Edge mode graphene plasmons based all-optical logic gates

Li, Xiao Bing; Lu, Wei; Wang, Jian; Hu, Jun; Liu, Zhen Guo; Huang, Bao Hu; Chen, Hao

doi:10.1016/j.photonics.2018.10.005

Cited by 5 publications

(2 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2004, Novoselov et al introduced the first twodimensional (2D) material called 'graphene' to the world of quantum mechanics, which exhibits unique optical properties like zero-overlap semimetal, high electron conductivity [18][19][20]. Graphene has been exploited in many applications because of its unique optical properties [21][22][23][24][25]; for example, optical switches [26][27][28], logical gates [29], modulators [30], antennas [31,32], filters [22], and sensors [33,34].…”

Section: Introductionmentioning

confidence: 99%

“…Controlling light with light is the key to fast optical processing. Some linear applications have been introduced for all-optical switches by taking advantage of the interface effect of GSPPs [27], thermo-optical all-optical switches [51], and the iso-frequency curve of graphene dielectric metamaterials [26]. However, most studies on the design of all-optical switches are based on nonlinear optical properties like crossphase modulation (XPM) or self-phase modulation (SPM) [15,28,52].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Low power third harmonic generation and all-optical switching by graphene surface plasmons

Ghazialsharif¹,

Fakhar²,

Abrishamian³

2019

J. Opt.

View full text Add to dashboard Cite

In this study, we aimed at optimizing the nonlinear properties of the guiding structure of graphene surface plasmon polaritons. The structure is a graphene–metal hybrid waveguide with applicable mode confinement. Focusing electromagnetic power in the graphene sheet improves the harmonic conversion efficiency (0.2% (−27 dB)) and high self-phase modulation. The third harmonic generation phase-matching condition was satisfied in three-dimensional simulations for longer harmonic generation length. Low loss performance is vital for devices that operate in the terahertz regime (0.3–30 THz), because of the low efficiency offered by the available terahertz pulse generation methods. In this study, low loss propagation was achieved by engineering the chemical potential of graphene. Finally, a frequency-selective all-optical switch was designed by placing a subwavelength resonator in the waveguide. Self-phase modulation enabled optical control of the frequency-selective switch.

show abstract