The field enhancement and optical sensing in the surface photonic chrystal

Авторы: Ivanov A.V., Boginskaya I.A., Vaskin A.V., Afanas'ev K.N., Ryzhikov I.A., Lagarkov A.N., Sarychev A.K.
Сборник: Proceedings of the International Conference "Days on Diffraction 2014"
Год издания: 2015
Место издания: Saint Peterburg
Первая страница: 111
Последняя страница: 114
Аннотация: filter comprising ten dielectric bilayers was inves- tigated. Each bilayer is the thin films of silicone dioxide (SiO2) and another film of zirconium diox- ide (ZrO2). The surface of the multilayer film is profiled. It has a form of periodic system of rectan- gles separated by the open gaps. We use the com- puter simulation as well as analytical solution to find the reflectance of the multilayer as a function of the wavelength and electromagnetic (em) field distribu- tion. The multilayer system reveals the enhance- ment of em fields at the surface. The considered Bragg filter was modified 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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