scholarly journals Electric Field Effect on the Reactivity of Solid State Materials: The Case of Single Layer Graphene

2020 ◽  
Vol 30 (13) ◽  
pp. 1909269 ◽  
Author(s):  
Min A. Kim ◽  
Nianxiang Qiu ◽  
Zhiting Li ◽  
Qing Huang ◽  
Zhifang Chai ◽  
...  
AIP Advances ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 115122 ◽  
Author(s):  
Aya Obinata ◽  
Takamasa Hirai ◽  
Yoshinori Kotani ◽  
Kentaro Toyoki ◽  
Tetsuya Nakamura ◽  
...  

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1552
Author(s):  
Yue Wang ◽  
Yu Wang ◽  
Guohui Yang ◽  
Qingyan Li ◽  
Yu Zhang ◽  
...  

Optical phased arrays (OPAs) are essential optical elements in applications that require the ability to manipulate the light-wavefront, such as beam focusing and light steering. To miniaturize the optical components, active metasurfaces, especially graphene metasurfaces, are used as competent alternatives. However, the metasurface cannot achieve a strong resonance effect, and the function of phase control only depends on the single-layer graphene in the mid-infrared band. Here we present a graphene-metal hybrid metasurface that can generate a specific phase or a continuous sweep in the range of a 275°-based single-layer graphene structure. A key feature of our design is that the phase adjustment mainly depends on the combination mechanism of resonance intensity and frequency modulation. An all-solid-state, electrically tunable, and reflective OPA is designed by applying the bias voltage to a different pixel metasurface. The simulation results show that the maximum deflection angle of the OPA can reach 42.716°, and the angular resolution can reach 0.62°. This design can be widely applied to mid-infrared imaging, optical sensing, and optical communication systems.


2019 ◽  
Vol 1 (12) ◽  
pp. 2626-2636 ◽  
Author(s):  
Nikolaos Mavredakis ◽  
Wei Wei ◽  
Emiliano Pallecchi ◽  
Dominique Vignaud ◽  
Henri Happy ◽  
...  

Nanoscale ◽  
2018 ◽  
Vol 10 (31) ◽  
pp. 14947-14956 ◽  
Author(s):  
Nikolaos Mavredakis ◽  
Ramon Garcia Cortadella ◽  
Andrea Bonaccini Calia ◽  
Jose A. Garrido ◽  
David Jiménez

This letter investigates the bias-dependent low frequency noise of single layer graphene field-effect transistors.


Sign in / Sign up

Export Citation Format

Share Document