Abstract
A lossless slab excited by an E-polarized two-dimensional (2-D) complex source point (CSP) beam is studied analytically. Such a source, unlike a Gaussian beam, satisfies exactly the Helmholtz equation and radiation condition, without paraxial approximation or formulation incompleteness. The guided-waves fields as well as the scattered fields in the regions above and below the slab are determined; in turn, the corresponding powers are directly calculated. Numerical results on the variations of these quantities with respect to the slab electrical thickness, the beam angle of incidence, the source aperture size and location are presented. Substantial power transfer from the finite directive source into each of the slab's guided waves is recorded especially in the case of near-grazing beam illumination. Such a finding may inspire further theoretical and experimental efforts towards numerous research directions like non-invasive sensing, wireless optical tagging and energy teleportation.
| Original language | English |
|---|---|
| Article number | 8705661 |
| Pages (from-to) | 5532-5543 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 67 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Aug 1 2019 |
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Keywords
- Complex beams
- guided waves
- scattering
- slabs
- waveguides
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
Excitation of guided waves on a lossless dielectric slab by an E-polarized complex source point beam. / Tsitsas, Nikolaos L.; Valagiannopoulos, Constantinos; Nosich, Alexander I.
In: IEEE Transactions on Antennas and Propagation, Vol. 67, No. 8, 8705661, 01.08.2019, p. 5532-5543.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Excitation of guided waves on a lossless dielectric slab by an E-polarized complex source point beam
AU - Tsitsas, Nikolaos L.
AU - Valagiannopoulos, Constantinos
AU - Nosich, Alexander I.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - A lossless slab excited by an E-polarized two-dimensional (2-D) complex source point (CSP) beam is studied analytically. Such a source, unlike a Gaussian beam, satisfies exactly the Helmholtz equation and radiation condition, without paraxial approximation or formulation incompleteness. The guided-waves fields as well as the scattered fields in the regions above and below the slab are determined; in turn, the corresponding powers are directly calculated. Numerical results on the variations of these quantities with respect to the slab electrical thickness, the beam angle of incidence, the source aperture size and location are presented. Substantial power transfer from the finite directive source into each of the slab's guided waves is recorded especially in the case of near-grazing beam illumination. Such a finding may inspire further theoretical and experimental efforts towards numerous research directions like non-invasive sensing, wireless optical tagging and energy teleportation.
AB - A lossless slab excited by an E-polarized two-dimensional (2-D) complex source point (CSP) beam is studied analytically. Such a source, unlike a Gaussian beam, satisfies exactly the Helmholtz equation and radiation condition, without paraxial approximation or formulation incompleteness. The guided-waves fields as well as the scattered fields in the regions above and below the slab are determined; in turn, the corresponding powers are directly calculated. Numerical results on the variations of these quantities with respect to the slab electrical thickness, the beam angle of incidence, the source aperture size and location are presented. Substantial power transfer from the finite directive source into each of the slab's guided waves is recorded especially in the case of near-grazing beam illumination. Such a finding may inspire further theoretical and experimental efforts towards numerous research directions like non-invasive sensing, wireless optical tagging and energy teleportation.
KW - Complex beams
KW - guided waves
KW - scattering
KW - slabs
KW - waveguides
UR - http://www.scopus.com/inward/record.url?scp=85070590903&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85070590903&partnerID=8YFLogxK
U2 - 10.1109/TAP.2019.2913803
DO - 10.1109/TAP.2019.2913803
M3 - Article
VL - 67
SP - 5532
EP - 5543
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 8
M1 - 8705661
ER -