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ICOP & ICPET 2017, 23 - : 273-276 Back to browse issues page
Sensor based on plasmonic absorption of island metal films, varying refractive index of the surrounding environment
Mostafa Ghiasi * 1, Hossain Mehrzad , Ezeddin Mohajerani
Abstract:   (975 Views)

In this paper, the theoretical dependence of plasmonic spectral wavelength maximum of metal island vs the refractive index was examined and then plasmonic response of absorption spectra of silver island films (less than 100 nm in size) in both cases was discussed . The first mode using solvents such as dielectric media with different refractive index and a second mode using liquid crystal as a dielectric media was activated by applying electrical voltages low, the refractive index of the medium due to the molecular orientation of the crystals liquid changed and as a result of the absorption spectra of the island silver film in this case is moved as much as 22 nm. These experiments demonstrated that it can plasmonic structures feature nanometals / liquid crystals, used as active plasmonic sensors.

Keywords: island film, liquid crystal, plasmonic, solvent
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Type of Study: Research | Subject: Special
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ghiasi M, Mehrzad H, Mohajerani E. Sensor based on plasmonic absorption of island metal films, varying refractive index of the surrounding environment. ICOP & ICPET. 2017; 23 :273-276
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Volume 23 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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