Lorentz reciprocity refers to a fundamental symmetry relation that governs several physical systems. In this talk, we will discuss our recent theoretical, design, experimental, and commercialization efforts in the area of non-reciprocal photonics, using temporal modulation of metamaterial elements to realize isolation for guided waves in nanophotonic systems and radio-frequency circuits, and for propagating waves in free-space, as well as to break the symmetry between emission and absorption in optical and radio-frequency open systems.
Andrea Alù, "Breaking reciprocity in nanophotonics: optomechanical interactions
(Conference Presentation)," Proc. SPIE 9918, Metamaterials, Metadevices, and Metasystems 2016, 991816 (Presented at SPIE Nanoscience + Engineering: August 30, 2016; Published: 9 November 2016); https://doi.org/10.1117/12.2238400.5159519568001.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon