Firby C J, Elezzabi A Y
Opt Lett. 2016 Feb 1;41(3):563-6. doi: 10.1364/OL.41.000563.
We propose a long-range magnetoplasmonic waveguide structure, based on cerium-substituted yttrium iron garnets, that is capable of achieving a useful π/2 nonreciprocal phase shift within one propagation length. Incorporating this plasmonic geometry into a Mach-Zehnder interferometer allows for the implementation of an efficient, integrable isolator scheme with an insertion loss of 2.51 dB and an extinction ratio of 22.82 dB. With a small footprint of 6.4×10(-3) mm(2) and nanoscale waveguide dimensions, we envision this device to be a key building block in the development of nanoplasmonic integrated circuitry.
我们提出了一种基于铈取代钇铁石榴石的远程磁等离子体波导结构，该结构能够在一个传播长度内实现有用的π/2非互易相移。将这种等离子体几何结构集成到马赫-曾德尔干涉仪中，可实现一种高效、可集成的隔离器方案，其插入损耗为2.51 dB，消光比为22.82 dB。由于该器件占地面积小，仅为6.4×10(-3) mm(2) ，且波导尺寸为纳米级，我们设想该器件将成为纳米等离子体集成电路发展中的关键构建模块。
