Measuring high-order optical orbital angular momentum with a hyperbolic gradually changing period pure-phase grating

We present a method to measure the high-order orbital angular momentum (OAM) state of a light beam with a static hyperbolic gradually changing period pure-phase grating (HGCP-PPG). From the number and orientation of the fringes of the Hermite-Gaussian-like diffraction intensity pattern, the OAM stat...

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Veröffentlicht in:	Optics letters 2018-07, Vol.43 (13), p.3076-3079
Hauptverfasser:	Liu, Zhibing, Gao, Shecheng, Xiao, Wenda, Yang, Jishun, Huang, Xincheng, Feng, Yuanhua, Li, Jianping, Liu, Weiping, Li, Zhaohui
Format:	Artikel
Sprache:	eng
Schlagworte:	Angular momentum Diffraction patterns Gaussian beams (optics) Light beams Misalignment
Online-Zugang:	Volltext
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