Goos-Hänchen shifts around Fano resonances in superconducting photonic crystals embedded with graphene

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2024-11-29 DOI:10.1016/j.optlastec.2024.112186

Hao Ni , Siliu Xu , Fanghua Liu , Fangmei Liu , Miaomiao Zhao , Dong Zhao

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引用次数: 0

Abstract

Lateral Goos-Hänchen (GH) shifts at the Fano resonances are theoretically investigated in superconducting photonic crystals. The photonic system consists of superconductor layer pairs with embedded graphene and a dielectric layer. With an oblique incident light, multiple Fano resonances are realized in the transmission spectrum because of the embedded graphene. Large GH shifts of the reflected light, including positive (Δ_p) and negative (Δ_n) GH shifts, are obtained around the Fano resonances. The GH shifts almost keep stable for different chemical potentials of graphene. By decreasing hydrostatic pressure or incident angle, larger Δ_p and |Δ_n| are achieved and the corresponding frequency has a redshift. By increasing the ambient temperature, Δ_p and |Δ_n| first increase smoothly and then decrease sharply. Overall, Δ_p is more sensitive than Δ_n, while the reflectance corresponding to Δ_n is much larger than that corresponding to Δ_p. Large and tunable GH shifts in our study may have great potential for optical detectors and transducers.

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems