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Angular Momentum Superposition Beams-Based Interferometer

delete2025-01-24
delete1
PRE
AI
H
Huali Lu
王
王鹏 (Peng Wang)
M
Ming Gao
Z
Zhenyu Ma
H
Hui Hao
D
Dongmei Guo
X
Xin Wang
H
Hua Zhao *
H
Hongpu Li *
DOI:10.1002/lpor.202401769delete
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摘要

摘要

En 中文
基于轨道角动量(OAM)光束的干涉仪已在高精度计量学中发现了多种应用。然而,迄今为止报道的大部分应用仅限于1D场景,同时测量多维位移的方法极少被探索。本文首次提出并演示了一种基于角动量叠加光束的干涉仪,其中由旋转和线性位移引起的相位变化分别由包含不同自旋角动量和轨道角动量的角动量叠加(SOAMS)光束独立承载,因此可同时检测。根据所提出的干涉测量方案,实验演示了一种新的相位解调方法,该方法在OAM复谱域中运行,从而能够从捕获的OAM干涉图中精确且高效地提取相位变化信息。作为典型结果,旋转和线性位移被同时且精确地测量,精度分别达到2.89度和16.04 nm。所提出的干涉测量方案及其对应的相位解调方法可能为实現基于OAM光束的多维计量学开辟新途径。
Keyword:
angular momentum superposition beam
multidimensional measurement
orbital-angular-momentum interferometer
phase demodulation
rotational-angle and linear-displacement measurement

期刊

L
Laser and Photonics Reviews
IF:
10
论文数:
3.7K
被引数:
2.1W

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