scholarly journals Epsilon-near-zero response and tunable perfect absorption in Weyl semimetals

2018 ◽  
Vol 98 (8) ◽  
Author(s):  
Klaus Halterman ◽  
Mohammad Alidoust ◽  
Alexander Zyuzin
Keyword(s):  
Perfect Absorption ◽  
Weyl Semimetals ◽  
Zero Response ◽  
Epsilon Near Zero

scholarly journals High-aspect-ratio mushroom-like silica nanopillars immersed in air: epsilon-near-zero metamaterials mediated by a phonon-polaritonic anisotropy

RSC Advances ◽  
2019 ◽  
Vol 9 (29) ◽  
pp. 16431-16438
Author(s):  
Kota Ito ◽  
Yuri Yamada ◽  
Atsushi Miura ◽  
Hideo Iizuka
Keyword(s):  
Block Copolymers ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Self Assembly ◽  
Infrared Range ◽  
Mid Infrared ◽  
Zero Response ◽  
Epsilon Near Zero

High-aspect-ratio mushroom-like silica nanopillars fabricated from self-assembly of block-copolymers exhibit a uniaxial epsilon-near-zero response in the mid-infrared range.

scholarly journals Conformable optical coatings with epsilon near zero response

APL Photonics ◽  
2019 ◽  
Vol 4 (5) ◽  
pp. 056107 ◽  
Author(s):  
Xin Li ◽  
Carlo Rizza ◽  
Sebastian Andreas Schulz ◽  
Alessandro Ciattoni ◽  
Andrea Di Falco
Keyword(s):  
Optical Coatings ◽  
Zero Response ◽  
Epsilon Near Zero

Tunable Epsilon-Near-Zero ITO Thin Films and Broadband Perfect Absorption in the Near-Infrared

2016 ◽  
Author(s):  
Junho Yoon ◽  
Tae Young Kim ◽  
Wonyoung Kim ◽  
Young Chul Jun ◽  
Chang Kwon Hwangbo
Keyword(s):  
Thin Films ◽  
Near Infrared ◽  
Perfect Absorption ◽  
Ito Thin Films ◽  
Epsilon Near Zero

scholarly journals An Electrically Tunable Dual-Wavelength Refractive Index Sensor Based on a Metagrating Structure Integrating Epsilon-Near-Zero Materials

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2301
Author(s):  
Zhenya Meng ◽  
Hailin Cao ◽  
Run Liu ◽  
Xiaodong Wu
Keyword(s):  
Refractive Index ◽  
Indium Tin Oxide ◽  
Figure Of Merit ◽  
Refractive Index Sensor ◽  
Perfect Absorption ◽  
Metal Insulator ◽  
Sensing Platform ◽  
Highly Sensitive ◽  
Metal Insulator Metal ◽  
Epsilon Near Zero

In this paper, a reconfigurable sensing platform based on an asymmetrical metal-insulator-metal stacked structure integrating an indium tin oxide (ITO) ultrathin film is proposed and investigated numerically. The epsilon-near-zero (ENZ) mode and antisymmetric mode can be resonantly excited, generating near-perfect absorption of over 99.7% at 1144 and 1404 nm, respectively. The absorptivity for the ENZ mode can be modulated from 90.2% to 98.0% by varying the ENZ wavelength of ITO by applying different voltages. To obtain a highly sensitive biosensor, we show that the proposed structure has a full-width at half-maximum (FWHM) of 8.65 nm and a figure-of-merit (FOM) of 24.7 with a sensitivity of 213.3 nm/RI (refractive index) for the glucose solution. Our proposed device has potential for developing tunable biosensors for real-time health monitoring.

scholarly journals Broadband Epsilon-Near-Zero Perfect Absorption in the Near-Infrared

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Junho Yoon ◽  
Ming Zhou ◽  
Md. Alamgir Badsha ◽  
Tae Young Kim ◽  
Young Chul Jun ◽  
...  
Keyword(s):  
Near Infrared ◽  
Perfect Absorption ◽  
Epsilon Near Zero
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