The field distribution of a focused Gaussian beam reflected at 45° from a conducting plane and its effects in plasma-ignition experiments
- 1 February 1983
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 54 (2) , 519-523
- https://doi.org/10.1063/1.332104
Abstract
The electrical field distribution over the focal region of a Gaussian beam, incident at 45° and focused onto a perfectly conducting infinite plane, is calculated numerically by summing the plane waves in an angular spectrum representation. The beam is plane-polarized with the transverse electric field perpendicular to the plane of incidence. The configuration and parameters were chosen to agree with our experiments on plasma initiation near a metallic conductor by 35-GHz/8.6-mm microwave radiation. The results of the calculation show that the field distribution determines the ignition threshold, spatial location, and initial development of the microwave plasma at a metal surface.This publication has 4 references indexed in Scilit:
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- Electromagnetic Beam FieldsOptica Acta: International Journal of Optics, 1974
- Electromagnetic Field of a Gaussian Beam with an Elliptical Cross SectionJournal of the Optical Society of America, 1972
- Bandlimited angular spectrum approximation to a scalar dipole fieldOptics Communications, 1970