Graphene-based active slow surface plasmon polaritons

Lü, Hua; Zeng, Chao; Zhang, Qiming; Liu, Xueming; Hossain, Muntasir; Reineck, Philipp; Gu, Miṅ

doi:10.1038/srep08443

Cited by 135 publications

(81 citation statements)

References 52 publications

(98 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the simulation, graphene is also assumed to have finite thickness (1 nm ), which is not the actual physical thickness of graphene (about 0.33 nm ). It is shown that as long as the mesh gird is sufficiently small, the difference between results obtained for 1 nm and 0.33 nm is negligible414454.…”

Section: Methodsmentioning

confidence: 95%

A graphene-based Fabry-Pérot spectrometer in mid-infrared region

Wang

Chen

Pan

et al. 2016

Sci Rep

View full text Add to dashboard Cite

Mid-infrared spectroscopy is of great importance in many areas and its integration with thin-film technology can economically enrich the functionalities of many existing devices. In this paper we propose a graphene-based ultra-compact spectrometer (several micrometers in size) that is compatible with complementary metal-oxide-semiconductor (CMOS) processing. The proposed structure uses a monolayer graphene as a mid-infrared surface waveguide, whose optical response is spatially modulated using electric fields to form a Fabry-Pérot cavity. By varying the voltage acting on the cavity, we can control the transmitted wavelength of the spectrometer at room temperature. This design has potential applications in the graphene-silicon-based optoelectronic devices as it offers new possibilities for developing new ultra-compact spectrometers and low-cost hyperspectral imaging sensors in mid-infrared region.

show abstract

Section: Methodsmentioning

confidence: 95%

A graphene-based Fabry-Pérot spectrometer in mid-infrared region

Wang

Chen

Pan

et al. 2016

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Because of the unique electronic band structure that the energy-momentum relation for electrons is liner over a wide range of energies rather than quadratic26, graphene exhibits many exotic optical features including extreme field confinement, low damping losses, and advantageous tunability272829. Additionally, the well-known surface plasmon polaritons (SPPs), sub-wavelength localized electromagnetic waves, are supported by the graphene in the mid-infrared region30313233.…”

mentioning

confidence: 99%

Tunable graphene-based mid-infrared plasmonic wide-angle narrowband perfect absorber

Wang

Zhai

2016

Sci Rep

View full text Add to dashboard Cite

In this paper, the periodic double-layer graphene ribbon arrays placed near a metallic ground plate coated by a dielectric layer are proposed and analyzed by the coupled-mode theory (CMT) to predict the perfect absorption response in the mid-infrared region. Numerical simulations of the finite-difference time-domain (FDTD) method confirm this effect and give the underlying physical origin. The anti-symmetric dipole-dipole coupling mode is supported by the double-layer graphene ribbons and acts as the electrical resonance to suppress the reflection, because of the impedance matching. The transmission from this system is restricted by the ultra-thick metallic ground plate. All incident electromagnetic energy is efficiently confined in the interlayer between graphene ribbons and the metallic plate, and the dramatic narrowband perfect absorption peak with the FWHM (full width at half maximums) of 300 nm hence is achieved. The spectral position of the absorption peak can be dynamically tuned by a small change in the chemical potential of graphene, in addition to varying geometrical parameters of the absorber. Meanwhile, this device exhibits good absorption stability over a wide angle range of incidence around ± 60° at least. Such absorber will benefit the fabrication of mid-infrared nano-photonic devices for optical filtering and storage.

show abstract

“…Generally, a high-reflection coating in FSS is composed of multilayer dielectric mediums with periodic high/low refractive indexs. Recently, a graphene-coated dielectric grating system has been proposed and shown potential in several applications, such as waveguiding [21], active slow graphene plasmons [22] and Bragg reflectors [17]. As presented in the previous study [17], the high Bragg reflection can be realized by alternatively stacking graphene-silicon and graphene-air waveguides.…”

Section: Numerical Simulations and Theoretical Analysismentioning

confidence: 98%

“…4(b), higher chemical potential (or higher Vb) gives rise to the blue shift of Bragg wavelength and higher transmission. The aim of this paper is to analyze traditional FSS structures and their two-dimensional analogies on graphene, which is different to the previous study [22] in which the aim was to control and slow down the group velocity of plasmons. Meanwhile, we adopt the EIM/TMM based model, which has been commonly applied in the design of traditional FSS structures.…”

Section: Numerical Simulations and Theoretical Analysismentioning

confidence: 99%

Two-Dimensional Analogies to Frequency-Selective Surfaces (FSS) on the Graphene Sheet

Zhu

Cryan²,

Gao

et al. 2015

Plasmonics

View full text Add to dashboard Cite

In this paper we propose that two-dimensional analogies to frequency selective surfaces (FSS) can be achieved on graphene surfaces based on transformation optics. The analogies to representative FSS structures, including the anti-reflecting coating (ARC) and the high-reflecting coating (Bragg reflector) have been investigated through both the analytical Effective Index Method (EIM)/Transfer Matrix Method (TMM) and numerical simulations. Both analytical and numerical solutions have shown that the propagation of plasmons on graphene surface with periodic chemical potentials can be an analogy to the interact of incident light with traditional FSS multilayer dielectric media in which the transmission or reflection can be obtained by EIM/TMM. Combined with the tunability of graphene, the transmission or reflection of plasmons can be tuned by adjusting the bias voltage. The proposed structures and theoretical methods may provide new visions for achieving two-dimensional analogies to traditional structures on graphene.

show abstract

Graphene-based active slow surface plasmon polaritons

Cited by 135 publications

References 52 publications

A graphene-based Fabry-Pérot spectrometer in mid-infrared region

A graphene-based Fabry-Pérot spectrometer in mid-infrared region

Tunable graphene-based mid-infrared plasmonic wide-angle narrowband perfect absorber

Two-Dimensional Analogies to Frequency-Selective Surfaces (FSS) on the Graphene Sheet

Contact Info

Product

Resources

About