Open AccessSurface plasmon polariton modulator based on electro-optic polymer
Author(s) -
Jianjun Chen,
Zhi Li,
Jiasen Zhang,
Qihuang Gong
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.5893
Subject(s) - materials science , interferometry , optics , surface plasmon polariton , modulation (music) , optical modulator , optoelectronics , plasmon , surface plasmon , electric field , electro optic modulator , voltage , physics , phase modulation , quantum mechanics , acoustics , phase noise
A simple, high efficiency and mini-sized surface plasmon polariton (SPP) modulator based on electro-optic polymer is proposed. The modulator is constructed by metallic stripes of Mach-Zender (M-Z) interferometric structure and with electro-optic polymer surrounding the stripes. The reflectivity index of the electro-optic polymer is modulated when the modulating voltage is applied to the two arms of the M-Z interferometer. Through the M-Z interferometer, the modulation of the reflectivity index can be transferred into the modulation of the SPP intensity. By calculating the electric field near the metallic stripes and taking the distribution of SPP field into account, the working principle of the SPP modulator is demonstrated in detail and the half-wave modulating voltage is evaluated as 2.8V.