volume | PIER Journals

Abstract

Wide-stopband plasmonic filters are essential components in compact mid-infrared (MIR) photonic systems. This work proposes a geometrically tunable wide-stopband plasmonic filter based on a metal-insulator-metal (MIM) waveguide with dual resonator cavities. The optical response is numerically investigated using the two-dimensional finite-difference time-domain (2D FDTD) method. The influence of the resonator height H₂ and the inter-cavity distance D on the stopband characteristics is analyzed. The symmetric dual-cavity configuration enables effective control of the stopband bandwidth and central wavelength. The design achieves a significantly broadened stopband while maintaining compactness and high transmission selectivity, making it a promising candidate for integration into mid-infrared photonic and sensing systems.

1. Zavvari, Mahdi, Milad Taleb Hesami Azar, and Armin Arashmehr, "Tunable band-stop plasmonic filter based on square ring resonators in a metal-insulator-metal structure," Journal of Modern Optics, Vol. 64, No. 20, 2221-2227, 2017.
doi:10.1080/09500340.2017.1349195 Google Scholar

2. Zegaar, I., A. Hocini, and H. Ben salah, "Modeling and analysis of the RI sensitivity of plasmonic sensor based on MIM waveguide-coupled structure," Journal of Physics: Conference Series, Vol. 1859, No. 1, 012024, 2021.
doi:10.1088/1742-6596/1859/1/012024

3. Khatooni, Hanieh Salimzadeh, Karim Abbasian, and Tofiq Nurmohammadi, "A tunable band-stop plasmonic waveguide filter and switch designing with triangular resonator based on Kerr non-linearity," Optik, Vol. 224, 165708, 2020.
doi:10.1016/j.ijleo.2020.165708 Google Scholar

4. Zegaar, Imane, Abdesselam Hocini, Ahlam Harhouz, Djamel Khedrouche, and H. Salah, "Design of a double-mode plasmonic wavelength filter using a defective circular nano-disk resonator coupled to two MIM waveguides," Progress In Electromagnetics Research Letters, Vol. 104, 67-75, 2022.
doi:10.2528/pierl22012905 Google Scholar

5. Ghorbani, Saeed, Mojtaba Sadeghi, and Zahra Adelpour, "Investigation and analysis of a tunable plasmonic filter based on the Kerr nonlinear effect of a gold nanocomposite," Laser Physics, Vol. 30, No. 8, 086201, 2020.
doi:10.1088/1555-6611/ab89b3 Google Scholar

6. Harhouz, Ahlam and Abdesselam Hocini, "Highly sensitive plasmonic temperature sensor based on Fano resonances in MIM waveguide coupled with defective oval resonator," Optical and Quantum Electronics, Vol. 53, No. 8, 439, 2021.
doi:10.1007/s11082-021-03088-3 Google Scholar

7. Zaki, Aya O., Khaled Kirah, and Mohamed A. Swillam, "Hybrid plasmonic electro-optical modulator," Applied Physics A, Vol. 122, No. 4, 473, 2016.
doi:10.1007/s00339-016-9843-y Google Scholar

8. Das, Susbhan, Alessandro Salandrino, Judy Z. Wu, and Rongqing Hui, "Near-infrared electro-optic modulator based on plasmonic graphene," Optics Letters, Vol. 40, No. 7, 1516-1519, 2015.
doi:10.1364/ol.40.001516 Google Scholar

9. Maier, Stefan A., Plasmonics: Fundamentals and Applications, Springer, 2007.

10. Dmitriev, Victor A. and Anderson Oliveira Silva, "Nonreciprocal properties of surface plasmon-polaritons at the interface between two magnetized media: Exact analytical solutions," Progress In Electromagnetics Research Letters, Vol. 21, 177-186, 2011.
doi:10.2528/PIERL11011904 Google Scholar

11. Ozbay, Ekmel, "Plasmonics: Merging photonics and electronics at nanoscale dimensions," Science, Vol. 311, No. 5758, 189-193, 2006.
doi:10.1126/science.1114849 Google Scholar

12. Kuttge, M., E. J. R. Vesseur, J. Verhoeven, H. J. Lezec, H. A. Atwater, and A. Polman, "Loss mechanisms of surface plasmon polaritons on gold probed by cathodoluminescence imaging spectroscopy," Applied Physics Letters, Vol. 93, No. 11, 113110, 2008.
doi:10.1063/1.2987458 Google Scholar

13. Halterman, Klaus, J. Merle Elson, and P. L. Overfelt, "Characteristics of bound modes in coupled dielectric waveguides containing negative index media," Optics Express, Vol. 11, No. 6, 521-529, 2003.
doi:10.1364/oe.11.000521 Google Scholar

14. Butt, M. A., "Review of innovative cavity designs in metal-insulator-metal waveguide-based plasmonic sensor," Plasmonics, Vol. 20, 4257-4276, 2025.
doi:10.1007/s11468-024-02562-4 Google Scholar

15. Johnson, P. B. and R. W. Christy, "Optical constants of the noble metals," Physical Review B, Vol. 6, No. 12, 4370, 1972.
doi:10.1103/physrevb.6.4370 Google Scholar

16. McMahon, Jeffrey M., Stephen K. Gray, and George C. Schatz, "Nonlocal optical response of metal nanostructures with arbitrary shape," Physical Review Letters, Vol. 103, No. 9, 097403, 2009.
doi:10.1103/physrevlett.103.097403 Google Scholar

