Related Experiment Video
Updated: Jan 30, 2026
11:21
Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography
Published on: January 15, 2013
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Mid-infrared Fourier-domain optical coherence tomography with a pyroelectric linear array
Optics Express
|January 16, 2019
Summary
Researchers developed a new mid-infrared Fourier-domain optical coherence tomography system using a supercontinuum source and a low-cost detector. This advancement enables non-destructive testing for industrial and medical applications.
Area of Science:
- Optics and Photonics
- Materials Science
- Non-Destructive Testing
Background:
- Mid-infrared (MIR) optical technology is advancing rapidly due to new high-power, coherent sources.
- MIR non-destructive testing (NDT) offers significant potential for industrial and medical fields.
- Challenges remain in MIR optics, including technical hurdles and high costs.
Purpose of the Study:
- To develop and demonstrate the first MIR Fourier-domain optical coherence tomography (FD-OCT) system.
- To utilize a supercontinuum source and a cost-effective pyroelectric detector for MIR imaging.
- To operate the system in the 4 μm spectral region for enhanced material penetration and detection.
Main Methods:
- Development of a novel MIR FD-OCT system.
- Integration of a supercontinuum light source for broad spectral bandwidth in the MIR.
- Utilisation of a low-cost pyroelectric detector for signal acquisition.
- System calibration and performance evaluation in the 4 μm spectral range.
Main Results:
- Successful implementation of the first MIR FD-OCT system operating around 4 μm.
- Demonstration of effective non-destructive detection of embedded microstructures in ceramic materials.
- Visualization of subsurface layers in oil paint, showcasing NDT capabilities.
- Validation of the system's performance with cost-effective components.
Conclusions:
- The developed MIR FD-OCT system provides a promising low-cost solution for NDT.
- This technology can be applied to diverse materials, including ceramics and painted surfaces.
- Further development could expand applications in industrial inspection and biomedical imaging.
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