Loiko Yu V, Turpin A, Sokolovskii G S, Rafailov E U
Opt Lett. 2020 Mar 15;45(6):1317-1320. doi: 10.1364/OL.387182.
The fundamental mode of a conical refraction resonator, i.e., an optical cavity where light experiences conical refraction (CR) from a biaxial crystal, is experimentally demonstrated in the plano-concave cavity configuration. We have discovered that the fundamental CR mode is characterized by the polarization and intensity structures of CR beams between the plane mirror and CR crystal, and it resembles the fundamental Gaussian mode with homogeneous polarization between the crystal and concave mirror. We theoretically explained this fundamental CR mode using the dual cone model and symmetry of the CR phenomenon and confirmed this explanation by numerical simulations.
在平凹腔配置中，通过实验证明了锥形折射谐振器的基模，即光在双轴晶体中经历锥形折射（CR）的光学腔。我们发现，基模CR模式的特征在于平面镜和CR晶体之间CR光束的偏振和强度结构，并且它类似于晶体和凹面镜之间具有均匀偏振的基高斯模式。我们使用双锥模型和CR现象的对称性从理论上解释了这种基模CR模式，并通过数值模拟证实了这一解释。
