Investigation of the SQUBIC phase mask design for depth-invariant widefield microscopy point-spread function engineering
Abstract
Point-spread function engineering (PSF), achieved by placing a phase mask at the pupil plane of the imaging lens to encode the wavefront emerging from an imaging system, can be employed to reduce the impact of spherical aberration (SA) in 3D microscopy. In a previous study, the effect of SA on a confocal scanning microscope using a squared cubic phase mask (SQUBIC) was investigated using computer simulations. Here the effect of the SQUBIC design parameter on the insensitivity of the engineered PSF to SA is investigated using a metric based on the second-order moment of the axial variability of the PSF. We show that it is possible to find the optimum SQUBIC for the insensitization to SA. © 2014 SPIE.
Publication Title
Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Recommended Citation
Doblas, A., King, S., Patwary, N., Saavedra, G., Martínez-Corral, M., & Preza, C. (2014). Investigation of the SQUBIC phase mask design for depth-invariant widefield microscopy point-spread function engineering. Progress in Biomedical Optics and Imaging - Proceedings of SPIE https://doi.org/10.1117/12.2038610
