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Related Experiment Video

Updated: Jun 22, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

High-speed linear detection time domain optical coherence tomography with reflective grating-generated spatial

Yuuki Watanabe1, Fumitoshi Sajima, Toshiki Itagaki

  • 1Faculty of Engineering, Yamagata University, 4-3-16 Johnan, Yonezawa, Yamagata, 992-8510, Japan. ywata@yz.yamagata-u.ac.jp

Applied Optics
|June 23, 2009
PubMed
Summary
This summary is machine-generated.

We created a fast optical coherence tomography (OCT) method using a line scan camera for high-speed imaging. This technique achieves 94 frames/s for real-time cross-sectional visualization of biological tissues.

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Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography
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Last Updated: Jun 22, 2026

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Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy (oSLO) and Optical Coherence Tomography (OCT)
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Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

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Area of Science:

  • Biomedical Optics
  • Medical Imaging Technology
  • Ophthalmic Imaging

Background:

  • Time-domain optical coherence tomography (OCT) is crucial for non-invasive imaging.
  • Existing OCT systems face limitations in speed and real-time imaging capabilities.
  • Advancements in camera technology offer potential for faster OCT acquisition.

Purpose of the Study:

  • To develop a high-speed linear detection time-domain OCT system.
  • To enhance image acquisition speed for real-time cross-sectional imaging.
  • To achieve high sensitivity in OCT imaging for in vivo applications.

Main Methods:

  • Implemented a linear detection OCT technique utilizing a reflective grating for spatial optical delay.
  • Employed an InGaAs line scan camera (512 pixels) operating at 47,000 lines/s.
  • Utilized postprocessing with a Hilbert transform to enhance image quality.

Main Results:

  • Achieved cross-sectional image display with 500 lateral pixels at 94 frames/s.
  • Demonstrated successful in vivo imaging of a human finger.
  • Obtained a high sensitivity of 93 dB in the developed OCT system.

Conclusions:

  • The developed high-speed linear detection OCT technique enables rapid, real-time cross-sectional imaging.
  • The system demonstrates high sensitivity suitable for in vivo biomedical applications.
  • This advancement offers potential for improved diagnostic capabilities in medical imaging.