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Optical Path Length Enhancement in Micro-Fluidic Devices Using a Circular Absorption Cell

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posted on 2023-05-15, 09:43 authored by Victor Argueta, McKenna Owens, Ahmed Al Ramadan
This study presents a novel absorption cell with a circular geometry that can be integrated into microfluidic devices for optical spectroscopy applications. The absorption cell is made of PDMS/SU8 and offers an optical path length that is 8.4 times its diameter, resulting in a significant increase in the sensitivity of the measurements. Overall, this design provides a reliable and efficient solution for optical spectroscopy in microfluidic systems, enabling the precise detection and analysis of small quantities of analytes.

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Preprint ID

105871

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