Surface plasmon propagation in microscale metal stripes
Surface plasmon propagation in microscale metal stripes
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DOI：
10.1063/1.1380236
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发表时间：
2001-07-02
影响因子：
4
通讯作者：
Weeber, JC
中科院分区：
文献类型：
--
作者：
Lamprecht, B;Krenn, JR;Weeber, JC
针对光导向纳米光学小型化的根本问题，我们在微米范围内实验研究了有限宽度的银和金薄膜中的表面等离子激元传输。表面等离子体的空间受限激发是通过棱镜耦合装置实现的，该棱镜耦合装置包括一个不透明的铝屏，用于将激发和传播(测量)区域明显分开。通过用常规光学显微镜检测由于表面等离子激元散射引起的杂散光来测量作为薄膜宽度函数的表面等离子体激元传播长度。(C)2001年美国物理研究所。
Addressing the fundamental question of miniaturization of light guiding and routing towards nanoscale optics, we study experimentally surface plasmon propagation in silver and gold thin films of finite widths in the micrometer range. Spatially confined excitation of surface plasmons is realized by a prism coupling arrangement involving an opaque aluminum screen for a distinct separation of excitation and propagation (measurement) region. The surface plasmon propagation length as a function of film widths is measured by detecting stray light due to surface plasmon scattering with a conventional optical microscope. (C) 2001 American Institute of Physics.