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21 September 2017 Nonlinear frequency conversion with all-dielectric nanoantennas (Conference Presentation)
Dragomir N. Neshev, Sergey S. Kruk, Mohsen Rahmani, Maria del Rocio Camacho-Morales, Lei Wang, Lei Xu, Daria Smirnova, Alexander S. Solntsev, Yuri S. Kivshar
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Proceedings Volume 10343, Metamaterials, Metadevices, and Metasystems 2017; 103430H (2017) https://doi.org/10.1117/12.2273567
Event: SPIE Nanoscience + Engineering, 2017, San Diego, California, United States
Abstract
Dielectric nanoantennas and metasurfaces have proven to be able to manipulate the wavefront of incoming waves with high transmission efficiency. The important next question is: Can they enable enhanced interaction with the light to transform its colour or to be able to control one light beam with another? Here we show how a dielectric nano-resonator of subwavelength size can enable enhanced light matter interaction for efficient nonlinear frequency conversion. In particular, we show how AlGaAs or silicon nanoantennas can enhance second and third harmonic generation, respectively. Importantly, by controlling the size of the antennas, we can achieve control of directionality and polarisation state of the emission of harmonics. Our results open novel applications in ultra-thin light sources, light switches and modulators, ultra-fast displays, and other nonlinear optical metadevices based on low loss subwavelength dielectric resonant nanoparticles.
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Dragomir N. Neshev, Sergey S. Kruk, Mohsen Rahmani, Maria del Rocio Camacho-Morales, Lei Wang, Lei Xu, Daria Smirnova, Alexander S. Solntsev, and Yuri S. Kivshar "Nonlinear frequency conversion with all-dielectric nanoantennas (Conference Presentation)", Proc. SPIE 10343, Metamaterials, Metadevices, and Metasystems 2017, 103430H (21 September 2017); https://doi.org/10.1117/12.2273567
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KEYWORDS
Dielectrics
Harmonic generation
Nonlinear frequency conversion
Antennas
Beam controllers
Light
Light sources
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