Nonlinear Dielectric Nanoantennas and Metasurfaces: Frequency Conversion and Wavefront Control

ACS Photonics ◽  
2021 ◽  
Author(s):  
Gustavo Grinblat
Keyword(s):  
Frequency Conversion ◽  
Wavefront Control ◽  
Nonlinear Dielectric

Analysis of Nonlinear Dielectric Characteristics of (Ba, Sr)TiO3 Thin Films and their Frequency Conversion Application

2008 ◽  
Vol 388 ◽  
pp. 183-186 ◽  
Author(s):  
Takashi Nishida ◽  
Takashi Nozaka ◽  
Takuya Tsuchikawa ◽  
Masahiro Echizen ◽  
Hiroaki Takeda ◽  
...  
Keyword(s):  
Thin Films ◽  
Equivalent Circuit ◽  
Frequency Conversion ◽  
Equivalent Circuit Model ◽  
Input Power ◽  
Frequency Multiplier ◽  
Nonlinear Dielectric ◽  
Frequency Converters ◽  
Nonlinear Properties ◽  
Nonlinear Devices

(Ba,Sr)TiO3 (BST) thin films have been investigated because of significant interest in device applications of their nonlinear dielectric properties such as in frequency tunable devices. We have investigated frequency conversion devices using BST films as new nonlinear devices, such as frequency mixers and multipliers. In this paper, we report the evaluation of nonlinear properties of various capacitors, and the experimental equation of the properties and the equivalent circuit model for frequency converters were established. A frequency multiplier using the BST film capacitor was fabricated, and obvious third harmonic signals could be observed. A conversion efficiency of -20 dB was obtained with a low input power of 0.25 W. Analysis of the converter with an equivalent circuit was also carried out, and the calculated output voltage agreed well with the measured result. The model is expected to be used for the analysis and improvement of conversion devices.

scholarly journals Nonlinear Dielectric Metasurfaces for Wavefront Control

2018 ◽  
Author(s):  
Lei Wang ◽  
Sergey Kruk ◽  
Kirill Koshelev ◽  
Ivan Kravchenko ◽  
Barry Luther-Davies ◽  
...  
Keyword(s):  
Wavefront Control ◽  
Nonlinear Dielectric

Photon-pair generation and sum-frequency conversion in nonlinear dielectric nanoresonators

2016 ◽  
Author(s):  
Alexander S. Solntsev ◽  
Luca Carletti ◽  
Lei Xu ◽  
Alexander N. Poddubny ◽  
Costantino De Angelis ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Photon Pair ◽  
Nonlinear Dielectric ◽  
Sum Frequency ◽  
Pair Generation

scholarly journals Convolution operations on time-domain digital coding metasurface for beam manipulations of harmonics

Nanophotonics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 2771-2781 ◽  
Author(s):  
Cheng Zhang ◽  
Jin Yang ◽  
Liu Xi Yang ◽  
Jun Chen Ke ◽  
Ming Zheng Chen ◽  
...  
Keyword(s):  
Time Domain ◽  
Electromagnetic Waves ◽  
Frequency Conversion ◽  
Convolution Theorem ◽  
Nonlinear Scattering ◽  
Wavefront Control ◽  
Single Beam ◽  
Harmonic Control ◽  
Beam Scattering ◽  
Efficient Control

AbstractTime-domain digital coding metasurfaces have been proposed recently to achieve efficient frequency conversion and harmonic control simultaneously; they show considerable potential for a broad range of electromagnetic applications such as wireless communications. However, achieving flexible and continuous harmonic wavefront control remains an urgent problem. To address this problem, we present Fourier operations on a time-domain digital coding metasurface and propose a principle of nonlinear scattering-pattern shift using a convolution theorem that facilitates the steering of scattering patterns of harmonics to arbitrarily predesigned directions. Introducing a time-delay gradient into a time-domain digital coding metasurface allows us to successfully deviate anomalous single-beam scattering in any direction, and thus, the corresponding formula for the calculation of the scattering angle can be derived. We expect this work to pave the way for controlling energy radiations of harmonics by combining a nonlinear convolution theorem with a time-domain digital coding metasurface, thereby achieving more efficient control of electromagnetic waves.

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