scholarly journals Tunable polarization-independent dual-band coherent perfect absorber based on metal-graphene nanoring structure

2018 ◽  
Vol 26 (17) ◽  
pp. 21768 ◽  
Author(s):  
Jiangnan Si ◽  
Zhewei Dong ◽  
Xuanyi Yu ◽  
Xiaoxu Deng
Keyword(s):  
Dual Band ◽  
Perfect Absorber ◽  
Polarization Independent ◽  
Coherent Perfect Absorber

Dual-band metamaterial perfect absorber with nearly polarization-independent

2016 ◽  
Vol 123 (1) ◽  
Author(s):  
Osman Ayop ◽  
Mohamad Kamal A. Rahim ◽  
Noor Asniza Murad ◽  
Noor Asmawati Samsuri ◽  
Farid Zubir ◽  
...  
Keyword(s):  
Dual Band ◽  
Perfect Absorber ◽  
Polarization Independent ◽  
Metamaterial Perfect Absorber

scholarly journals A Tunable Dual-Band and Polarization-Insensitive Coherent Perfect Absorber Based on Double-Layers Graphene Hybrid Waveguide

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Xin Luo ◽  
Zi-Qiang Cheng ◽  
Xiang Zhai ◽  
Zhi-Min Liu ◽  
Si-Qi Li ◽  
...  
Keyword(s):  
Wide Spectrum ◽  
Dual Band ◽  
Double Layers ◽  
Monolayer Graphene ◽  
Perfect Absorber ◽  
Infrared Band ◽  
Perfect Absorption ◽  
Mid Infrared ◽  
Polarization Insensitive ◽  
Coherent Perfect Absorber

Abstract A suspended monolayer graphene has only about 2.3% absorption rate in visible and infrared band, which limits its optoelectronic applications. To significantly increase graphene’s absorption efficiency, a tunable dual-band and polarization-insensitive coherent perfect absorber (CPA) is proposed in the mid-infrared regime, which contains the silicon array coupled in double-layers graphene waveguide. Based on the FDTD methods, dual-band perfect absorption peaks are achieved in 9611 nm and 9924 nm, respectively. Moreover, due to its center symmetric feature, the proposed absorber also demonstrates polarization-insensitive. Meanwhile, the coherent absorption peaks can be all-optically modulated by altering the relative phase between two reverse incident lights. Furthermore, by manipulating the Fermi energies of two graphene layers, two coherent absorption peaks can move over a wide spectrum range, and our designed CPA can also be changed from dual-band CPA to narrowband CPA. Thus, our results can find some potential applications in the field of developing nanophotonic devices with excellent performance working at the mid-infrared regime.

scholarly journals Polarization-independent dual-band infrared perfect absorber based on a metal-dielectric-metal elliptical nanodisk array

2011 ◽  
Vol 19 (16) ◽  
pp. 15221 ◽  
Author(s):  
Bingxin Zhang ◽  
Yanhui Zhao ◽  
Qingzhen Hao ◽  
Brian Kiraly ◽  
Iam-Choon Khoo ◽  
...  
Keyword(s):  
Dual Band ◽  
Perfect Absorber ◽  
Polarization Independent

scholarly journals Tunable polarization-independent coherent perfect absorber based on a metal-graphene nanostructure

2017 ◽  
Vol 25 (26) ◽  
pp. 32467 ◽  
Author(s):  
Yaying Ning ◽  
Zhewei Dong ◽  
Jiangnan Si ◽  
Xiaoxu Deng
Keyword(s):  
Perfect Absorber ◽  
Polarization Independent ◽  
Graphene Nanostructure ◽  
Coherent Perfect Absorber

scholarly journals Polarization-independent dual-band perfect absorber utilizing multiple magnetic resonances

2013 ◽  
Vol 21 (26) ◽  
pp. 32484 ◽  
Author(s):  
Young Joon Yoo ◽  
Young Joo Kim ◽  
Pham Van Tuong ◽  
Joo Yull Rhee ◽  
Ki Won Kim ◽  
...  
Keyword(s):  
Dual Band ◽  
Perfect Absorber ◽  
Magnetic Resonances ◽  
Polarization Independent

scholarly journals Wide-angle, polarization-independent and dual-band infrared perfect absorber based on L-shaped metamaterial

2015 ◽  
Vol 23 (7) ◽  
pp. 8670 ◽  
Author(s):  
Yang Bai ◽  
Li Zhao ◽  
Dongquan Ju ◽  
Yongyuan Jiang ◽  
Linhua Liu
Keyword(s):  
Dual Band ◽  
Perfect Absorber ◽  
Wide Angle ◽  
Polarization Independent

scholarly journals An Ultrathin and Dual Band Metamaterial Perfect Absorber Based on ZnSe for the Polarization-Independent in Terahertz Range

2021 ◽  
pp. 104344
Author(s):  
Yadgar I. Abdulkarim ◽  
Fatih Özkan Alkurt ◽  
Halgurd N. Awl ◽  
Fahmi F. Muhammadsharif ◽  
Mehmet Bakır ◽  
...  
Keyword(s):  
Terahertz Range ◽  
Dual Band ◽  
Perfect Absorber ◽  
Polarization Independent ◽  
Metamaterial Perfect Absorber

scholarly journals Enhanced acoustic pressure sensors based on coherent perfect absorber-laser effect

2021 ◽  
Vol 129 (10) ◽  
pp. 104902
Author(s):  
Mohamed Farhat ◽  
Waqas W. Ahmad ◽  
Abdelkrim Khelif ◽  
Khaled N. Salama ◽  
Ying Wu
Keyword(s):  
Acoustic Pressure ◽  
Pressure Sensors ◽  
Perfect Absorber ◽  
Laser Effect ◽  
Coherent Perfect Absorber
Sign in / Sign up

Export Citation Format

Share Document