• Advanced Photonics
  • Vol. 3, Issue 5, 059901 (2021)


The article provides information about the image on the cover of Advanced Photonics, Volume 3, Issue 5.

The image on the cover for Advanced Photonics Volume 3 Issue 5 depicts a novel spintronic-metasurface terahertz emitter, developed by researchers from Fudan University. Composed of alternating magnetic heterostructures, the emitter allows efficient, flexible generation and manipulation of chiral terahertz waves. Terahertz radiation is generated by exciting the emitter with laser pulses under an oriented external magnetic field. Transverse anisotropic confinement of the laser-induced charge currents imposed by the metasurface structure leads to chiral terahertz-wave emission.

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. About the cover: Advanced Photonics Volume 3, Issue 5[J]. Advanced Photonics, 2021, 3(5): 059901
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Published Online: Nov. 1, 2021
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