Optical microsensors based on photonic JETS terahertz, infrared or optical waves

摘要

The invention relates to devices for optical, infrared (IR) and submillimeter wavelengths, particularly to microsensors and devices of transmission lines of optical, infrared and terahertz waves and can be used for transmission (sewage) energy in various sensors NDT biomedical research with a spatial superresolution and a high energy density.; The object of the intended utility model is to provide an optical microsensor based photonic jets terahertz, infrared and optical waves, characterized by small transverse dimensions, the minimum thickness of the dielectric lens, comparable to the radiation wavelength in free space, ease of lens designs while reducing the total reflection loss of the radiation from the boundaries lenses.; The problem is solved in that in the optical microsensor based photonic jets terahertz, infrared or optical waves, comprising a radiation source and a set of dielectric lenses arranged along the direction of propagation of the invention, the lenses are spaced each other, are arranged end faces in relation to each other and are made in the form of a cylinder with a height d, which lies in the range from 0.85λ to 1.3λ, where λ the wavelength of radiation used in the surrounding area and made of a dielectric with a relative oeffitsientom refractive N / N ₀ (N ₀ the refractive index of the surrounding medium) within the range from 1.2 to 1.75, and the distance between the lenses is chosen in the range of L = 2d to 3.5d.; Thus cylinders material may have a different refractive index.; In this case, all of the cylinders may have the same size.; When the cylinders may have different diameters D, multiples of D = 2kλ, where k = 1, 2, 3, ....; In this part of the cylinder is inclined to the direction of wave propagation.; Moreover, all cylinders may be disposed on the substrate. 1 SP f ly-5 ZP f-ly, 6 Fig.