Title :
Diffraction-limited laser excitation of a surface plasma wave and its scattering on a rippled metallic surface
Author :
Liu, Chuan Sheng ; Tripathi, Vipin K.
Author_Institution :
Inst. for Plasma Res., Maryland Univ., College Park, MD, USA
fDate :
8/1/1998 12:00:00 AM
Abstract :
A theory of excitation, reflection, and scattering of a surface plasma wave (SPW) over a metallic surface is presented by modeling a localized surface ripple by an electron density perturbation. The level of a laser excited SPW is significantly lowered by the diffraction effects. When an SPW is incident on a bump or a slot, it undergoes specular reflection. It also undergoes elastic scattering when encountering a surface defect, as observed in recent experiments
Keywords :
electron density; laser beam effects; light diffraction; perturbation theory; surface electromagnetic waves; surface plasmons; surface scattering; bump; diffraction effects; diffraction-limited laser excitation; elastic scattering; electron density perturbation; laser excited SPW; localized surface ripple; rippled metallic surface scattering; slot; specular reflection; surface defect; surface plasma wave; Diffraction; Electrons; Laser excitation; Laser modes; Laser theory; Optical reflection; Plasma waves; Scattering; Surface emitting lasers; Surface waves;
Journal_Title :
Quantum Electronics, IEEE Journal of
