2003
DOI: 10.1364/ol.28.002482
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Shot-noise detection of ultrasound-tagged photons in ultrasound-modulated optical imaging

Abstract: We propose a new detection method for ultrasound-modulated optical tomography, which allows to perform, using a CCD camera,a parallel speckle detection with an optimum shot noise sensitivity. Moreover,we show that making use of a spatial filter system allows us to fully filter off the speckle decorrelation noise. This method being confirmed by a test experiment.

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Cited by 95 publications
(112 citation statements)
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“…Several schemes for detection 2,3,6 -14 have been explored. A CCD camera that provides parallel speckle detection 8,9,14 was used to produce a better signal-to-noise ratio than a single square-law detector. To obtain resolution along the ultrasonic axis, several groups of scientists explored various techniques, including an ultrasound frequency sweep, 7 computer tomography, 15 and tracking of ultrasound pulses 11 or short bursts.…”
mentioning
confidence: 99%
“…Several schemes for detection 2,3,6 -14 have been explored. A CCD camera that provides parallel speckle detection 8,9,14 was used to produce a better signal-to-noise ratio than a single square-law detector. To obtain resolution along the ultrasonic axis, several groups of scientists explored various techniques, including an ultrasound frequency sweep, 7 computer tomography, 15 and tracking of ultrasound pulses 11 or short bursts.…”
mentioning
confidence: 99%
“…Many detection techniques are investigated by other research groups to overcome these problems. Gross et al [18] had proposed a method to detect tagged photons based on heterodyne parallel speckle detection which allow a high sensitive detection limited only by laser noise (shot noise). Other research groups proposed a detection technique based on photorefractive crystal with fast response time [19], or by applying a quantum spectral filter based on spectral hole burning [20] which allow to overcome speckle decorrelation.…”
Section: Discussionmentioning
confidence: 99%
“…At present, the development of effective detection systems is the subject of intense research. [3][4][5][6][7][8][9][10] Also, the exact nature of the ultrasound-modulation of light in a highly optically scattering medium is still not totally understood due to the complicated light-ultrasound interaction in the presence of optical scatterers. Similarly to dynamic light scattering by scatterers undergoing Brownian motion, 11 dynamic scattering by optical scatterers oscillating in an ultrasound field causes optical frequency shifts.…”
Section: Introductionmentioning
confidence: 99%