Switchable coding metasurface for flexible manipulation of terahertz wave based on Dirac semimetal

Huang, Jingyun; Yin, Xiaona; Xu, Man; Meng, Long; Zhang, Yuping; Zhang, Huiyun

doi:10.1016/j.rinp.2022.105204

Cited by 14 publications

(2 citation statements)

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“…In order to solve these issues, a switchable coding metasurface was developed to enable dynamic beam steering based on a 3D DSM in the THz frequency range. 165 It was shown that the suggested metamaterials unit cell's relative phase delay may be actively controlled by altering the Fermi level (E F ) of the 3D DSM. By varying the E F value of the 3D DSM for the 1-bit coding metasurface, the coding units with "0" and "1" states may be turned on/off in the frequency range from 1.46 to 2 THz.…”

Section: Some Other Photonics Of CD 3 Asmentioning

confidence: 99%

“…Additionally, fabricating graphene-based metasurfaces is challenging. In order to solve these issues, a switchable coding metasurface was developed to enable dynamic beam steering based on a 3D DSM in the THz frequency range 165 . It was shown that the suggested metamaterials unit cell’s relative phase delay may be actively controlled by altering the Fermi level (EF) of the 3D DSM.…”

Section: Photonics With 3d Dsm Cd3as2mentioning

confidence: 99%

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Recent advances in photonics of three-dimensional Dirac semimetal Cd3As2

et al. 2022

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Due to their unusual features in condensed matter physics and their applicability in optical and optoelectronic applications, three-dimensional Dirac semimetals (3D DSMs) have garnered substantial interest in recent years. In contrast to monolayer graphene, 3D DSM exhibits linear band dispersion despite its macroscopic thickness. Therefore, being a bulk material, it is easy to make nanostructures with 3D DSM, just as one normally does with metals such as gold and silver. Among 3D DSMs, cadmium arsenide (Cd 3 As 2 ) is quite famous and considered an excellent 3D DSM due to its chemical stability in air and extraordinary optical response. In this review, advances in 3D DSM Cd 3 As 2 fabrication techniques and recent progress in the photonics of 3D DSM Cd 3 As 2 are given and briefly reviewed. Various photonic features, including linear and nonlinear plasmonics, optical absorption, optical harmonic generation, and ultrafast dynamics, have been explored in detail. It is expected that Cd 3 As 2 would share an excellent tunable photonic response like graphene. We envision that this article may serve as a concise overview of the recent progress of photonics in 3D DSM Cd 3 As 2 and provides a compact reference for young researchers.

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Section: Some Other Photonics Of CD 3 Asmentioning

confidence: 99%