Controlling near-field coupling for switchable metamaterial between absorption and polarization-conversion functions
Keywords:Metamaterials, polarization conversion, perfect absorption
In this paper, a multifunctional metamaterial (MM) structure capable of performing as a polarization converter and absorber is proposed. By using DC bias voltage to control the capacitor of the integrated varactor, the near-field coupling in our structure can be manipulated to flexibly switch between polarization conversion (PC) mode and perfect absorption (PA) mode. The numerical simulation results show that in PC mode the polarization conversion ratio exceeds 90 % at 4 GHz, while the dual-band absorption is observed in PA mode with a value close to 90 % at 3.5 and 5.5 GHz. In addition, we also reduce the geometric sizes of the proposed structure to further examine its performance in the THz frequency range. Owing to its excellent characteristics in both PA and PC modes, the proposed hybrid MM structure is promising to apply in many fields such as radar, remote sensing, and satellite.
Khan M. I., Fraz Q. and Tahir F. A. - Ultra-wideband cross polarization conversion metasurface insensitive to incidence angle, J. Appl. Phys. 121 (4) (2017) 045103. https://doi.org/10.1063/1.4974849. https://doi.org/10.1063/1.4974849.">
Landy N. I., Sajuyigbe S., Mock J. J., Smith D. R. and Padilla W. J. - Perfect metamaterial absorber, Phys. Rev. Lett. 100 (20) (2008) 207402. https://doi.org/10.1103/ PhysRevLett.100.207402. https://doi.org/10.1103/ PhysRevLett.100.207402.">
Kim Y. J., Hwang J. S., Yoo Y. J., Khuyen B. X., Rhee J. Y., Chen X. and Lee Y. - Ultrathin microwave metamaterial absorber utilizing embedded resistors, J. Phys. D: Appl. Phys. 50 (40) (2017) 405110. https://doi.org/10.1088/1361-6463/aa82f4. https://doi.org/10.1088/1361-6463/aa82f4.">
Grant J., Ma Y., Saha S., Khalid A. and Cumming D. R. S. - Polarization insensitive, broadband terahertz metamaterial absorber, Opt. Lett. 36 (17) (2011) 3476-3478. https://doi.org/10.1364/OL.36.003476. https://doi.org/10.1364/OL.36.003476.">
Prakash D. and Gupta N. - Applications of metamaterial sensors: a review, Int. J. Microw. Wirel. Technol. 14 (1) (2021) 19-33. https://doi.org/10.1017/S1759078721000039. https://doi.org/10.1017/S1759078721000039.">
Rufangura P. and Sabah C. - Perfect metamaterial absorber for applications in sustainable and high-efficiency solar cells, J. Nanophotonics. 12 (2) (2018) 026002. https://doi.org/ 10.1117/1.JNP.12.026002. https://doi.org/ 10.1117/1.JNP.12.026002.">
Watts C. M., Liu X. and Padilla W. J. - Metamaterial electromagnetic wave absorbers, Adv. Mater. 24 (23) (2012) OP98-OP120. https://doi.org/10.1002/adma.201200674. https://doi.org/10.1002/adma.201200674.">
Rahman S. U., Cao Q., Akram M. R., Amin F. and Wang Y. - Multifunctional polarization converting metasurface and its application to reduce the radar cross-section of an isolated MIMO antenna, J. Phys. D: Appl. Phys. 53 (30) (2020) 305001. https://doi.org/10.1088/1361-6463/ab85e7. https://doi.org/10.1088/1361-6463/ab85e7.">
Dietlein C., Luukanen A., Popovi Z. and Grossman E. - A W-band polarization converter and isolator, IEEE Trans. Antennas Propag. 55 (6) (2007) 1804-1809. http://dx.doi.org/ 10.1109/TAP.2007.898595. http://dx.doi.org/ 10.1109/TAP.2007.898595.">
Ren Z., Sun Y., Zhang S., Zhang K., Lin Z. and Wang S. - Wide wavelength range tunable guided-mode resonance filters based on incident angle rotation for all telecommunication bands, Infrared Phys. Technol. 93 (2018) 81-86. https://doi.org/10.1016/j.infrared.2018.07.015. https://doi.org/10.1016/j.infrared.2018.07.015.">
