Results 181 to 190 of about 849,085 (262)
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Tunable Liquid Crystal Filter in Nonradiative Dielectric Waveguide Technology at 60 GHz
IEEE Microwave and Wireless Components Letters, 2019This letter presents a continuously tunable nonradiative dielectric waveguide three-pole bandpass filter based on liquid crystal (LC) technology at 60 GHz. LC is used as tunable material to obtain a continuous tunable center frequency.
E. Polat +6 more
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Cylindrical Dielectric Waveguide Modes*
Journal of the Optical Society of America, 1961E Snitzer
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An All-Dielectric Coaxial Waveguide
Science, 2000An all-dielectric coaxial waveguide that can overcome problems of polarization rotation and pulse broadening in the transmission of optical light is presented here. It consists of a coaxial waveguiding region with a low index of refraction, bounded by two cylindrical, dielectric, multilayer, omnidirectional reflecting mirrors.
, Ibanescu +4 more
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Dispersion Minimization in Dielectric Waveguides
Applied Optics, 1973The effect of dielectric dispersion on pulse transmission through singly clad, cylindrical fibers is formulated in terms of the effective group index for the waveguide. It is shown that two different solutions are possible for designing guides that give a minimum of distortion due to dispersion. One solution uses fibers with low numerical aperture made
L, Smith, E, Snitzer
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A Novel Wavemeter For Dielectric Waveguide
27th European Microwave Conference and Exhibition, 1997This paper presents a novel wavemeter for use with dielectric waveguide. A movable piece of dielectric is placed parallel to a dielectric guide of identical cross section, forming a coupled structure. This causes varying amounts of energy to radiate from the far end of the movable dielectric.
P. R. Young, R. J. Collier
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SPIE Proceedings, 2007
Our recent results on planar and channel waveguide fabrication and lasers in the dielectric oxide materials Ti:sapphire and rare-earth-ion-doped potassium yttrium double tungstate (KYW) are reviewed. We have employed waveguide fabrication methods such as liquid phase epitaxy and reactive ion etching as well as ion beam implantation and femtosecond ...
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Our recent results on planar and channel waveguide fabrication and lasers in the dielectric oxide materials Ti:sapphire and rare-earth-ion-doped potassium yttrium double tungstate (KYW) are reviewed. We have employed waveguide fabrication methods such as liquid phase epitaxy and reactive ion etching as well as ion beam implantation and femtosecond ...
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Complex waves in a dielectric waveguide
Wave motion, 2018Existence of two families of symmetric complex waves in a dielectric waveguide of circular cross section is proved. Eigenvalues of the associated Sturm–Liouville problem on the half-line are determined.
Y. Shestopalov
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Elliptical Dielectric Waveguides
Journal of Applied Physics, 1962The problem of electromagnetic wave propagation along a dielectric cylinder of elliptical cross section is considered. Two infinite determinants representing the characteristic equations for the two types of hybrid waves (the HEmne, and the HEmn0 waves) are derived. It is found that there exists two dominant waves which possess zero cutoff frequencies.
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2021
The origin of guided-wave behavior is presented for the case of slabs and for thin films of dielectric materials. The discussion examines the origin of the guided wave using a classical optics approach and that of Maxwell’s equations, as well as the matching of fields at the interfaces of dielectric layers.
Richard Osgood, Xiang Meng
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The origin of guided-wave behavior is presented for the case of slabs and for thin films of dielectric materials. The discussion examines the origin of the guided wave using a classical optics approach and that of Maxwell’s equations, as well as the matching of fields at the interfaces of dielectric layers.
Richard Osgood, Xiang Meng
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Periodic dielectric waveguides
Optics Communications, 1972Abstract Dielectric waveguides having periodically corrugated surfaces are analyzed. The analysis shows that scattering occurs when the periodicity is greater than half the free space wavelength.Gap widths are calculated and dispersion diagrams are given. The results are applied to the design of band pass filters and phase-matching devices.
F.W. Dabby, A. Kestenbaum, U.C. Paek
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