Giant Field fuctuations in dielectric metamaterial and Raman sensor

Авторы: Afanas'ev Konstantin N., Boginskaya Irina A., Budashov Igor A., Ivanov Andrey V., Kurochkin Ilya N., Lagarkov Andrey N., Ryzhikov Ilya A., Sarychev Andrey K.
Сборник: Proc. of SPIE
Том: 9544
Год издания: 2015
Издательство: SPIE
Местоположение издательства: Bellingham, WA, United States
Первая страница: 95441Y
Последняя страница: 95441Y6
DOI: 10.1117/12.2187134
Аннотация: New dielectric metamaterial based on the Bragg lter comprising ten dielectric bilayers was investigated. Each bilayer is the thin lms of silicone dioxide (SiO2) and another lm of zirconium dioxide (ZrO2). The surface of the multilayer lm is proled. It has a form of periodic system of rectangles separated by the open gaps. We use the computer simulation as well as analytical solution to nd the re ectance of the multilayer as a function of the wavelength and electromagnetic (em) eld distribution. The multilayer system reveals the enhancement of em elds at the surface. The considered Bragg lter was modied by Raman-active structure made of gold nanoparticles with chemically attached 3,3-thio-bis(6- nitrobenzoic acid) - (TNB). The high Surface Enhanced Raman Scattering (SERS) signal was detected.
Добавил в систему: Курочкин Илья Николаевич

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