Edge effects for the light beam transmission through the resonant optical tunneling structure: Analytical theory

Bocharov, A. A.

doi:10.1016/j.optcom.2020.126318

Cited by 1 publication

(4 citation statements)

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“…Other resonant maxima correspond to larger values of the angle of incidence θ and are less convenient for adjusting the device. It is shown in [29] that the highest-quality resonant characteristics in the structure of resonant optical tunneling correspond to the situation of focusing the beam on the structure, i.e. when the waist beam is located on the interlayer boundary at the inlet prism.…”

Section: Resultsmentioning

confidence: 99%

“…In [29], a method for calculating the field distribution of the output beam for the structure of resonant optical tunneling is proposed. To take into account the influence of graphene sheets on the boundaries of the waveguide layer, it is necessary to modify the boundary conditions.…”

Section: Scheme Of the Structure And Theoretical Modelmentioning

confidence: 99%

“…These conditions follow from the analysis of small contours at the interface of dielectrics for Maxwell's equations. Here α = Nµ 0 ωσ is the parameter defined by the absolute magnetic permeability of the vacuum µ 0 , the surface conductivity of graphene σ, and the number of graphene sheets N. The distribution of the envelope of the output beam field at the boundary of the output prism takes the form [29]…”

Section: Scheme Of the Structure And Theoretical Modelmentioning

confidence: 99%

“…The resonant characteristics depending on the system parameters are studied. The second section presents a scheme of the optical system and briefly describes the calculation method based on the theoretical work [29]. The third section provides examples of calculations and discusses the results.…”

Section: Introductionmentioning

confidence: 99%

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Goos–Hänchen shift of a light beam tunable by graphene in the resonant optical tunneling structure

Bocharov¹

2022

J. Opt.

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The structure for implementing resonant optical tunneling effect (ROTE) is a simple layered system of dielectrics that provides full light transmission for resonance condition, despite the presence of barrier layers partially locking light. The presence of a sharp resonant peak both for the intensity and for the spatial shift of the transmitted light beam makes such a structure promising for the creation of sensors and light control devices. This paper focuses on the spatial shift called the Goos-Hänchen shift of such a structure with interfaces of the waveguide layer coated by graphene. The effect of Goos-Hänchen shift near the resonance in this case may be caused by small changes in the chemical potential or the Fermi energy of graphene, which can be controlled both chemically and by electrical bias. The characteristics of transmitted light beam strongly depend on the beam width for the selected optimal focusing condition.

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Section: Resultsmentioning

confidence: 99%

Section: Scheme Of the Structure And Theoretical Modelmentioning

confidence: 99%

Section: Scheme Of the Structure And Theoretical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations