Phase-sensitive near field Investigation of Bloch surface wave propagation in curved waveguides
Phase-sensitive near field Investigation of Bloch surface wave propagation in curved waveguides
复制标题
弯曲波导中布洛赫表面波传播的相敏近场研究
DOI：
10.2971/jeos.2014.14049
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发表时间：
2014-10
影响因子：
1.5
通讯作者：
H. P. Herzig
中科院分区：
文献类型：
--
作者：
Lin Sun(孙琳);Jia Wang(王佳);Qiaofeng Tan(谭峭峰);H. P. Herzig
Bloch surface waves (BSWs) are electromagnetic surface waves excited in the band gap of a one dimensional dielectric photonic crystal. They are confined at the interface of two media. Due to the use of dielectric material, the losses are very low, which allows the propagation of BSWs over long distances. Another advantage is the possibility of operating within a broad range of wavelengths. In this paper, we study and demonstrate the propagation of light in ultra-thin curved polymer waveguides having different radii fabricated on a BSWs sustaining multilayer. A phase-sensitive multi-parameter near-field optical measurement system (MH-SNOM), which combines heterodyne interferometry and SNOM, is used for the experimental characterization. Propagating properties, bending loss, mode conversion and admixture are investigated. We experimentally show that when light goes through the curved part of the waveguide, energy can be converted into different modes. The superposition and interference of different modes lead to a periodically alternating bright and dark beat phenomenon along the propagation direction. Experimental optical phase and amplitude distributions in the curved waveguide show a very good agreement with simulation results.
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影响因子：
--
作者：
D. Marcuse
通讯作者：
D. Marcuse
DOI：
10.1142/9781848161351_0001
发表时间：
2003-03
期刊：
--
影响因子：
--
作者：
D. Courjon
通讯作者：
D. Courjon
影响因子：
10.8
作者：
Descrovi, Emiliano;Sfez, Tristan;Giorgis, Fabrizio
通讯作者：
Giorgis, Fabrizio
DOI：
10.1017/cbo9781139207249.009
发表时间：
2012
期刊：
--
影响因子：
--
作者：
W. Marsden
通讯作者：
W. Marsden
影响因子：
1.9
作者：
S. Kawakami
通讯作者：
S. Kawakami