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We present the design of a dielectric lens that is capable of deep-subwavelength focusing. The lens is composed of dielectric rings of complete planar geometry, thus can be easily fabricated using conventional micro-fabrication process.
We present the design of an integrated optical cavity where most of the optical field stands in the free space, readily accessible by atoms, molecules, quantum dots, etc. The geometry is planar, thus compatible with conventional fabrication process.
An optical cavity resonator of deep sub-wavelength size is demonstrated numerically by inserting a single layer of ldquofishnetrdquo structure of next refractive index into a Fabry-Perot cavity composed of two gold films.
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