scholarly journals Boosting Second Harmonic Radiation from AlGaAs Nanoantennas with Epsilon-Near-Zero Materials

2018 ◽  
Vol 8 (11) ◽  
pp. 2212 ◽  
Author(s):  
Davide Rocco ◽  
Maria Vincenti ◽  
Costantino De Angelis

Enhancing the second harmonic conversion efficiency at the nanoscale is a critical challenge in nonlinear optics. Here we propose the use of epsilon-near-zero materials to boost the nonlinear radiation in the far field. Here, a comparison of the second harmonic behavior of a cylindrical AlGaAs nanoantenna placed over different semi-infinite layers is presented. In particular, we observed that the second harmonic generation is strongly enhanced and redirected by the simultaneous presence of a resonance at the fundamental wavelength and a low-permittivity condition in the substrate at the harmonic wavelength. Our results pave the way for a novel approach to enhance optical nonlinearities at the nanoscale.

2016 ◽  
Vol 94 (5) ◽  
Author(s):  
Xiaoyan Y. Z. Xiong ◽  
Li Jun Jiang ◽  
Wei E. I. Sha ◽  
Yat Hei Lo ◽  
Ming Fang ◽  
...  

2010 ◽  
Vol 18 (20) ◽  
pp. 20723 ◽  
Author(s):  
Chia-Lung Hsieh ◽  
Ye Pu ◽  
Rachel Grange ◽  
Grégoire Laporte ◽  
Demetri Psaltis

1971 ◽  
Vol 4 (12) ◽  
pp. 4274-4290 ◽  
Author(s):  
Joseph Rudnick ◽  
E. A. Stern

2010 ◽  
Vol 18 (12) ◽  
pp. 12283 ◽  
Author(s):  
Chia-Lung Hsieh ◽  
Ye Pu ◽  
Rachel Grange ◽  
Demetri Psaltis

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