Ultra-fast tunable optoelectronic 2-to-4 binary decoder using graphene-coated silica rods in photonic crystal ring resonators

Naghizade, Saleh; Didari-Bader, Azadeh; Saghaei, Hamed

doi:10.1007/s11082-022-04157-x

Cited by 26 publications

(2 citation statements)

References 67 publications

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“…Nanoelectromechanical systems (NEMS), distinguished for their elevated sensitivity, efficiency and minimal power consumption, exhibit auspicious applications across diverse domains, including sensors, 1−3 quantum detections, 4,5 radio frequency devices, 6 logic comparator, 7,8 etc. The dynamic operation of NEMS, as opposed to quasi-static behavior, has called much attention.…”

Section: ■ Introductionmentioning

confidence: 99%

Vibration Transfer in Spatially Separated Thin-Film Graphene Resonators

Liu,

Hu,

Wang

et al. 2024

ACS Appl. Nano Mater.

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The nanomechanical resonator composed of two-dimensional materials has seen extensive investigations, but the interaction between two adjacent resonators has not called much attention. The paper reports a vibration transfer phenomenon within a graphene film covering two neighboring holes. When an electrostatic excitation was applied to one of the resonators, vibration signals were detected in both resonators but with a 90° phase difference, as measured by a microscopic laser vibrometer. The findings were validated through finite element simulations and molecular dynamics simulations. It is concluded that the occurrence of this vibration transfer phenomenon is attributed to the slip displacement of graphene film within the middle connection region. The vibration transfer phenomenon sheds light on issues such as resonator excitation, signal transfer, and modal coupling. Moreover, two orthogonal signals with a 90° phase difference hold significant value for applications across various fields, including digital communication systems.

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Section: ■ Introductionmentioning

confidence: 99%

Vibration Transfer in Spatially Separated Thin-Film Graphene Resonators

Liu,

Hu,

Wang

et al. 2024

ACS Appl. Nano Mater.

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“…The exotic electromagnetic properties of metamaterials make them promising for a wide range of possible applications in energy harvesting [1][2][3], microwave imaging [4], optical materials * Author to whom any correspondence should be addressed. [5][6][7][8][9][10], and stealth materials [11]. Moreover, the metamaterial perfect absorber (MPA) designed based on electromagnetic metamaterial is a device that can effectively absorb electromagnetic waves located at the working wavelength, which can be applied not only in the defense system of national defense [12], but also in our daily life [13], providing great convenience to our life.…”

Section: Introductionmentioning

confidence: 99%

Polarization-insensitive metamaterial perfect absorber in near-infrared band based on trapezoidal silver array

Wang¹,

Feng²,

Zhang³

et al. 2023

Laser Phys.

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In this article, we presented our proposal for a metamaterial perfect absorber (MPA) operating in the near-infrared band. Our MPA comprised a trapezoidal silver layer, a substrate layer, and an intermediate alumina layer. The transmission characteristics of MPA were analyzed by the three-dimensional (3D) finite difference time domain method. The simulation results were analyzed by equivalent circuit theory. The results show that the MPA achieved 100% absorption of transverse magnetic (TM) polarization and transverse electric (TE) polarization with resonance wavelength λ = 1492.5 nm. By varying the length of the bottom side of the trapezoid, the MPA’s resonance wavelength could be effectively tuned, and the absorption was maintained at above 99%. With the incidence angle of 0°–55°, the absorption remains above 90% at TE polarization and above 80% at 55°–70°. The absorption at the TM polarization remains above 99% when the incident angle is 0°–70°. A wide angle of incidence and good absorption were achieved. The sensitivity (S) and figure of merit were 228 nm/refractive index unit and 1378 RIU−1, respectively. The proposed absorber with excellent absorption in the range of infrared spectra has a promising application potential in fields such as energy harvesting and infrared sensors.

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A plasmonic terahertz perfect absorber based on L-shaped graphene patches and gold rods

Korani,

Danaie

2023

Appl. Phys. A

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Ultra-fast tunable optoelectronic 2-to-4 binary decoder using graphene-coated silica rods in photonic crystal ring resonators

Cited by 26 publications

References 67 publications

Vibration Transfer in Spatially Separated Thin-Film Graphene Resonators

Vibration Transfer in Spatially Separated Thin-Film Graphene Resonators

Polarization-insensitive metamaterial perfect absorber in near-infrared band based on trapezoidal silver array

A plasmonic terahertz perfect absorber based on L-shaped graphene patches and gold rods

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