Mylnikov V Yu, Rafailov E U, Sokolovskii G S
Opt Express. 2020 Nov 9;28(23):33900-33910. doi: 10.1364/OE.404283.
We demonstrate that the conical refraction of the input elegant Laguerre-Gaussian beams can be effectively described through generalized Bessel-Gaussian light beams. We performed numerical simulations and show good agreement between the exact solution and our proposed Bessel-Gaussian approximation model. Physical clarity of the proposed model has allowed us to explain the transition of the classical double-ring pattern of conical refraction in the Lloyd plane into a multi-ring one and predict new phenomenon such as the Raman spot shift and dependence of the conical refraction ring radius on the value of the orbital angular momentum.
我们证明，通过广义贝塞尔 - 高斯光束可以有效地描述输入的优雅拉盖尔 - 高斯光束的圆锥折射。我们进行了数值模拟，并表明精确解与我们提出的贝塞尔 - 高斯近似模型之间具有良好的一致性。所提出模型的物理清晰性使我们能够解释劳埃德平面中圆锥折射的经典双环图案向多环图案的转变，并预测新现象，如拉曼光斑位移以及圆锥折射环半径对轨道角动量值的依赖性。