Mookiah P. and Dandekar K. R. - Metamaterial-substrate antenna array for MIMO communication system, IEEE Trans. Antennas Propag. 57 (10) (2009) 3283-3292. https://doi.org/10.1109/TAP.2009.2028638. https://doi.org/10.1109/TAP.2009.2028638.">
Glybovski S. B., Tretyakov S. A., Belov P. A., Kivshar Y. S. and Simovski C. R. - Metasurfaces: From microwaves to visible, Phys. Rep. 634 (2016) 1-72. https://doi.org/10.1016/j.physrep.2016.04.004. https://doi.org/10.1016/j.physrep.2016.04.004.">
Khuyen B. X., Tung B. S., Kim Y. J., Hwang J. S., Kim K. W., Rhee J. Y., Lam V. D., Kim Y. H. and Lee Y. P. - Ultra-subwavelength thickness for dual/triple-band metamaterial absorber at very low frequency, Sci. Rep. 8 (2018) 11632. https://doi.org/10.1038/s41598-018-29896-4. https://doi.org/10.1038/s41598-018-29896-4.">
Rahmanshahi M., Kourani S. N., Golmohammadi S., Baghban H. and Vahed H. - A tunable perfect THz metamaterial absorber with three absorption peaks based on nonstructured graphene, Plasmonics, 16 (5) (2021) 1665-1676. https://doi.org/10.1007/ s11468-021-01432-7. https://doi.org/10.1007/ s11468-021-01432-7.">
Mostaan S. M. A. and Saghaei H. - A tunable broadband graphene-based metamaterial absorber in the far-infrared region, Opt. Quantum Electron. 53 (2) (2021) 96. https://doi.org/10.1007/s11082-021-02744-y. https://doi.org/10.1007/s11082-021-02744-y.">
Bilal R. M. H., Saeed M. A., Choudhury P. K., Baqir M. A., Kamal W., Ali M. M. and Rahim A. A. - Elliptical metallic rings-shaped fractal metamaterial absorber in the visible regime, Sci. Rep. 10 (2020) 14035. https://doi.org/10.1038/s41598-020-71032-8. https://doi.org/10.1038/s41598-020-71032-8.">
Zhao J., Cheng Q., Chen J., Qi M. Q., Jiang W. X. and Cui T. J. - A tunable metamaterial absorber using varactor diodes, New J. Phys. 15 (4) (2013) 043049. https://doi.org/ 10.1088/1367-2630/15/4/043049. https://doi.org/ 10.1088/1367-2630/15/4/043049.">
Huang X., Chen J. and Yang H. - High-efficiency wideband reflection polarization conversion metasurface for circularly polarized waves, J. Appl. Phys. 122 (4) (2017) 043102. https://doi.org/10.1063/1.4996643. https://doi.org/10.1063/1.4996643.">
Shrekenhamer D., Chen W-C. and Padilla W. J. - Liquid crystal tunable metamaterial absorber, Phys. Rev. Lett. 110 (17) (2013) 177403. https://doi.org/10.1103/ PhysRevLett.110.177403. https://doi.org/10.1103/ PhysRevLett.110.177403.">
Nouman M. T., Kim H. W., Woo J. M., Hwang J. H., Kim D., and Jang J. H. - Terahertz modulator based on metamaterials integrated with metal-semiconductor-metal varactors, Sci. Rep. 6 (2016) 26452. https://doi.org/10.1038/srep26452. https://doi.org/10.1038/srep26452.">
How to Cite
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Vietnam Journal of Sciences and Technology (VJST) is an open access and peer-reviewed journal. All academic publications could be made free to read and downloaded for everyone. In addition, articles are published under term of the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA) Licence which permits use, distribution and reproduction in any medium, provided the original work is properly cited & ShareAlike terms followed.
Copyright on any research article published in VJST is retained by the respective author(s), without restrictions. Authors grant VAST Journals System a license to publish the article and identify itself as the original publisher. Upon author(s) by giving permission to VJST either via VJST journal portal or other channel to publish their research work in VJST agrees to all the terms and conditions of https://creativecommons.org/licenses/by-sa/4.0/ License and terms & condition set by VJST.
Authors have the responsibility of to secure all necessary copyright permissions for the use of 3rd-party materials in their manuscript.