Tailoring Correlations of the Local Density of States in Disordered Photonic Materials.
Francesco Riboli,Francesca Uccheddu,Giulio Monaco,Niccolò Caselli,Niccolò Caselli,Francesca Intonti,Massimo Gurioli,Sergey E. Skipetrov,Sergey E. Skipetrov +8 more
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TLDR
This work establishes a clear link between the microscopic structure of the material and the frequency correlation function of LDOS accessed by a near-field hyperspectral imaging technique and paves a way towards complete control of statistical properties of disordered photonic systems, allowing for designing materials with predefined correlations ofLDOS.Abstract:
We present experimental evidence for the different mechanisms driving the fluctuations of the local density of states (LDOS) in disordered photonic systems. We establish a clear link between the microscopic structure of the material and the frequency correlation function of LDOS accessed by a near-field hyperspectral imaging technique. We show, in particular, that short- and long-range frequency correlations of LDOS are controlled by different physical processes (multiple or single scattering processes, respectively) that can be-to some extent-manipulated independently. We also demonstrate that the single scattering contribution to LDOS fluctuations is sensitive to subwavelength features of the material and, in particular, to the correlation length of its dielectric function. Our work paves a way towards complete control of statistical properties of disordered photonic systems, allowing for designing materials with predefined correlations of LDOS.read more
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Nature of Photon
Ilgaitis Prūsis,Peteris Prūsis +1 more
TL;DR: In this article, the basic features of the photon, such as wave-particle duality, the relation between a continuous electromagnetic wave and a quanta, the interaction of electric and magnetic fields, space of photon, speed of light are explained.
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