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Subwavelength focusing of all-dielectric surface waves

Autor: Kim, M. -S., Lahijani, B. Vosoughi, Descharmes, N., Straubel, J., Negredo, F., Rockstuhl, C., Häyrinen, M., Kuittinen, M., Roussey, M., Herzig, H. P.

Micro-sized spheres can focus light into subwavelength spatial domains: a phenomena called photonic nanojet. Even though well studied in three-dimensional (3D) configurations, only a few attempts have been reported to observe similar phenomena in two

Externí odkaz: http://arxiv.org/abs/1703.10809

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Limit of light coupling strength in solar cells

Autor: Naqavi, A., Haug, F. -J., Ballif, C., Scharf, T., Herzig, H. P.

Publikováno v: Appl. Phys. Lett. 102, 131113 (2013)

We introduce a limit for the strength of coupling light into the modes of solar cells. This limit depends on both a cell's thickness and its modal properties. For a cell with refractive index n and thickness d, we obtain a maximal coupling rate of 2c

Externí odkaz: http://arxiv.org/abs/1303.2833

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