Journal ArticleDOI
Wave Propagation and Attenuation in the General Class of Circular Hollow Waveguides with Uniform Curvature
TLDR
In this article, a general method has been developed to evaluate the propagation constant in oversized circular hollow-core waveguides characterized by a surface impedance and admittance due to a uniform bend.Abstract:
A general method has been developed to evaluate the propagation constant in oversized circular hollow-core waveguides characterized by a surface impedance and admittance due to a uniform bend. Completely different formulas are obtained for the attenuation constants of the modes in metallic or dielectric hollow waveguides from those obtained by Marcatili and Schmeltzer. Electric-field lines are also presented for several lower order modes in bent waveguides.read more
Citations
More filters
Journal ArticleDOI
Low-loss asymptotically single-mode propagation in large-core OmniGuide fibers.
Steven G. Johnson,Mihai Ibanescu,Maksim Skorobogatiy,Ori Weisberg,Torkel D. Engeness,Marin Soljacic,Steven A. Jacobs,John D. Joannopoulos,Yoel Fink +8 more
TL;DR: The light-propagation characteristics of OmniGuide fibers, which guide light by concentric multi-layer dielectric mirrors having the property of omnidirectional reflection, are presented, promising that the properties of silica fibers may be surpassed even when nominally poor materials are employed.
Journal ArticleDOI
A Review of IR Transmitting, Hollow Waveguides
TL;DR: A review of IR Transmitting, Hollow Waveguides is given in this paper, with a focus on the Hollow Waveguide and its applications in IR transmission and IR-IR communications.
Journal ArticleDOI
Design theory of dielectric-coated circular metallic waveguides for infrared transmission
TL;DR: In this paper, a circular metallic hollow waveguide with inner dielectric multilayers was designed with the emphasis on low-loss transmission of the HE 11 mode for the infrared.
Patent
Electromagnetic mode conversion in photonic crystal multimode waveguides
Ori Weisberg,Steven G. Johnson,John D. Joannopoulos,Michael Shapiro,Yoel Fink,Mihai Ibanescu +5 more
TL;DR: In this paper, a method for converting electromagnetic (EM) energy between guided modes of a photonic crystal waveguide (800) having a waveguide axis (810) was proposed.
Patent
High omnidirectional reflector
TL;DR: In this paper, a reflector is configured such that a range of frequencies exists defining a photonic band gap for electromagnetic energy incident along the perpendicular direction of the surface, and a frequency band gap is defined along a direction approximately 90° from the direction of said surface.
References
More filters
Journal ArticleDOI
Hollow metallic and dielectric waveguides for long distance optical transmission and lasers
TL;DR: In this paper, the field configurations and propagation constants of a hollow circular waveguide made of dielectric material or metal for application as an optical waveguide were determined and the increase of attenuation due to curvature of the axis was also determined.
Journal ArticleDOI
Cylindrical Dielectric Waveguide Modes
TL;DR: In this article, the propagation of cylindrical dielectric waveguide modes near cutoff and far from cutoff is considered and the relative amounts of Ez and Hz, and the transverse components of the field are determined for both sets of hybrid modes.
Journal ArticleDOI
Design theory of dielectric-coated circular metallic waveguides for infrared transmission
TL;DR: In this paper, a circular metallic hollow waveguide with inner dielectric multilayers was designed with the emphasis on low-loss transmission of the HE 11 mode for the infrared.
Journal ArticleDOI
Bending losses in hollow and dielectric tube leaky waveguides
TL;DR: It is shown that the dielectric tube leaky waveguide can be bent with a small bending radius compared with a metallic hollow waveguide when the guide material is appropriately selected.
Journal ArticleDOI
Fabrication of germanium‐coated nickel hollow waveguides for infrared transmission
TL;DR: In this paper, a hollow nickel waveguide with an inner germanium layer was fabricated by using a method based on rf sputtering, plating, and etching techniques.