Reversible switching of electromagnetically induced transparency in phase change metasurfaces

Mao，Libang1; Li，Yang1,2; Li，Guixin2; Zhang，Shuang3; Cao，Tun1

2020-09-01

10.1117/1.AP.2.5.056004

Advanced Photonics   影响因子和分区

2577-5421

Metasurface analogue of the phenomenon of electromagnetically induced transparency (EIT) that is originally observed in atomic gases offers diverse applications for new photonic components such as nonlinear optical units, slow-light devices, and biosensors. The development of functional integrated photonic devices requires an active control of EIT in metasurfaces. We demonstrate a reversible switching of the metasurface-induced transparency in the near-infrared region by incorporating a nonvolatile phase change material, Ge2Sb2Te5, into the metasurface design. This leads to an ultrafast reconfigurable transparency window under an excitation of a nanosecond pulsed laser. The measurement agrees well with both theoretical calculation and finite-difference time-domain numerical simulation. Our work paves the way for dynamic metasurface devices such as reconfigurable slow light and biosensing.

Electromagnetically induced transparency Metasurfaces Phase change material Reconfigurable Surface plasmon resonance

SCI ; EI

英语

其他

International Science and Technology Cooperation Program of China[2015DFG12630] ; LiaoNing Revitalization Talents Program[XLYC1807237]

Optics

Optics

WOS:000648537700009

SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS

20215011312986

Finite difference time domain method ; Infrared devices ; Laser excitation ; Phase change materials ; Photonic devices ; Surface plasmon resonance ; Transparency

Light/Optics:741.1 ; Optical Devices and Systems:741.3 ; Laser Applications:744.9 ; Physical Chemistry:801.4 ; Mathematics:921

2-s2.0-85114515094

Scopus

1.Dalian University of Technology,School of Optoelectronic Engineering and Instrumentation Science,Dalian,China
2.Southern University of Science and Technology,Department of Materials Science and Engineering,Shenzhen,China
3.University of Birmingham,School of Physics and Astronomy,Birmingham,United Kingdom

Mao，Libang,Li，Yang,Li，Guixin,et al. Reversible switching of electromagnetically induced transparency in phase change metasurfaces[J]. Advanced Photonics,2020,2(5).

Mao，Libang,Li，Yang,Li，Guixin,Zhang，Shuang,&Cao，Tun.(2020).Reversible switching of electromagnetically induced transparency in phase change metasurfaces.Advanced Photonics,2(5).

Mao，Libang,et al."Reversible switching of electromagnetically induced transparency in phase change metasurfaces".Advanced Photonics 2.5(2020).