scholarly journals Deep imaging with 13 µm dual-axis optical coherence tomography and enhanced depth of focus

2021 ◽  
Author(s):  
Evan Jelly ◽  
Yang Zhao ◽  
Kengyeh Chu ◽  
Hillel Price ◽  
Michael Crose ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence ◽  
Depth Of Focus ◽  
Deep Imaging

Endoscopic micro-optical coherence tomography with extended depth of focus using a binary phase spatial filter

2017 ◽  
Vol 42 (3) ◽  
pp. 379 ◽  
Author(s):  
Junyoung Kim ◽  
Jingchao Xing ◽  
Hyeong Soo Nam ◽  
Joon Woo Song ◽  
Jin Won Kim ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Spatial Filter ◽  
Optical Coherence ◽  
Depth Of Focus ◽  
Binary Phase ◽  
Extended Depth Of Focus

Distortion matrix concept for deep imaging in optical coherence tomography

2021 ◽  
Author(s):  
Paul Balondrade ◽  
Victor Barolle ◽  
Amaury Badon ◽  
Ulysse Najar ◽  
Kristina Irsch ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence ◽  
Deep Imaging ◽  
Distortion Matrix

scholarly journals Demonstration of Triband Multi-Focal Imaging with Optical Coherence Tomography

2018 ◽  
Vol 8 (12) ◽  
pp. 2395
Author(s):  
Ahhyun Nam ◽  
Jian Ren ◽  
Brett Bouma ◽  
Benjamin Vakoc
Keyword(s):  
Optical Coherence Tomography ◽  
Chromatic Aberration ◽  
Gaussian Beams ◽  
Optical Coherence ◽  
Structural Imaging ◽  
Depth Of Focus ◽  
Swept Source ◽  
Data Merging ◽  
Spectral Bands ◽  
Merging Algorithms

We demonstrate an extended depth of focus optical coherence tomography (OCT) system based on the use of chromatic aberration to create displaced focal planes in the sample. The system uses a wavelength-swept source tuning over three spectral bands and three separate interferometers, each of which interfaces to a single illumination/collection fiber. The resulting three imaged volumes are merged in post-processing to generate an image with a larger depth of focus than is obtained from each band individually. The improvements are demonstrated in structural imaging of a porous phantom and a lipid-cleared murine brain, and by angiographic imaging of human skin. By using a coaxial approach with Gaussian beams, this approach enables an extended focus with relatively simple microscope optics and data-merging algorithms.

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