Laser optical feedback tomography |
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Authors: | Lacot E Day R Stoeckel F |
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Institution: | Laboratoire de Spectrométrie Physique, Université Joseph Fourier de Grenoble, B.P. 87, 38402 Saint-Martin-d'Hères Cedex, France. |
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Abstract: | We describe a new method for imaging in three-dimensional turbid media, laser optical feedback tomography. This technique is based on the resonant sensitivity of a short-cavity laser to frequency-shifted optical feedback from ballistic photons retrodiffused from the medium. The advantage of the method is that the detector is the laser source itself, which provides optical amplification with self-aligned spatial and temporal coherent detection. |
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