Optical narrow band frequency analysis of polystyrene bead mixtures

Popov, K. A.; Kurzweg, Timothy P.

doi:10.1117/12.840719

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Theoretical Models Versus the Experimental Data1

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2011

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“…This challenge has motivated us to examine small wavelength bins, on the order of 40nm [15], [17] . In this smaller range, the frequency of the oscillations is closer to uniform.…”

Section: Theoretical Models Versus the Experimental Datamentioning

confidence: 99%

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Theoretical and experimental comparison of tissue phantoms using white light spectroscopy

Popov

Kurzweg

2011

Biomedical Applications of Light Scattering V

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White light spectroscopy has the potential to be used as an optical biopsy method, as backscattered light data can be related to the cellular nucleus size. In this paper, we compare experimental backscattering results against the general Mie theory simulations. Our experimental technique obtains results in terms of intensity vs. wavelength. We also use optical filters, to limit the source spectrum, and when converting the backscattered data into the Fourier domain, we obtain characteristic frequencies which describe the scatterer size. Phantom tissues, comprised of polystyrene spheres in a liquid or gel, are used for the experiments.

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“…This challenge has motivated us to examine small wavelength bins, on the order of 40nm [15], [17] . In this smaller range, the frequency of the oscillations is closer to uniform.…”

Section: Theoretical Models Versus the Experimental Datamentioning

confidence: 99%

“…We focus in the wavelength range of 500 and 700nm. In our previous work [15], [17] , we introduced our technique for conversion into the frequency domain and determining signature frequencies for different sized scatterers.…”

Section: Experimental Set Upmentioning

confidence: 99%