1 June 2007 Spot size and depth of focus in optical data storage system
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Optical Engineering, 46(6), 065201 (2007). doi:10.1117/1.2744063
Abstract
Different definitions of spot size and depth of focus in optical data storage systems are analyzed and compared numerically. It appears that the differences between the definitions become more significant as the numerical aperture of the optical system increases. The relationship between spherical aberration and axial intensity is studied, and a general definition of the depth of focus based on this analysis is proposed.
Haifeng Wang, Gaoqiang Yuan, Weilian Tan, Luping Shi, Chong Tow Chong, "Spot size and depth of focus in optical data storage system," Optical Engineering 46(6), 065201 (1 June 2007). https://doi.org/10.1117/1.2744063
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