Tunable and ultra-narrowband multifunctional terahertz devices using anisotropic graphene based hyperbolic metamaterials

被引:0
作者
Tavana, Shahab [1 ]
Bahadori-Haghighi, Shahram [2 ]
Ye, Winnie N. [1 ]
机构
[1] Carleton Univ, Dept Elect, Ottawa, ON K1S 5B6, Canada
[2] Shiraz Univ, Sch Elect & Comp Engn, Dept Commun & Elect, Shiraz, Iran
来源
SCIENTIFIC REPORTS | 2024年 / 14卷 / 01期
关键词
DIMENSIONAL PHOTONIC CRYSTAL; WAVE-GUIDE; DESIGN; SINGLE; RANGE;
D O I
10.1038/s41598-024-82763-3
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In this paper, we propose a novel structure of anisotropic graphene-based hyperbolic metamaterial (AGHMM) sandwiched as a defect between two one-dimensional photonic crystals (PCs) in the terahertz (THz) region. The proposed structure is numerically simulated and analyzed using the transfer matrix method, effective medium theory and three-dimensional finite-difference time-domain. The defect layer of AGHMM consists of graphene sheets separated by subwavelength dielectric spacers. According to the presented results, a sharp defect mode originated from the optical Tamm state (OTS) takes place at the interfaces between PCs and AGHMM. The platform is then applied as various THz devices with outstanding characteristics compared with their previous counterparts. The performance of all the proposed devices can be tuned by changing the incident angle and graphene chemical potential. Our designed electro-optical modulator exhibits a high extinction ratio of 24.75 dB. The required switching voltage and insertion loss are as low as 9.94 V and 0.05 dB, respectively. Owing to the anisotropy of graphene, a tunable polarizer over wide incident angles is attained. The highest polarization extinction ratios (PERs) for TE- and TM-pass polarizers are 42.4 dB and 76.8 dB, respectively, which are the highest PER ever reported. By introducing more AGHMM defects, multiband tunable filters with quality factors of as high as 75314 are realized. Finally, a narrowband perfect absorber is proposed so that a high absorption of 99.8% with an ultra-narrow FWHM of 0.00055 THz is achieved. Hence, the proposed structure is a promising platform that could have many potential THz applications.
引用
收藏
页数:21
相关论文
共 81 条
[1]   Negative Refraction with Superior Transmission in GrapheneHexagonal Boron Nitride (hBN) Multilayer Hyper Crystal [J].
Al Sayem, Ayed ;
Rahman, Md. Masudur ;
Mahdy, M. R. C. ;
Jahangir, Ifat ;
Rahman, Md. Saifur .
SCIENTIFIC REPORTS, 2016, 6
[2]   2 x 2 anisotropic transfer matrix approach for optical propagation in uniaxial transmission filter structures [J].
Al-Ghezi, Hammid ;
Gnawali, Rudra ;
Banerjee, Partha P. ;
Sun, Lirong ;
Slagle, Jonathan ;
Evans, Dean .
OPTICS EXPRESS, 2020, 28 (24) :35761-35783
[3]   MATLAB simulation based study on poliovirus sensing through one-dimensional photonic crystal with defect [J].
Aly, Arafa H. H. ;
Mohamed, B. A. ;
Awasthi, S. K. ;
Abdallah, Suhad Ali Osman ;
Amin, A. F. .
SCIENTIFIC REPORTS, 2023, 13 (01)
[4]  
Bae S, 2010, NAT NANOTECHNOL, V5, P574, DOI [10.1038/NNANO.2010.132, 10.1038/nnano.2010.132]
[5]   Three-Dimensional Analysis of an Ultrashort Optical Cross-Bar Switch Based on a Graphene Plasmonic Coupler [J].
Bahadori-Haghighi, Shahram ;
Ghayour, Rahim ;
Sheikhi, Mohammad Hossein .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2017, 35 (11) :2211-2217
[6]   Tunable narrowband terahertz multichannel filter based on one-dimensional graphene-dielectric photonic crystal [J].
Belhadj, Walid ;
Al-Ahmadi, Ameenah N. .
OPTICAL AND QUANTUM ELECTRONICS, 2021, 53 (01)
[7]   Multi-mode absorption in multi-cavity photonic crystal with two graphene monolayers [J].
Bian, Li-an ;
Liu, Peiguo ;
Li, Gaosheng ;
Chen, Yuwei ;
Liu, Hanqing ;
Liu, Chenxi .
SUPERLATTICES AND MICROSTRUCTURES, 2017, 112 :303-310
[8]   Metamaterial enhanced subwavelength imaging of inaccessible defects in guided ultrasonic wave inspection [J].
Birir, John Kiprotich ;
Gatari, Michael James ;
Ali, Mohamed Subair Syed Akbar ;
Rajagopal, Prabhu .
NDT & E INTERNATIONAL, 2024, 143
[9]  
Caligiuri V., Laser Photonics Rev.
[10]   Realization of mid-infrared graphene hyperbolic metamaterials [J].
Chang, You-Chia ;
Liu, Che-Hung ;
Liu, Chang-Hua ;
Zhang, Siyuan ;
Marder, Seth R. ;
Narimanov, Evgenii E. ;
Zhong, Zhaohui ;
Norris, Theodore B. .
NATURE COMMUNICATIONS, 2016, 7