Comparison of Goos–Hänchen shifts of the reflected beam from graphene on dielectrics and metals

Jiang, Leyong; Wu, Jipeng; Dai, Xiaoyu; Xiang, Yuanjiang

doi:10.1016/j.ijleo.2014.08.080

Cited by 14 publications

(9 citation statements)

References 42 publications

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“…[7] Usually, GH shift was studied at the interface of the structure containing two homogeneous materials with different optical characteristics, and the GH shift is very small in this case, almost comparable to the wavelength of the incident beam. [8][9][10][11] For better research, measurement, and application, thus, how to obtain a giant GH shift has always been the goal pursued by researchers.…”

Section: Introductionmentioning

confidence: 99%

Giant Goos–Hänchen shifts of waveguide coupled long-range surface plasmon resonance mode

You¹,

Zhu²,

Guo³

et al. 2018

Chinese Phys. B

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A hybrid structure based on a planar waveguide (PWG) mode coupling a long-range surface plasmon resonance (LRSPR) mode is proposed to enhance the GH shift. Both the PWG mode and LRSPR mode can be in strong resonance, and these two modes can be coupled together due to the normal-mode splitting. The largest GH shift of PWG-coupled LRSPR structure is 4156 times that of the incident beam, which is 23 times and 3.6 times that of the surface plasmon resonance (SPR) structure and the LRSPR structure, respectively. As a GH shift sensor, the highest sensitivity of 4.68 × 10 7 λ is realized in the coupled structure. Compared with the sensitivity of the traditional SPR structure, the sensitivity of our structure is increased by more than 2 orders, which theoretically indicates that the proposed configuration can be applied to the field of high-sensitivity sensors in the future.

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Section: Introductionmentioning

confidence: 99%

Giant Goos–Hänchen shifts of waveguide coupled long-range surface plasmon resonance mode

You¹,

Zhu²,

Guo³

et al. 2018

Chinese Phys. B

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“…For graphene on metal substrates, however, the graphene sheet has a significant effect on the reflection but only a small effect on the lateral shifts. 38 In developing optoelectronic devices, the use of graphene as the contact with TMDs has a great dynamic influence on the atomically thin semiconductors, especially under external stimuli such as laser illumination. Experiments have also proven that the opto-electrical properties of TMD/graphene combinations are highly tunable.…”

Section: Introductionmentioning

confidence: 99%

“…It has been shown that the GH shift is dramatically affected by the introduced graphene sheet for TM polarization in graphene-on-dielectric substrates. For graphene on metal substrates, however, the graphene sheet has a significant effect on the reflection but only a small effect on the lateral shifts 38 …”

Section: Introductionmentioning

confidence: 99%

Sandwich heterostructure of transition metal dichalcogenide/graphene as tunable lateral reflection shifter

Zoghi

2023

J. Nanophoton.

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.The advent of nanotechnology has led to the inevitable need for miniaturization in optoelectronic devices. To achieve this goal, materials with low thickness, conductivity, and transparency, as well as a larger active area, must be developed. Experiments have proven that the opto-electrical properties of transition metal dichalcogenides (TMD)/graphene combinations are highly tunable. On the other hand, a notable feature of light when reflecting from an interface is its spatial and angular displacements. The “lateral shift” in the incident plane, referred to as the Goos–Hanchen (GH) shift, has garnered significant interest among researchers owing to its extensive range of applications. In our work, an atomically thin TMD/graphene/TMD sandwich heterostructure is proposed, and its spatial and angular GH shifts are investigated. The theoretical analysis includes various TMD materials such as MoSe2, MoS2, WSe2, and WS2. A detailed study of the effects of wavelength, polarization, incident angle, and number of TMD layers in symmetric and asymmetric structures suggests that this hybrid can serve as an ultrathin broadband tunable sensor in optical devices.

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“…Experimentally, it was observed that depositing graphene on dielectric materials can result in a profound effect on GH shifts, which can be either positive or negative. Strikingly this approach allows complete electrostatic control [17,18]. Recently it has been shown that nonlinear surface plasmon resonance in graphene can provide rigorous enhancement and control over GH effect [19,20].…”

Section: Introductionmentioning

confidence: 99%

Goos-Hänchen Shifts in Gapped Graphene subject to External Fields

Mekkaoui¹,

Jellal²,

Bahlouli³

2020

Preprint

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We study Dirac fermions in gapped graphene that are subjected to a magnetic field and a potential barrier harmonically oscillating in time. The tunneling modes inside the gap and the associated Goos-Hnchen (GH) shifts are analytically investigated. We show that the GH shifts in transmission for the central band and the first two sidebands change sign at the Dirac points +l ω (l = 0, ±1). We also find that the GH shifts can be either negative or positive and becomes zero at transmission resonances.

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Comparison of Goos–Hänchen shifts of the reflected beam from graphene on dielectrics and metals

Cited by 14 publications

References 42 publications

Giant Goos–Hänchen shifts of waveguide coupled long-range surface plasmon resonance mode

Giant Goos–Hänchen shifts of waveguide coupled long-range surface plasmon resonance mode

Sandwich heterostructure of transition metal dichalcogenide/graphene as tunable lateral reflection shifter

Goos-Hänchen Shifts in Gapped Graphene subject to External Fields

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