You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
4 March 2014Design of pupil filter for extended depth of focus and lateral superresolution in optical coherence tomography
A seven-zone pupil filter which can extend the depth of focus (DOF) and provide lateral super resolution in Optical
Coherence Tomography is designed. Both amplitude and phase of the transmitted light beam are modified in each zone.
The scalar diffraction theory is used to optimize the zone parameters. A broadband source spectrum and a Gaussian
beam profile has been taken into account for the design of this filter. Several filters have been reported to extend the
depth of focus (DOF) and improve the resolution but they take the assumption that a monochromatic and uniform light
beam is used. With the proposed filter the DOF in OCT can be extended by 14 times while the lateral resolution can be
improved by a factor of 1.47 and maintained constant within this DOF.
Evgenia Bousi,Stelios Timotheou, andCostas Pitris
"Design of pupil filter for extended depth of focus and lateral superresolution in optical coherence tomography", Proc. SPIE 8934, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVIII, 893435 (4 March 2014); https://doi.org/10.1117/12.2041967
The alert did not successfully save. Please try again later.
Evgenia Bousi, Stelios Timotheou, Costas Pitris, "Design of pupil filter for extended depth of focus and lateral superresolution in optical coherence tomography," Proc. SPIE 8934, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XVIII, 893435 (4 March 2014); https://doi.org/10.1117/12.2041967