论文标题
优化方法是消除使用Zemax的激光束传输的锥形声镜的影响
Optimization method to eliminate the influence of the conical acoustic lens on the transmission of laser beam using ZEMAX
论文作者
论文摘要
通过使用光学设计软件Zemax，基于几何光学和主要畸变理论，讨论和提出了直接镜像的最佳设计方法，从而消除了锥形凹面隔音透镜对光束传输的影响。校准透镜优化之前和之后的透镜系统成像通过数值模拟模拟：从模拟结果中，在校准镜进行优化后，系统的球形像差大大降低。在0度视野下，该点的均方根半径从993.842微米变为8.091微米，几何半径从1000.98微米变为11.087微米； MTF曲线明显改善，截止频率增加了近15倍，并且在0度视野下，子午线方向和矢状方向的MTF值在0.9和1之间；提议的准镜的优化方法对于研究较大的田间光声显微镜成像系统的研究具有重要的理论指导意义。
By using the optical design software Zemax, on the basis of geometric optics and primary aberration theory, the optimal design method of collimating mirror is discussed and proposed, which eliminates the influence of conical concave acoustic lens on beam transmission. The lens system imaging before and after the optimization of the calibration lens is simulated by numerical simulation: from the simulation results, after the calibration mirror is optimized, the spherical aberration of the system is greatly reduced,. The root mean square radius of the spot under the 0 degree field of view changes from 993.842 micrometers to 8.091 micrometers, and the geometric radius changes from 1000.98 micrometers to 11.087 micrometers; the MTF curve is obviously improved, the cut-off frequency is increased by nearly 15 times, and the MTF value of the meridian direction and sagittal direction under the 0 degree field of view are between 0.9 and 1; The proposed optimization method of the collimating mirror has important theoretical guiding significance for the study of the large depth of field photoacoustic microscopy imaging system.
