Institute of Optics, Information and Photonics, University of Erlangen, Erlangen, Germany.
Opt Lett. 2010 Mar 1;35(5):712-4. doi: 10.1364/OL.35.000712.
A new common-path and in-line point-diffraction interferometer for quantitative phase microscopy is proposed. The interferometer is constructed by introducing a grating pair into the point-diffraction interferometer, thus forming a common-path and in-line configuration for object and reference waves. Achromatic phase shifting is implemented by linearly moving one of the two gratings in its grating vector direction. The feasibility of the proposed configuration is demonstrated by theoretical analysis and experiments.
一种用于定量相显微镜的新型共路和在线点衍射干涉仪被提出。该干涉仪通过在点衍射干涉仪中引入一对光栅来构建，从而为物波和参考波形成共路和在线配置。通过沿光栅矢量方向线性移动两个光栅中的一个来实现消色差相移。该配置的可行性通过理论分析和实验得到了验证。
