1 September 2015 Silicon "plasmonics" and optical field concentration at nanometer scale
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Abstract
Concentration of light into nanospots is greatly beneficial for heat assisted magnetic recording, biomedical imag- ing and sensing, nanolasing, etc. We propose novel, all dielectric near field transducers, which allow focusing light into a hot spot, much smaller than the wavelength without significant dissipative loss. Therefore, the detri- mental thermal effects in heat assisted recording can be significantly reduced opening new venue in the magnetic recording. In the proposed transducer electric field concentrates at the apex of the dielectric tip attached to the resonator. Thus the electric field excited in the dielectric resonator is further amplified and concentrated due to the dipole polarization of the tip.
Conference Presentation
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S. S. Vergeles, S. S. Vergeles, A. K. Sarychev, A. K. Sarychev, } "Silicon "plasmonics" and optical field concentration at nanometer scale", Proc. SPIE 9544, Metamaterials, Metadevices, and Metasystems 2015, 954415 (1 September 2015); doi: 10.1117/12.2187532; https://doi.org/10.1117/12.2187532
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