Fiber-optical particle sizing by photon density wave spectroscopy

Lena Bressel; Marvin Münzberg; Roland Hass; Oliver Reich

doi:10.1117/12.2059579

2 June 2014 Fiber-optical particle sizing by photon density wave spectroscopy

Lena Bressel, Marvin Münzberg, Roland Hass, Oliver Reich

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 915756 (2014) https://doi.org/10.1117/12.2059579
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

Photon Density Wave (PDW) spectroscopy is introduced as a fiber-optical technique for the in-line and dilution-free determination of the droplet or particle size in highly turbid emulsions and suspensions, respectively. Here, focus is laid on the monitoring of the Phase Inversion Temperature (PIT) emulsification process. The different stages like the inversion from an oil-in-water to a water-in-oil macroemulsion and finally to an oil-in-water nanoemulsion are observed and the droplet size is determined with high temporal resolution. This process shows the capability of PDW spectroscopy to determine particle or droplet sizes over a wide range from the nanometer to micrometer scale.

Citation Download Citation

Lena Bressel, Marvin Münzberg, Roland Hass, and Oliver Reich "Fiber-optical particle sizing by photon density wave spectroscopy", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915756 (2 June 2014); https://doi.org/10.1117/12.2059579

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KEYWORDS

Spectroscopy

Particles

Scattering

Light scattering

Fiber optics

Refractive index

Modulation

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