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

Volume

34

Issue

8

fYear

1998

fDate

8/1/1998 12:00:00 AM

Firstpage

1503

Lastpage

1507

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;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.704351

Filename

704351