Magnetically controllable transmission spectrum of a 1D photonic crystal with a graphene defect layer in infrared region

Shiri, Jalil; Khalilzadeh, Javad

doi:10.1007/s11082-020-02620-1

Cited by 4 publications

(2 citation statements)

References 50 publications

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“…In recent years, attention to the optical properties of photonic crystals has increased due to their many applications in optical devices [1][2][3][4]. One of the most important fields that have recently been studied based on crystal photonics is the field of quantum optics.…”

Section: Introductionmentioning

confidence: 99%

Optical properties of ⁸⁷Rb atomic vapor near the 1D photonic crystal bandgap and all-optical switching of transmitted light

Shiri¹,

Khalilzadeh²,

Asadpour³

2022

Phys. Scr.

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We investigate the steady-state and dynamic behavior of the optical properties of the laser pulse in a GaAs/AlAs 1D photonic crystal (1DPC) with an atomic vapor defect layer. We chose the atomic vapor of the 87Rb as a defect layer by driving the probe field on the D2 transition between 52P3/2 - 52S1/2 levels through the 1DPC. The effect of the photonic bandgap (PBG) on the absorption and dispersion properties of the probe field is discussed. Moreover, the transmission and reflection coefficient of the 1DPC is controlled by applying the various value of the intensity of the coupling field. By comparing these results in the vacuum and near the PBG, we find that the absorption/dispersion and transmission/reflection properties are strongly affected by the PBG. We find that all-optical properties of atomic vapor in the surrounding of 1DPC are improved due to PBG. Furthermore, the effect of the intensity of the coupling field on the all-optical switching is studded. The proposed model may provide some new possibilities for technological applications as an all-optical device based on the photonic crystal in quantum information science, quantum computing, signal processing, and quantum communications.

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Section: Introductionmentioning

confidence: 99%

Optical properties of ⁸⁷Rb atomic vapor near the 1D photonic crystal bandgap and all-optical switching of transmitted light

Shiri¹,

Khalilzadeh²,

Asadpour³

2022

Phys. Scr.

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“…Based on the experiments with onedimensional strain-tunable PCs, it was demonstrated that 1D graphene dielectric PCs with controllable photonic band gaps that were achieved by uniaxially straining graphene were capable of showing contraction or broadening along with different chain crystal directions [19]. In addition, the magnetooptical properties of one-dimensional PCs with graphene defect layers were also investigated, and the results showed that the steady-state behavior of the medium depended entirely on the strength of the magnetic and coherent coupling fields [20].…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Characteristics of the Graphene-Photonic Crystal Composite Structure in the IR Regime

et al. 2022

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In this work a graphene-photonic crystal composite structure is proposed, in which graphene nanoribbons are placed on top of a photonic crystal that is composed of two alternating dielectric materials. The optical properties of the composite structure are investigated in the infrared regime, by varying the Fermi energy, the layer number of the graphene, as well as the polarization angle of the incident light. Plasmonic resonance effects are revealed and the resonance wavelength, the peak width, and the peak intensity are determined. Quantitatively, the polarization-angle dependent peak intensity is well fitted to a trigonometric function. It is demonstrated that the resonance peak is quite sensitive to the dielectric material that is adjacent to the graphene. It is also shown that the structure has a high sensitivity of 7660 nm/RIU to the refractive index of the surrounding environment, with a figure of merit of 6.38. Based on the results, the graphene-photonic crystal composite structure proposed in this work may have potential applications in designing of plasmonic devices, such as ones that can be used to detect subtle variations in the refractive index of surrounding environments.

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Tunable properties of the absorption in a binary photonic crystal having a metamaterial as a defect layer and two graphene sheets in the range of GHz

Almawgani

Sharma²,

Daher

et al. 2022

Opt Quant Electron

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Light absorption is essential in the construction of photodetectors and photovoltaic applications. In this work, the absorption properties of a defective photonic crystal are analyzed in the GHz region using the transfer matrix method. The defect layer is assumed to be a metamaterial of negative optical parameters sandwiched between two sheets of graphene. The tunable properties of absorption are investigated with the graphene chemical potential and phenomenological scattering rate and the thickness of the metamaterial layer. The results reveal that the number, position and height of the absorption resonant peaks are tuned by graphene optical properties. The spectra are studied with and without graphene sheets and an extra peak is created when two sheets of graphene are inserted on both sides of the metamaterial. The proposed photonic device can be useful in designing graphene and metamaterialbased optical devices such as absorbers, lters and sensors in the GHz region.

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Magnetically controllable transmission spectrum of a 1D photonic crystal with a graphene defect layer in infrared region

Cited by 4 publications

References 50 publications

Optical properties of ⁸⁷Rb atomic vapor near the 1D photonic crystal bandgap and all-optical switching of transmitted light

Optical properties of ⁸⁷Rb atomic vapor near the 1D photonic crystal bandgap and all-optical switching of transmitted light

Plasmonic Characteristics of the Graphene-Photonic Crystal Composite Structure in the IR Regime

Tunable properties of the absorption in a binary photonic crystal having a metamaterial as a defect layer and two graphene sheets in the range of GHz

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Magnetically controllable transmission spectrum of a 1D photonic crystal with a graphene defect layer in infrared region

Cited by 4 publications

References 50 publications

Optical properties of 87Rb atomic vapor near the 1D photonic crystal bandgap and all-optical switching of transmitted light

Optical properties of 87Rb atomic vapor near the 1D photonic crystal bandgap and all-optical switching of transmitted light

Plasmonic Characteristics of the Graphene-Photonic Crystal Composite Structure in the IR Regime

Tunable properties of the absorption in a binary photonic crystal having a metamaterial as a defect layer and two graphene sheets in the range of GHz

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Product

Resources

About

Optical properties of ⁸⁷Rb atomic vapor near the 1D photonic crystal bandgap and all-optical switching of transmitted light

Optical properties of ⁸⁷Rb atomic vapor near the 1D photonic crystal bandgap and all-optical switching of transmitted light