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A Tunable Low-Pass Filter Based on MIM Structure with Kerr Effect.

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Title: A Tunable Low-Pass Filter Based on MIM Structure with Kerr Effect.
Authors: Song, JiaQi1 (AUTHOR), Tian, He1 (AUTHOR) tianhe@nefu.edu.cn, Hao, Yu2 (AUTHOR), Zhang, XinYi1 (AUTHOR)
Source: Plasmonics. May2025, Vol. 20 Issue 5, p2625-2633. 9p.
Subjects: Optical information processing, Light filters, Refractive index, Surface structure, Polaritons
Abstract: In this paper, a tunable low-pass optical filter based on metal–insulator-metal (MIM) structure with surface plasmon polaritons (SPPs) is proposed and discussed, which is composed of a bus waveguide containing two silver rods with square section (SRSS) and two semi-elliptical resonators (SERs) partially filled with Kerr material. After optimizing the structural parameters, a relatively ideal low-pass filtering effect is achieved. The minimum transmittance of the passband is 0.76, and the roll off coefficient (ROC) of the filtering barrier is up to 1.55 × 10−7 GHz−1. Furthermore, based on the influence of refractive index on optical modes in the two SERs, the cutoff frequency of the filtering effect can be conveniently adjusted by controlling the external light field irradiated on the Kerr material. The sensitivity of the right cutoff frequency adjustment is 11.6 GHz·μm2/mW, accompanied by an increase in the ROC. The low-pass filter with tunable cutoff frequency may have promising applications in integrated optical communication and information processing. [ABSTRACT FROM AUTHOR]
Copyright of Plasmonics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A Tunable Low-Pass Filter Based on MIM Structure with Kerr Effect.
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  Data: <searchLink fieldCode="JN" term="%22Plasmonics%22">Plasmonics</searchLink>. May2025, Vol. 20 Issue 5, p2625-2633. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Optical+information+processing%22">Optical information processing</searchLink><br /><searchLink fieldCode="DE" term="%22Light+filters%22">Light filters</searchLink><br /><searchLink fieldCode="DE" term="%22Refractive+index%22">Refractive index</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+structure%22">Surface structure</searchLink><br /><searchLink fieldCode="DE" term="%22Polaritons%22">Polaritons</searchLink>
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  Data: In this paper, a tunable low-pass optical filter based on metal–insulator-metal (MIM) structure with surface plasmon polaritons (SPPs) is proposed and discussed, which is composed of a bus waveguide containing two silver rods with square section (SRSS) and two semi-elliptical resonators (SERs) partially filled with Kerr material. After optimizing the structural parameters, a relatively ideal low-pass filtering effect is achieved. The minimum transmittance of the passband is 0.76, and the roll off coefficient (ROC) of the filtering barrier is up to 1.55 × 10−7 GHz−1. Furthermore, based on the influence of refractive index on optical modes in the two SERs, the cutoff frequency of the filtering effect can be conveniently adjusted by controlling the external light field irradiated on the Kerr material. The sensitivity of the right cutoff frequency adjustment is 11.6 GHz·μm2/mW, accompanied by an increase in the ROC. The low-pass filter with tunable cutoff frequency may have promising applications in integrated optical communication and information processing. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Plasmonics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s11468-024-02502-2
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      – Code: eng
        Text: English
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        StartPage: 2625
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      – SubjectFull: Optical information processing
        Type: general
      – SubjectFull: Light filters
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      – SubjectFull: Refractive index
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      – SubjectFull: Surface structure
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      – SubjectFull: Polaritons
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      – TitleFull: A Tunable Low-Pass Filter Based on MIM Structure with Kerr Effect.
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            – D: 01
              M: 05
              Text: May2025
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              Y: 2025
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