Generation of optical needle and dark channel by tight focusing of radially polarized circular partially coherent beams

• Autorzy: Lin Huichuan , Li Yan , Zhou Xiaoming , Wang Juanjuan , Chen Ziyang , Pu Jixiong

Identyfikatory

DOI

10.37190/oa200206

• Języki publikacji: EN

Abstrakty

EN

We theoretically investigate the tight focusing of radially polarized circular partially coherent(RPCPC) beams through a high numerical aperture objective. The sub-wavelength super-long optical needle and dark channel can be obtained near the focus, by engineering the source coherent length of the incident RPCPC beams. The length of the optical needle and the dark channel can be adjusted, and the obtained maximal lengths of the optical needle and the dark channel are both 22λ.The full width at half maximum of the optical needle and the dark channel are 0.6λ and 0.48λ, respectively.

Słowa kluczowe

EN

tight focusing; radially polarized; circular partially coherent; optical needle; dark channel

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2020
• Tom: Vol. 50, nr 2
• Strony: 229--240
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Lin Huichuan

• Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
• College of Physics and Information Engineering, Minnan Normal University, Zhangzhou 363000, China

autor

Li Yan

• College of Physics and Information Engineering, Minnan Normal University, Zhangzhou 363000, China

autor

Zhou Xiaoming

• Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China

autor

Wang Juanjuan

• College of Information and Electronic Engineering, Liming Vocational University, Quanzhou 362000, China

autor

Chen Ziyang

• Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China

autor

Pu Jixiong

• Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).