Nanolayer parametric instability in near-field optics

被引：2
|
作者：
Hsu, JY [1 ]
机构：
[1] Natl Ctr High Performance Comp, Hsinchu, Taiwan
[2] Natl Tsing Hua Univ, Dept Engn & Syst Sci, Hsinchu, Taiwan
来源：
OPTICS LETTERS | 2004年 / 29卷 / 18期
关键词：
D O I：
10.1364/OL.29.002157
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Parametric decay of electromagnetic waves into two Langmuir oscillations near the quarter critical density is suggested as being attributable to an enhanced electric field and to surface-enhanced Raman scattering in near-field optics. A nanolayer of silver aggregates localizes the wave in the evanescent region to a one-wavelength span and results in a wave-number mismatch as well as in a reduced growth rate. The fastest-growing mode has a growth rate that scales with the square root of the nanolayer's thickness. (C) 2004 Optical Society of America.
引用
收藏
页码：2157 / 2159
页数：3
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