title: Theory of enhanced Raman scattering for circular stratified semiconductor cylinder.
abstract: Based on the electrodynamic theory, we have calculated the scattering fields of infinitely long dielectric nanocylinders with silver coating, and compared them with those of a pure silicon cylinder. The calculation result indicates that there exists an enhanced electric field in the silver-coated silicon nanocylinder and shows a great Raman enhancement factor (∼10(12)) as compared with bulk silicon. For a special area in the silver-coated silicon nanocylinder, the enhancement comes up to 4 × 10(13).
authors.affiliation: Department of Physics, Nankai University, Tianjin 300071, People's Republic of China.
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.forename: Min
authors.initials: M
authors.lastname: Feng
authors.forename: Xuewei
authors.initials: X
authors.lastname: Cao
authors.forename: Yufang
authors.initials: Y
authors.lastname: Wang
authors.forename: Guoxiang
authors.initials: G
authors.lastname: Lan