Ultrasound modulated optical tomography in scattering media: flux filtering based on persistent spectral hole burning in the optical diagnosis window

Abstract

Ultrasound modulated optical tomography (UOT) is a powerful imaging technique to discriminate healthy from unhealthy biological tissues based on their optical signature. Among the numerous detection techniques developed for acousto-optic imaging, only those based on spectral filtering are intrinsically immune to speckle decorrelation. This paper reports on UOT imaging based on spectral hole burning in Tm:YAG crystal under a moderate magnetic field (200G) with a well-defined orientation. The deep and long-lasting holes translate into a more efficient UOT imaging with a higher contrast and faster imaging frame rate. We demonstrate the potential of this method by imaging calibrated phantom scattering gels.

arXiv comment4 pages, 5 figures

References in corpus (4)

• Experimental Tailoring of a Three-Level Lambda System in Tm3+:YAG
• Quadratic Zeeman effect and spin-lattice relaxation of Tm${}^{3+}$:YAG at high magnetic fields
• Coherent optical ultrasound detection with rare-earth ion dopants
• Optical measurement of heteronuclear cross-relaxation interactions in Tm:YAG

Cited by in corpus (5)

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• Multi-mode Heterodyne Laser Interferometry Realized via Software Defined Radio
• Microscopic model of spin flip-flop processes in rare-earth-ion-doped crystals
• Deep and persistent spectral holes in Tm-doped yttrium orthosilicate for imaging applications