Resonance Splitting and Enhanced Optical Nonlinearities in ITO-based Epsilon-near-zero Metasurface with Cross-shaped Nanoantennas

Cong Liu,Kai Pang,Karapet Manukyan,Orad Reshef,Yiyu Zhou,Joel G. Patrow,Anuj K. Pennathur,Hao Song,Zhe Zhao,Runzhou Zhang,Fatemeh Alishahi,Ahmad Fallahpour,Yinwen Can,Ahmed Almaiman,Jahan M. Dawlaty,N. Apurv Chaitanya,Israel De Leon,M. Zahirul Alam,Robert W. Boyd,Moshe Tur,Alan E. Willner

Resonance Splitting and Enhanced Optical Nonlinearities in ITO-based Epsilon-near-zero Metasurface with Cross-shaped Nanoantennas

2019

We experimentally demonstrate a strong-coupling-induced resonance splitting in indium-tin-oxide (ITO) based epsilon-near-zero (ENZ) metasurface with cross-shaped nanoantennas. An ~11-nm blue shift of the carrier wavelength is observed for this metasurface under ~4-GW/cm2peak-power density. © 2019 The Author(s)

Keywords:

Resonance
Optoelectronics
Optics
Physics
Nonlinear optics
Scanning electron microscope
Blueshift
Wavelength

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