dielectrics 75
Metamaterials in the Form of AllDielectric Planar Multilayers 81
Circular Fibres Made of Isotropic Materials 103
Made of Anisotropic Dielectrics 139
Circular Fibres Made of AllDielectric Metamaterials 167
Modes at the Interface between Two Materials 185
Lossless Metal Slab 211
Modes of a Metal Slot Waveguide 233
Planar MetalDielectric Metamaterials 247
Examples of Applications of MetalDielectric Metamaterials 253
Metamaterials in the Form of a Periodic Lattice of Inclusions 155
Semianalytical Methods of Solving Nonlinear Equations of Two Variables 301