Nanoparticle electrostriction acoustic resonance enhanced nonlinearity

Dao Xiang; Reuven Gordon

doi:10.1117/12.2235498

16 September 2016 Nanoparticle electrostriction acoustic resonance enhanced nonlinearity

Dao Xiang, Reuven Gordon

Proceedings Volume 9922, Optical Trapping and Optical Micromanipulation XIII; 992223 (2016) https://doi.org/10.1117/12.2235498
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Four-wave mixing can be used for all-optical wavelength conversion to manipulate communication channels in wavelength division multiplexing. Most wavelength conversion techniques rely on small intrinsic optical nonlinearities, leading to the low conversion efficiency and high energy usage while requiring a long light-matter interaction lengths. Here, we demonstrate a resonantly enhanced nonlinear process by introducing the vibrational excitation, where the electrostrictive force excites the acoustic modes of nanoparticles and induces a travelling periodic variation in refractive index of the sample. We show experimentally and theoretically strong nanoparticle resonances ranging from tens of GHz to THz, which can be utilized to achieve higher frequency conversion for fast all-optical data processing.

Conference Presentation

Citation Download Citation

Dao Xiang and Reuven Gordon "Nanoparticle electrostriction acoustic resonance enhanced nonlinearity", Proc. SPIE 9922, Optical Trapping and Optical Micromanipulation XIII, 992223 (16 September 2016); https://doi.org/10.1117/12.2235498

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