Huang Xiaojing, Dubra Alfredo
Opt Express. 2021 Mar 29;29(7):10346-10363. doi: 10.1364/OE.414405.
The rapid oscillation of galvanometric resonant optical scanners introduces linear astigmatism that degrades transverse resolution, and in confocal systems, also reduces signal [V. Akondi et al., Optica 7, 1506, 2020]. Here, we demonstrate correction of this aberration by tilting reflective or refractive optical elements for a single vergence or a vergence range, with and without the use of an adaptive wavefront corrector such as a deformable mirror. The approach, based on nodal aberration theory, can generate any desired third order aberration that results from tilting or decentering optical surfaces.
检流计共振光学扫描仪的快速振荡会引入线性像散，从而降低横向分辨率，而在共聚焦系统中，还会降低信号强度[V. Akondi等人，《Optica》7，1506，2020]。在此，我们展示了通过倾斜反射或折射光学元件来校正这种像差，适用于单个聚散度或聚散度范围，无论是否使用诸如可变形镜之类的自适应波前校正器。该方法基于节点像差理论，可以生成因光学表面倾斜或偏心而产生的任何所需三阶像差。
