Abstract

In this Letter, we investigate the nanofocusing of hybrid plasmons-phonons-polaritons (SPP-HPhPs) in a graphene-hexagonal boron nitride (h-BN) heterostructure with a graphene coating on a tapered h-BN slab. Compared with the hyperbolic phonon polariton (HPhP) in h-BN, the hybrid SPP-HPhP in a heterostructure exhibits much smaller losses, which is validated through both analytical and numerical methods. Furthermore, the thickness dependent dispersions of a hybrid SPP-HPhP enable the tapered heterostructure to achieve a function of focusing electromagnetic waves. Compared with the tapered h-BN slab, the field enhancement in a tapered heterostructure is improved evidently with a maximum enhancement of the amplitude of normalized electric field over 60. This nanofocusing scheme may have potential in applications such as nonlinear optics.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Plasmon-phonon-polariton modes and field enhancement in graphene-coated hexagon boron nitride nanowire pairs

Shen Ye, Zixiao Wang, Chunran Sun, Changbin Dong, Buzheng Wei, Beilei Wu, and Shuisheng Jian
Opt. Express 26(18) 23854-23867 (2018)

Hybrid plasmon–phonon polariton bands in graphene–hexagonal boron nitride metamaterials [Invited]

Hodjat Hajian, Amir Ghobadi, Sina Abedini Dereshgi, Bayram Butun, and Ekmel Ozbay
J. Opt. Soc. Am. B 34(7) D29-D35 (2017)

Hybrid nonlinear surface-phonon-plasmon-polaritons at the interface of nolinear medium and graphene-covered hexagonal boron nitride crystal

Yuexiang Wu, Leyong Jiang, Hailin Xu, Xiaoyu Dai, Yuanjiang Xiang, and Dianyuan Fan
Opt. Express 24(3) 2109-2124 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription