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一维和二维环阵列由双折射与形折射一起形成:实验性调查

Weilin Cao, Bin Xie, Dawei Zhang

|September 23, 2025

概括

研究人员使用双折射和形折射晶体创建了可调节的环束阵列. 这种光束造型技术允许灵活形成线性,矩形和平行方形环形图案.

科学领域:

光学和光子学在光学和光子学.
激光物理激光物理
材料科学材料科学材料科学

背景情况:

双断层 (BR) 晶体和形折射 (CR) 现象是先进光束成型的关键.
之前的工作建立了使用级联式BR和CR晶体形成环束阵列的理论框架.
控制光极化和晶体方向对于操纵光束图案至关重要.

研究的目的:

实验验证可调节环束阵列的形成,使用级联双折和形折射晶体.
研究CR环阵列的转换成不同的配置 (平行,线性,矩形).
为了证明数值模拟和实验结果之间的一致性,用于光环阵列生成.

主要方法:

通过两个BR晶体 (m=2) 和一个CR晶体进行循环极化高斯束传播的数值模拟.
使用级联式YVO4 (BR) 和KGW (CR) 晶体的实验设置.
调整晶体方向和半波板旋转以控制阵列几何.

主要成果:

在焦平面上成功形成了一个由四个CR环组成的平行直线阵列.
平行线数组被可控地转换成线性和矩形CR环数组.
实验观察与理论模拟的预测非常相匹配.

结论:

实验研究证实了使用级联BR和CR晶体生成可调节CR环阵列的可行性.
展示的方法可以精确控制光环阵列的几何形状.
这项工作促进了光学中光束成形技术的理解和应用.

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