Corpus ID: 235458404

Gate-tunable Veselago Interference in a Bipolar Graphene Microcavity

@inproceedings{Zhang2021GatetunableVI,
  title={Gate-tunable Veselago Interference in a Bipolar Graphene Microcavity},
  author={Xi Zhang and W. Ren and Elliot Bell and Ziyan Zhu and Kenji Watanabe and T. Taniguchi and E. Kaxiras and M. Luskin and Ke Wang},
  year={2021}
}
The relativistic charge carriers in monolayer graphene can be manipulated in manners akin to conventional optics (electron-optics): angle-dependent Klein tunneling collimates an electron beam (analogous to a laser), while a Veselago refraction process focuses it (analogous to an optical lens). Both processes have been previously investigated, but the collimation and focusing efficiency have been reported to be relatively low even in state-of-the-art ballistic pn-junction devices. These… Expand
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Figures from this paper

A three-dimensional chiral Veselago lens
The effect by which light focuses upon entering a medium with a negative refractive index, known as Veselago lensing, may enable optical imaging below the diffraction limit. Similarly, focusingExpand

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