Acta Photonica Sinica, Volume. 47, Issue 11, 1116001(2018)
Electromagnetic Induced Transparency Based on All-dielectric Metasurface
Classical analogy of electromagnetically induced transparency-like effect was demonstrated by a all-dielectric metasurface structure based on TiO2, which composed of two cross perpendicular dielectric bars and four dielectric bricks. Under the excitation of incident electromagnetic field, electric Mie resonance, which is directly excited by the incident electromagnetic field in the dielectric bar, can excite the magnetic Mie resonance in the dielectric bricks by the interaction of each other, and then produce the destructive interference between the resonant modes, thus the phenomenon of electromagnetic induced transparency occurs. By using the simulation software and the "two oscillators" coupled model, the simulation calculation and quantitative analysis of the electromagnetic induced transparency effect were both carried out. Results show that a transparent window with a transmittance of nearly 96% is generated at 0.552 THz under the normal incidence of electromagnetic wave. Owing to its C4 rotation symmetric and multiple dark mode resonant elements of the proposed structure, the induced transparency effect is characterized by a broadband transparency window and insensitive to the incident electric field polarization.
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HU Sen, LIU Dan1, YANG He-lin. Electromagnetic Induced Transparency Based on All-dielectric Metasurface[J]. Acta Photonica Sinica, 2018, 47(11): 1116001
Received: Apr. 16, 2018
Accepted: --
Published Online: Dec. 17, 2018
The Author Email: Sen HU (husen8209@126.com)