• 专利标题:   Electromagnetically induced transparent super-surface device used for modulator, has graphene cross structure whose plasmon resonance is excited and transparency peak appears between two plasmon resonance frequencies, electromagnetically induced transparency effect.
  • 专利号:   CN114924430-A
  • 发明人:   YUAN L, XU J, SHI X, HAN W, ZHAO W, WANG X, LI R, CHEN M
  • 专利权人:   UNIV GUILIN ELECTRONIC TECHNOLOGY
  • 国际专利分类:   G02F001/00, G02F001/01, G02F001/017
  • 专利详细信息:   CN114924430-A 19 Aug 2022 G02F-001/00 202272 Chinese
  • 申请详细信息:   CN114924430-A CN10526714 16 May 2022
  • 优先权号:   CN10526714

▎ 摘  要

NOVELTY - The device has an array structure of the device in the x and y directions. The basic unit structural features are composed of silicon dioxide (1), large graphene cross structure (2) and small graphene cross structure (3). The arbitrarily polarized incident light is perpendicular to the structure. The plasmon resonance of the two groups of graphene cross structures is excited. A transparency peak appears between the two plasmon resonance frequencies, the electromagnetically induced transparency effect. The length I1=5μm and the width w1=0.8μm of the large graphene cross is provided. The length of the small graphene cross is I2=4μm and the width w2=0.8μm is provided. The large graphene cross and the small graphene cross have similar plasmon resonance frequencies. The silica thickness is 0.5 μm. USE - Polarization-independent electromagnetically induced transparent metasurface device for modulator, slow light device, optical switch and integrated optical equipment. ADVANTAGE - The electromagnetic-induced transparent super-surface device can realize electromagnetic induction transparent effect, and can dynamically adjust the transparent peak and group time delay. The device can realize polarization independent electromagnetic induction transparency. The need to change the device is avoided when the polarization mode of the incident wave is changed. The preparation technology is mature, more easy to manufacture. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a three-dimensional structure for implementing a polarization independent electromagnetically induced transparent super-surface device. 1Silicon dioxide 2Large graphene cross structure 3Small graphene cross structure