By Igor Minin, Oleg Minin
In this e-book the authors current a number of examples of concepts used to beat the Abby diffraction restrict utilizing flat and 3D diffractive optical parts, photonic crystal lenses, photonic jets, and floor plasmon diffractive optics. The constructions mentioned can be utilized within the microwave and THz variety and in addition as scaled versions for optical frequencies. Such nano-optical microlenses might be built-in, for instance, into current semiconductor heterostructure structures for next-generation optoelectronic applications.
Chapter 1 considers flat diffractive lenses and cutting edge 3D radiating buildings together with a conical millimeter-wave Fresnel area plate (FZP) lens proposed for subwavelength focusing. In bankruptcy 2 the subwavelength focusing homes of diffractive photonic crystal lenses are thought of and it really is proven that a minimum of 3 sorts of photonic crystal lens are attainable.
With the purpose of accomplishing subwavelength focusing, in bankruptcy three another mechanism to provide photonic jets at Terahertz frequencies (terajets) utilizing 3D dielectric debris of arbitrary measurement (cuboids) is taken into account. A scheme to create a second “teraknife” utilizing dielectric rods is usually mentioned. within the ultimate bankruptcy the winning model of free-space 3D binary phase-reversal conical FZPs for operation on floor plasmon-polariton (SPP) waves demonstrates that analogues of Fourier diffractive parts should be built for in-plane SPP 3D optics.<
ing thought, modelling and test, this e-book should be a useful source for college kids and researchers engaged on nanophotonics and sub-wavelength focusing and imaging.