17. Law, S., D. C. Adams, A. M. Taylor, and D. Wasserman, "Mid-infrared designer metals," Optics Express, Vol. 20, No. 11, 12155-12165, 2012.
doi:10.1364/oe.20.012155 Google Scholar

18. Derkachova, Anastasiya, Krystyna Kolwas, and Iraida Demchenko, "Dielectric function for gold in plasmonics applications: Size dependence of plasmon resonance frequencies and damping rates for nanospheres," Plasmonics, Vol. 11, No. 3, 941-951, 2016.
doi:10.1007/s11468-015-0128-7 Google Scholar

19. Wang, Hongqing, Junbo Yang, Jingjing Zhang, Jie Huang, Wenjun Wu, Dingbo Chen, and Gongli Xiao, "Tunable band-stop plasmonic waveguide filter with symmetrical multiple-teeth-shaped structure," Optics Letters, Vol. 41, No. 6, 1233-1236, 2016.
doi:10.1364/ol.41.001233 Google Scholar

20. Lu, Hua, Xueming Liu, Dong Mao, Leiran Wang, and Yongkang Gong, "Tunable band-pass plasmonic waveguide filters with nanodisk resonators," Optics Express, Vol. 18, No. 17, 17922-17927, 2010.
doi:10.1364/oe.18.017922 Google Scholar

21. Zhou, Zixiang, Liangliang Liu, Xinhua Li, Jinrui Shen, Guodong Han, and Zhuo Li, "Dual-band bandpass plasmonic filter based on effective localized surface plasmon resonators," Applied Computational Electromagnetics Society Journal (ACES), Vol. 37, No. 10, 1031-1038, Oct. 2022.
doi:10.13052/2022.aces.j.371003 Google Scholar

22. Anusha, Palagati, K. Srihari, and S. Karthik, "Reconfigurable plasmonic waveguides based on phase-change materials for on-chip optical switching," Plasmonics, Vol. 21, No. 1, 1415-1424, 2026.
doi:10.1007/s11468-025-03294-9 Google Scholar

23. Huang, Shuyu, Hui Wang, and Shiyu Shen, "Multiband tunable perfect absorber based on graphene metamaterials," Physica Scripta, Vol. 100, 045519, 2025.
doi:10.1088/1402-4896/adbc2a Google Scholar

24. Zegaar, Imane, Abdesselam Hocini, Djamel Khedrouche, Hocine Ben salah, and Hocine bahri, "Plasmonic stop-band filter based on an MIM waveguide coupled with cavity resonators," Journal of Physics: Conference Series, Vol. 2240, No. 1, 012025, 2022.
doi:10.1088/1742-6596/2240/1/012025

25. Salah, Hocine Ben, Hocine Bahri, Abdesselam Hocini, Imane Zegaar, Sven Ingebrandt, and Vivek Pachauri, "Design of a plasmonic sensor based on a nanosized structure for biochemical application," Journal of Physics: Conference Series, Vol. 2240, No. 1, 012024, 2022.
doi:10.1088/1742-6596/2240/1/012024

26. Kazanskiy, N. L., Muhammad Ali Butt, and S. N. Khonina, "Nanodots decorated MIM semi-ring resonator cavity for biochemical sensing applications," Photonics and Nanostructures --- Fundamentals and Applications, Vol. 42, 100836, 2020.
doi:10.1016/j.photonics.2020.100836 Google Scholar

27. Salah, Hocine Ben, A. Hocini, M. N. Temmar, and D. Khedrouche, "Design of mid infrared high sensitive metal-insulator-metal plasmonic sensor," Chinese Journal of Physics, Vol. 61, 86-97, 2019.
doi:10.1016/j.cjph.2019.07.006 Google Scholar

28. Hocini, Abdesselam, Hocine Ben Salah, Djamel Khedrouche, and Noureddine Melouki, "A high-sensitive sensor and band-stop filter based on intersected double ring resonators in metal-insulator-metal structure," Optical and Quantum Electronics, Vol. 52, No. 7, 336, 2020.
doi:10.1007/s11082-020-02446-x Google Scholar

29. Pooretemad, Siavash, Alireza Malekijavan, and Mehdi Aslinezhad, "Ultrawideband bandstop filter based on Fano resonance and rectangular resonators," Applied Optics, Vol. 60, No. 14, 4266-4272, 2021.
doi:10.1364/ao.422475 Google Scholar

30. Zhai, Xiang, Liu Wang, Ling-Ling Wang, Xiao-Fei Li, Wei-Qing Huang, Shuang-Chun Wen, and Dian-Yuan Fan, "Tuning bandgap of a double-tooth-shaped MIM waveguide filter by control widths of the teeth," Journal of Optics, Vol. 15, No. 5, 055008, 2013.
doi:10.1088/2040-8978/15/5/055008 Google Scholar

31. Zegaar, Imane, Abdesselam Hocini, Hocine Bensalah, Ahlam Harhouz, Djamel Khedrouche, and Mahieddine Lahoubi, "Ultra wideband bandstop plasmonic filter in the NIR region based on stub resonators," Physica Scripta, Vol. 98, No. 5, 055510, 2023.
doi:10.1088/1402-4896/acc90a Google Scholar

Mr. Ahmed Lounis

Dr. Imane Zegaar

Dr. Hocine Bensalah

Professor Abdesselam Hocini