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plasmonically induced absorption and transparency based on stub waveguide with nanodisk and fabry-perot resonator
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نویسنده
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zhang xing ,meng hongyun ,liu shuai ,ren xiaochao ,tan chunhua ,wei zhongchao ,huang xuguang ,li shuti
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منبع
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plasmonics - 2017 - دوره : 12 - شماره : 5 - صفحه:1289 -1296
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چکیده
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A novel metal-insulator-metal (mim) plasmonic waveguides structure, which is composed by stub waveguide with nanodisk and fabry-perot (f-p) resonator, has been proposed and numerically simulated with the finite-difference time-domain (fdtd). based on the three-level system, the extreme destructive interference between bright and dark resonators gives rise to the distinct plasmonically induced absorption (pia) response with the abnormal dispersion and novel fast-light feature. simultaneously, the dramatic double plasmonically induced transparency (pit) effect with slow-light characteristic can also be achieved in the system. the relationship between the transmission characteristics and the geometric parameters is studied in detail. by optimum design, the modulation depth of the pia transmission spectrum of 90 % with 0.145 and 0.14 ps fast-light effect can be gained simultaneously, and the peak transmissivity of the double pit system of 75.2 and 72.8 % with −0.38 ps slow light-effect can be achieved. the simulated transmission features are in agreement with the temporal-coupled mode theory (cmt). the characteristics of the system indicate an important potential application in integrated optical circuits such as slow-light and fast-light devices, high-performance filter, and optical storage.
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کلیدواژه
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surface plasmons ,plasmonically induced absorption ,electromagnetic optics ,slow light ,integrated optics devices
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آدرس
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south china normal university, school for information and optoelectronic science and engineering, guangdong provincial key laboratory of nanophotonic functional materials and devices, china, south china normal university, school for information and optoelectronic science and engineering, guangdong provincial key laboratory of nanophotonic functional materials and devices, china, south china normal university, school for information and optoelectronic science and engineering, guangdong provincial key laboratory of nanophotonic functional materials and devices, china, south china normal university, school for information and optoelectronic science and engineering, guangdong provincial key laboratory of nanophotonic functional materials and devices, china, south china normal university, school for information and optoelectronic science and engineering, guangdong provincial key laboratory of nanophotonic functional materials and devices, china, south china normal university, school for information and optoelectronic science and engineering, guangdong provincial key laboratory of nanophotonic functional materials and devices, china, south china normal university, school for information and optoelectronic science and engineering, guangdong provincial key laboratory of nanophotonic functional materials and devices, china, south china normal university, guangdong engineering research center of optoelectronic functional materials and devices, china
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Authors
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