Unlü Eren Seydi, Tok Rüştü Umut, Sendur Kürşat
Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul, Turkey.
Opt Express. 2011 Jan 17;19(2):1000-6. doi: 10.1364/OE.19.001000.
Six-particle and eight-particle common-gap plasmonic nanoantennas are utilized to obtain a broadband spectral response when illuminated with circular and elliptical polarization. Due to the insensitivity of dipole antennas to circular polarization, the resonant structures are brought together around the common-gap to expand the spectrum of the whole system. Their ability to focus light at different frequencies is demonstrated. The spectral response is manipulated by geometrical parameters and the strength of the spectral peaks is tailored through the ellipticity of the elliptically polarized light.
六粒子和八粒子共隙等离子体纳米天线用于在圆偏振和椭圆偏振光照射下获得宽带光谱响应。由于偶极天线对圆偏振不敏感，谐振结构围绕共隙聚集在一起以扩展整个系统的光谱。展示了它们在不同频率聚焦光的能力。光谱响应通过几何参数进行调控，并且光谱峰的强度通过椭圆偏振光的椭圆率进行调整。
