Sorting orbital angular momentum of photons through a multi-ring azimuthal-quadratic phase

Autor:	Yanlai Lv, Zijun Shang, Shiyao Fu, Lei Huang, Liliang Gao, Chunqing Gao
Rok vydání:	2022
Předmět:	Atomic and Molecular Physics and Optics
Zdroj:	Optics Letters. 47:5032
ISSN:	1539-4794 0146-9592
DOI:	10.1364/ol.465593
Popis:	Beams carrying orbital angular momentum (OAM) already play significant roles in many domains. Here we propose a practical design of an OAM beam splitter based on a single phase-only multi-ring azimuthal-quadratic diffraction optical element that can sort different OAM components into various spatial positions, and OAM state probing is also achieved. The performance is demonstrated through proof-of-principle experiments and shows favorable results. Furthermore, the intensity proportion of each OAM component, namely the OAM spectrum, is also diagnosed. This work offers high applicability and practicability for the recognition and separation of photon OAM, and thus paves the way for many advanced scenarios such as quantum communication, holographic encryption, and remote sensing.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b992fc1f4b7ca6fcb4509f8849b65c62 https://doi.org/10.1364/ol.465593 Zobrazit plný text záznamu