Survival of the orbital angular momentum of light through an extraordinary optical transmission process in the paraxial approximation | Zendy

Dunzhao Wei | Zendy; Wu Yang | Zendy; Yongmei Wang | Zendy; Dongmei Liu | Zendy; Yunzhi Zhu | Zendy; Dan Wei | Zendy; Yong Zhang | Zendy; Min Xiao | Zendy

Open Access

Survival of the orbital angular momentum of light through an extraordinary optical transmission process in the paraxial approximation

Author(s) -

Dunzhao Wei,

Wu Yang,

Yongmei Wang,

Dongmei Liu,

Yunzhi Zhu,

Dan Wei,

Yong Zhang,

Min Xiao

Publication year - 2016

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.24.012007

Subject(s) - paraxial approximation , optics , angular momentum , physics , extraordinary optical transmission , interferometry , transmission (telecommunications) , orbital angular momentum of light , plasmon , surface plasmon , surface plasmon polariton , total angular momentum quantum number , telecommunications , quantum mechanics , computer science , beam (structure)

We report on the extraordinary optical transmission (EOT) of an orbital angular momentum (OAM) state of light in the paraxial approximation. The OAM state transmits through a subwavelength metal hole array with a square structure, and then is analyzed by using a Mach-Zehnder interferometer. In the experiment, the transmitted light well conserves the OAM information while the transmission efficiency of the OAM mode is much greater than 1 (i.e., EOT works). Further study shows that the OAM mode has no significant influence on the transmission spectrum of the EOT paraxial process under our experimental configuration. Our work can be useful for future plasmon-based OAM devices.

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