Nonlinear tuning techniques of plasmonic nano-filters

Kotb, Rehab; Ismail, Yehea; Swillam, Mohamed A.

doi:10.1016/j.optcom.2014.09.062

Cited by 29 publications

(6 citation statements)

References 39 publications

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“…As a consequence, the filter response can be controlled mechanically by changing the filter dimensions [10] or electro-optically using non-linear material [20]. The non-linear effect of the dielectric materials can be expressed by:…”

Section: Filter Tunabilitymentioning

confidence: 99%

Nonlinear electro-optic tuning of plasmonic nano-filter

2015

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Efficient, easy and accurate tuning techniques to a plasmonic nano-filter are investigated. The proposed filter supports both blue and red shift in the resonance wavelength. By varying the refractive index with a very small change (in the order of 10 -3 ), the resonance wavelength can be controlled efficiently. Using Pockels material, an electrical tuning to the response of the filter is demonstrated. In addition, the behavior of the proposed filter can be controlled optically using Kerr material. A new approach of multi-stage electro-optic controlling is introduced. By cascading two stages and filling the first stage with pockels material and the second stage with kerr material, the output response of the second stage can be controlled by controlling the output response of the first stage electrically. Due to the sharp response of the proposed filter, 60nm shift in the resonance wavelength per 10 voltages is achieved. This nano-filter has compact size, low loss, sharp response and wide range of tunabilty which is highly demandable in many biological and sensing applications.

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Section: Filter Tunabilitymentioning

confidence: 99%

Nonlinear electro-optic tuning of plasmonic nano-filter

2015

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“…22 The surface charge density oscillations due to surface plasmons can cause to enhance optical near-elds strongly in the space above the surface. This characteristic is noticed in designing optical subwavelength devices such as nano-antenna, 23 optical nano lter, 24 and optical coupler. 25 Plasmonic nanoparticles can conne the light, so the absorption of light is increased.…”

Section: Introductionmentioning

confidence: 97%

Analytical study of gold–DNA nano core–shell cloaking characteristics for drug delivery and cancer therapy

et al. 2023

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“…This property enables the miniaturization of plasmonic components to sub-wavelength scales [4], such that their sizes can be reduced to match those of nano-electronic components, thus enabling their integration in electronic-plasmonic circuits. A wide range of applications based on plasmonic effects are being developed and investigated including photovoltaic applications [5][6][7], optical modulators [8][9][10], sensors [11][12][13] and optical filters [14,15]. Plasmonic nano-sensors, in particular, are considered as one of the most successful applications of plasmonics thanks to their high sensitivity [16,17].…”

Section: Introductionmentioning

confidence: 99%

Integrated plasmonic refractometric sensor using Fano resonance

Sherif

Zografopoulos

Shahada

et al. 2017

J. Phys. D: Appl. Phys.

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We propose a plasmonic refractometric sensor that is based on Fano resonances excited in a resonant rectangular cavity coupled to a metal-insulator-metal bus waveguide. The properties of the resonances are controlled by varying the dimensions of the rectangular resonator and the observed Fano profile stems from the multimode interference of resonant cavity modes. We theoretically investigate the device's performance as a highly sensitive refractometric plasmonic sensor which operates on gases, water and organic solvent solutions with tens of femtoliters of analyte. The sensor is studied in a wide operational range (0.7-2.7 μm) covering the entire near infrared spectral range, and is characterized by large sensitivity, which reaches 1550 nm RIU −1 , and sensitivity per unit volume higher than 10 7 nm (RIU • nl) −1 at the resonant wavelength of 1.55 μm. The proposed plasmonic structure is very promising for integrated sensing applications owing to its small footprint and surprisingly simple layout.

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Nonlinear tuning techniques of plasmonic nano-filters

Cited by 29 publications

References 39 publications

Nonlinear electro-optic tuning of plasmonic nano-filter

Nonlinear electro-optic tuning of plasmonic nano-filter

Analytical study of gold–DNA nano core–shell cloaking characteristics for drug delivery and cancer therapy

Integrated plasmonic refractometric sensor using Fano resonance

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