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Related Experiment Video

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Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo

Simultaneous Brightfield, Fluorescence, and Optical Coherence Tomographic Imaging of Contracting Cardiac Trabeculae Ex Vivo

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High-throughput optical coherence tomography at 800 nm.

Keisuke Goda¹, Ali Fard, Omer Malik

¹Department of Electrical Engineering, University of California, Los Angeles, CA 90095, USA. goda@ee.ucla.edu

|October 6, 2012

Summary

This summary is machine-generated.

We developed high-throughput optical coherence tomography (OCT) with a 1,000x faster scan rate. This breakthrough enables real-time observation of laser ablation dynamics for industrial applications.

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Area of Science:

Optical Engineering
Biomedical Imaging
Laser Technology

Background:

Conventional optical coherence tomography (OCT) systems face limitations in axial scan rate, hindering real-time dynamic process observation.
The 800 nm spectral range is crucial for various industrial and biomedical applications, but speed limitations persist.

Purpose of the Study:

To develop a high-throughput optical coherence tomography (OCT) system with significantly enhanced axial scan rates.
To demonstrate the capability of the novel OCT system for real-time observation of dynamic processes, such as laser ablation.

Main Methods:

Employed photonic time-stretch technology to chirp a pulse train, creating a passive swept source for OCT.
Achieved a record axial scan rate of 90.9 MHz, representing a 1,000-fold increase over conventional OCT.
Utilized the high-throughput OCT system for real-time imaging of laser ablation dynamics.

Main Results:

Demonstrated a record axial scan rate of 90.9 MHz using the photonic time-stretch based swept source.
Successfully captured real-time dynamics of laser ablation, showcasing the system's utility.
Achieved a 1,000 times higher axial scan rate compared to conventional OCT systems in the 800 nm spectral range.

Conclusions:

The developed high-throughput OCT system offers unprecedented speed for optical imaging.
This technology is well-suited for industrial applications demanding faster imaging than conventional OCT can provide.
Real-time observation of laser ablation dynamics is now feasible, opening new avenues for process monitoring and control.