| Literature DB >> 24353894 |
Q Q Zhang1, J G Wang1, M W Wang1, J Bu1, S W Zhu2, R Wang3, Bruce Z Gao3, X-C Yuan1.
Abstract
In optical coherence tomography (OCT) systems, there is a trade-off between the depth of focus (DOF) and lateral resolution when conventional lenses are used. We propose a new method that employs a modified fractal generalized zone plate (MFraGZP) combined with a conventional lens to improve the trade-off effect, with an extended DOF of about 2.5 mm (14 times larger) while the lateral resolution is maintained at ~9.5 μm. As an example, images of the calibration microspheres are obtained and demonstrated with the extended DOF in a spectral domain OCT system.Entities:
Keywords: depth of focus; fractal zone plate; optical coherence tomography
Year: 2011 PMID: 24353894 PMCID: PMC3864818 DOI: 10.1088/2040-8978/13/5/055301
Source DB: PubMed Journal: J Opt ISSN: 2040-8978 Impact factor: 2.516