By Igor Minin, Oleg Minin
In this publication the authors current numerous examples of suggestions used to beat the Abby diffraction restrict utilizing flat and 3D diffractive optical components, photonic crystal lenses, photonic jets, and floor plasmon diffractive optics. The constructions mentioned can be utilized within the microwave and THz variety and likewise as scaled types for optical frequencies. Such nano-optical microlenses will be built-in, for instance, into present semiconductor heterostructure structures for next-generation optoelectronic applications.
Chapter 1 considers flat diffractive lenses and cutting edge 3D radiating constructions together with a conical millimeter-wave Fresnel region 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 no less than 3 sorts of photonic crystal lens are attainable.
With the purpose of accomplishing subwavelength focusing, in bankruptcy three another mechanism to supply photonic jets at Terahertz frequencies (terajets) utilizing 3D dielectric debris of arbitrary dimension (cuboids) is taken into account. A scheme to create a second “teraknife” utilizing dielectric rods is usually mentioned. within the ultimate bankruptcy the profitable edition of free-space 3D binary phase-reversal conical FZPs for operation on floor plasmon-polariton (SPP) waves demonstrates that analogues of Fourier diffractive elements should be constructed for in-plane SPP 3D optics.<
ing idea, modelling and test, this booklet may be a priceless source for college students and researchers engaged on nanophotonics and sub-wavelength focusing and imaging.
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Additional info for Diffractive Optics and Nanophotonics: Resolution Below the Diffraction Limit
Tchelnokov, A. (2008). Photonic crystals. Towards nanoscale photonic devices. Berlin: Springer. 31. Ehrhardt, M. ), Wave propagation in periodic media. Analysis, numerical techniques and practical applications. Sharjah: Bentham Science Publishers. 32. , & Hu, X. (2014). Photonic crystals: principles and applications (366 p). New York: CRC Press. Chapter 4 Photonic Jets Formation by Non Spherical Axially and Spatially Asymmetric 3D Dielectric Particles Abstract In this Chapter we address a fundamental question: is a spherical-aided shape of dielectric particle to form a photonic jet unique or the spherical shape of particle may be extended to other form?
The principle possibility of generation and management of photonic jets parameters (including 3D), and (taking into account the scale effect) those of photonic nanojets, by choosing the particle shape free of axial spatial symmetry are shown. The obtained results may be used in some elements of nanophotonics of arbitrary-shape isolated particles. Photonic Jet Formation in Mirror Regime (Flat Focusing Mirror) Various practical problems require the creation of different types of photonic jets (photon stream) with its speciﬁc characteristics and properties.
Applied Physics Letters, 83, 4122. 1627474 5. Goldsmith, P. F. (1998). Quasioptical systems. New York, IEEE Press 6. Minin, I. , & Minin, O. V. (2014). Experimental veriﬁcation 3D subwavelength resolution beyond the diffraction limit with zone plate in millimeter wave. Microwave and Optical Technology Letters, 56(10), 2436–2439. 7. Minin, O. , & Minin, I. V. (2004). Diffractional optics of millimeter waves. Boston: IOP Publisher. 8. Minin, I. , Minin, O. V. (2008). Basic principles of Fresnel antenna arrays.