Enhanced third-harmonic generation in silicon nanoparticles driven by magnetic response.

We observe enhanced third-harmonic generation from silicon nanodisks exhibiting both electric and magnetic dipolar resonances. Experimental characterization of the nonlinear optical response through third-harmonic microscopy and spectroscopy reveals that the third-harmonic generation is significantly enhanced in the vicinity of the magnetic dipole resonances. The field localization at the magnetic resonance results in two orders of magnitude enhancement of the harmonic intensity with respect to unstructured bulk silicon with the conversion efficiency limited only by the two-photon absorption in the substrate.

[1]  W. K. Burns,et al.  Third-Harmonic Generation in Absorbing Media of Cubic or Isotropic Symmetry , 1971 .

[2]  Zhaoning Yu,et al.  Nonlinear optical spectroscopy of photonic metamaterials , 2007, 2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science.

[3]  Stefan Linden,et al.  Experiments on second- and third-harmonic generation from magnetic metamaterials. , 2008, Optics express.

[4]  R. Fox,et al.  Classical Electrodynamics, 3rd ed. , 1999 .

[5]  David R. Smith,et al.  Nonlinear interference and unidirectional wave mixing in metamaterials. , 2013, Physical review letters.

[6]  Harald Giessen,et al.  Quantitative modeling of the third harmonic emission spectrum of plasmonic nanoantennas. , 2012, Nano letters.

[7]  A. A. Fedyanin,et al.  Contribution of the magnetic resonance to the third harmonic generation from a fishnet metamaterial , 2012 .

[8]  Harald Giessen,et al.  Doubling the efficiency of third harmonic generation by positioning ITO nanocrystals into the hot-spot of plasmonic gap-antennas. , 2014, Nano letters.

[9]  Realization of tellurium-based all dielectric optical metamaterials using a multi-cycle deposition-etch process , 2013 .

[10]  R. Pease,et al.  Subbandgap laser-induced single event effects: carrier generation via two-photon absorption , 2002 .

[11]  B. Chichkov,et al.  Demonstration of magnetic dipole resonances of dielectric nanospheres in the visible region. , 2012, Nano letters.

[12]  D. Moss,et al.  Green light emission in silicon through slow-light enhanced third-harmonic generation in photonic-crystal waveguides , 2009 .

[13]  P. Grahn,et al.  Electromagnetic multipole theory for optical nanomaterials , 2012, 1206.0530.

[14]  Yuri S. Kivshar,et al.  Circular dichroism of four-wave mixing in nonlinear metamaterials , 2013 .

[15]  Mohsen Rahmani,et al.  University of Birmingham Third-harmonic-upconversion enhancement from a single semiconductor nanoparticle coupled to a plasmonic antenna , 2016 .

[16]  Michel Orrit,et al.  Third-harmonic generation from single gold nanoparticles. , 2005, Nano letters.

[17]  Chi‐Kuang Sun,et al.  Measuring plasmon-resonance enhanced third-harmonic χ(3) of Ag nanoparticles , 2006 .

[18]  Andrey E. Miroshnichenko,et al.  Magnetic light , 2012, Scientific reports.

[19]  Harald Giessen,et al.  Third Harmonic Mechanism in Complex Plasmonic Fano Structures , 2014, ACS photonics.

[20]  D. S. Bradshaw,et al.  Photonics , 2023, 2023 International Conference on Electrical Engineering and Photonics (EExPolytech).

[21]  Philippe M. Fauchet,et al.  Dispersion of silicon nonlinearities in the near infrared region , 2007 .

[22]  I. Brener,et al.  Tailoring directional scattering through magnetic and electric resonances in subwavelength silicon nanodisks. , 2013, ACS nano.