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Coherent polarization control of terahertz emission from graphene under excitation of two-color co-circularly polarized laser fields

Version 2 2024-08-01, 14:17
Version 1 2024-08-01, 14:16
Posted on 2024-08-01 - 14:17
Coherent polarization control of terahertz (THz) emission is crucial for applications in the THz field. Here, we demonstrate that the polarization of THz waves emitted from graphene through quantum interference can be coherently controlled by varying the relative phase between the co-circularly polarized laser fields. The polarization state of the THz wave emitted from graphene remains linearly polarized, while its direction can be arbitrarily changed by varying the relative phase. This work not only achieves the coherent polarization control of the THz waves emitted from graphene but also promotes the fundamental research of THz photonics in graphene.

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Optics Letters

AUTHORS (6)

Yuhang He
Yuxuan Chen
Xiangyu La
Chenyin Dai
Tian Zhen
Jianming Dai

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