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Updated: Jul 22, 2025

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Microfluidic Imaging Flow Cytometry by Asymmetric-detection Time-stretch Optical Microscopy ATOM
Published on: June 28, 2017
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Visible wavelength time-stretch optical coherence tomography
Optics Express
|July 21, 2023
Summary
A new visible-light photonic time-stretch optical coherence tomography (OCT) system achieves record speeds. This breakthrough in time-stretch OCT imaging enables faster anatomical and functional analysis of biological tissues.
Area of Science:
- Biomedical optics
- Optical imaging
- Photonics
Background:
- Visible light optical coherence tomography (OCT) is a developing non-invasive imaging technique for biological tissues.
- Photonic time-stretch (PTS) enables real-time Fourier transformation for high-speed OCT.
Purpose of the Study:
- To propose and demonstrate a working prototype of a visible-light photonic time-stretch OCT (TS-OCT) system.
- To expand the applications of TS-OCT by operating in the visible wavelength region.
Main Methods:
- Experimental demonstration of a novel visible-light TS-OCT system.
- Utilizing photonic time-stretch for ultrafast optical signal processing and real-time Fourier transformation.
Main Results:
- Achieved an unprecedented throughput of 100 giga voxels/second.
- Reached an OCT volume rate of 4,000 volumes/second.
- Successfully implemented TS-OCT in the visible light spectrum.
Conclusions:
- The developed visible-light TS-OCT system offers significant advancements in imaging speed.
- This technology has the potential to broaden the scope of TS-OCT applications in biological imaging.
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