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Features
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Applications
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Optical coherence tomography (OCT) is a rapidly developing optical imaging method that uses light to obtain images with high resolution (10 - 100 times greater than ultrasound) to depths of 1-3 mm in biological tissues and other materials. Applications include research in biology and medicine and imaging of diseased tissues in situ. OCT also has potential for non-destructive testing of specialized materials such as thermal barrier coatings used on jet engine turbines.
Examples of images obtained with spectral domain OCT at different center wavelengths and resolution. (a) atherosclerotic plaque (b) developing otic structures in an X.lavis tadpole (c) cellular structure in onion.
A proprietary, photonic-crystal fiber light source combined with spectral
domain optical coherence tomography provides a versatile, spectrally agile
instrument. The available spectral bandwidth is greater than needed even for
1 micron resolution in the near-infrared. This allows the user to select important
optical parameters, such as the center wavelength and resolution, to match
imaging requirements to specific applications. The system design allows simple,
user-friendly operation, putting the focus on your research, not the instrument.
Some of our recent publications in this area include
- "Resolving the complex conjugate ambiguity in Fourier-domain OCT by harmonic lock-in detection of the spectral interferogram," A. B. Vakhtin, K. A. Peterson, and D. J. Kane, Optics Letters 31, 1271-1273 (2006). Available at http://www.opticsinfobase.org,
- "A common path interferometer for frequency domain optical coherence tomography," A. B. Vakhtin, D. J. Kane, W. R. Wood, and K. A. Peterson, Applied Optics 42, No. 34 6953-6958 (2003).
- "Differential spectral interferometry: an imaging technique for biomedical applications," A. B. Vakhtin, K. A. Peterson, W. R. Wood, and D. J. Kane, Optics Letters, 28, No. 15, 1332-1334 (2003).
Other news about OCT can be found at the Optical Coherence Tomography News web site.
For more information, contact
Kris Peterson.
Contact Information
e-mail sciences@swsciences.com
