Mirau-type full-field optical coherence tomography with switchable partially spatially coherent illumination modes
Journal
Biomedical Optics Express
Journal Volume
12
Journal Issue
5
Pages
2670-2683
Date Issued
2021
Author(s)
Abstract
A crystalline-fiber-based Mirau-type full-field optical coherence tomography (FFOCT) system utilizing two partially coherent illumination modes is presented. Using a diodepumped Ti:sapphire crystalline fiber with a high numerical aperture, spatially-incoherent broadband emission can be generated with high radiance. With two modes of different spatial coherence settings, either deeper penetration depth or higher B-scan rate can be achieved. In a wide-field illumination mode, the system functions like FF-OCT with partially coherent illumination to improve the penetration depth. In a strip-field illumination mode, a compressed field is generated on the sample, and a low-speckle B-scan can be acquired by compounding pixel lines within. ? 2021 Optical Society of America.
Subjects
Sapphire
Tomography
Broadband emission
Crystalline fibers
Full-field optical coherence tomographies
High numerical apertures
Partially coherent illumination
Spatial coherence
Spatially coherent illumination
System functions
Optical tomography
melanin
Article
B scan
coating uniformity
coherent illumination mode
data analysis software
human
illumination
image analysis
image quality
keratinocyte
light related phenomena
measurement accuracy
methodology
microvascular density
mirau type full field optical coherence tomography
normal distribution
numeracy
numerical aperture
optical coherence tomography
optics
pupil
refraction index
scintiscanning
sensitivity analysis
skin
skin penetration
spatial orientation
spectral sensitivity
strip field illumination mode
SDGs
Type
journal article