Polaritons in low-dimensional materials and their coupling characteristics
نویسندگان
چکیده
Polaritons, i.e. new collective modes formed by the strong coupling between light and electrons, phonons, excitons, or magnons in matter, have recently received extensive attention. Polaritons low-dimensional materials exhibit spatial confinement, high quality factor, gate-tunability. Typical examples include gate-tunable graphene surface plasmon polaritons, high-quality hyperbolic phonon polaritons hexagonal boron nitride, topological <i>α</i>-MoO<sub>3,</sub> one-dimensional Luttinger-liquid carbon nanotubes. These unique properties make an excellent candidate for future nano-photonics devices. Further, these can significantly interact with each other, resulting a variety of polariton-polariton phenomena, greatly expanding their applications. In this review paper, we first introduce scanning near-field optical microscopy, technique used to probe materials, then give brief introduction basic polaritons. Next, discuss detail behavior various Finally, potential applications are proposed.
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ژورنال
عنوان ژورنال: Chinese Physics
سال: 2022
ISSN: ['1000-3290']
DOI: https://doi.org/10.7498/aps.71.20220272