Results 191 to 200 of about 849,085 (262)
Some of the next articles are maybe not open access.
IEEE Sensors Journal, 2019
Crack detection on metallic surfaces is important for the inspection of critical metallic devices. In this paper, a high-sensitivity near-field waveguide sensor loaded with a dielectric resonator for metallic crack detection is demonstrated.
Qingmin Wang +6 more
semanticscholar +1 more source
Crack detection on metallic surfaces is important for the inspection of critical metallic devices. In this paper, a high-sensitivity near-field waveguide sensor loaded with a dielectric resonator for metallic crack detection is demonstrated.
Qingmin Wang +6 more
semanticscholar +1 more source
Waveguides: characteristic modes of hollow rectangular dielectric waveguides
Applied Optics, 1976The field configurations and propagation constants of the normal modes of a hollow rectangular dielectric waveguide have been determined. In addition, the coupling coefficients of a Gaussian free-space mode into the normal modes of a square guide were calculated.
K D, Laakmann, W H, Steier
openaire +2 more sources
Efficient dielectric waveguide lasers
2016 18th International Conference on Transparent Optical Networks (ICTON), 2016In the past decade, rare-earth-doped and also transition-metal-doped dielectric waveguides have emerged as highly efficient laser devices. This paper reviews the results in Ti:Sapphire, polymer, sesquioxides, amorphous aluminium oxide, and potassium double tungstates that have recently been obtained in our research group, partly in collaboration with ...
openaire +1 more source
Compact Silicon Waveguide Mode Converter Employing Dielectric Metasurface Structure
Advanced Optical Materials, 2018Mode converters are key components in on‐chip mode‐division multiplexing systems. A compact silicon waveguide mode converter is proposed and demonstrated using all‐dielectric metasurface structure with a tilted subwavelength periodic perturbation.
Hongwei Wang +5 more
semanticscholar +1 more source
Time Dispersion in Dielectric Waveguides
Bell System Technical Journal, 1971In dielectric waveguides operating at optical frequencies, the primary cause of time dispersion of narrow pulses can be mode conversion. In this paper we argue that under certain assumptions a dielectric waveguide acts as a linear system in intensity.
openaire +1 more source
Photoluminescence of Dielectric Waveguides
2020This chapter overviews the ion-beam-implanted/irradiated dielectric waveguides in view of their applications in photoluminescence. The up-conversion and the near-infrared luminescence processes realized in ion-implanted/irradiated waveguides based on rare-earth-doped crystals and glasses are summarized in Sects. 7.1 and 7.2, respectively.
Feng Chen, Hiroshi Amekura, Yuechen Jia
openaire +1 more source
Composite Dielectric Waveguides
IEEE Transactions on Microwave Theory and Techniques, 1980Composite dielectric waveguides, or a class of dielectric waveguides made of a few dielectric materials, are described. A composite circular dielectric waveguide (CCDW) is treated with the the point-matching method. Computed values of the propagation constant of the CCDW are compared with those of the homogeneous circular dielectric waveguides (HCDW ...
E. Yamashita, K. Atsuki, R. Kuzuya
openaire +1 more source
DIELECTRIC-LOADED PLASMONIC WAVEGUIDE COMPONENTS
2011This chapter concerns modeling, design, and characterization of dielectric-loaded plasmonic waveguide components at telecommunication wavelengths, aimed at establishing a new technology platform for integratable nanophotonic components by combining photonics and electronics on the same chip.
Stær Holmgaard, Tbias +1 more
openaire +2 more sources
1987
In the preceding portions of this book, it has usually been assumed that the medium in which the phenomena take place is either free space or a material in which the energy losses can be neglected. It is now desired to investigate more closely what happens when the energy losses must be taken into account as well as to indicate the mechanism of these ...
openaire +1 more source
In the preceding portions of this book, it has usually been assumed that the medium in which the phenomena take place is either free space or a material in which the energy losses can be neglected. It is now desired to investigate more closely what happens when the energy losses must be taken into account as well as to indicate the mechanism of these ...
openaire +1 more source
Anisotropic dielectric waveguides
Journal of the Optical Society of America A, 1993The guided modes of anisotropic waveguides are known to be leaky when degenerate radiation modes of the orthogonal polarization exist. These losses can be quite large when the principal axes of the dielectric tensor are not aligned with the waveguide axis.
M. Lu, M. M. Fejer
openaire +1 more source