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9 November 2016 Ultrathin gradient nonlinear metasurfaces with giant nonlinear response (Conference Presentation)
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Extending the ‘flat optics’ paradigm to the nonlinear optics faces important challenges, since, for any practical situation, we are required to simultaneously achieve sub-diffraction phase control and efficient frequency conversion in metasurfaces of sub-wavelength thickness. Here, we experimentally demonstrate giant nonlinear response and continuous phase control of the giant nonlinear response in metasurfaces based on plasmonic nanoresonators coupled to intersubband transitions in semiconductor multi-quantum wells. Over 0.075% of second-harmonic power conversion efficiency is achieved experimentally in a 400-nm-thick metasurface using 10 microns wavelength pump with 20 kW/cm2 intensity.
Conference Presentation
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Nishant Nookala, Jongwon Lee, Juan Sebastian Gomez-Diaz, Mykhailo Tymchenko, Frederic Demmerle, Gerhard Boehm, Markus-Christian Amann, Andrea Alu, and Mikhail A. Belkin "Ultrathin gradient nonlinear metasurfaces with giant nonlinear response (Conference Presentation)", Proc. SPIE 9918, Metamaterials, Metadevices, and Metasystems 2016, 99180E (9 November 2016);

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