Increasing Optical Path Lengths in Micro-Fluidic Devices Using a Multi-Pass Cell-Reference-Cited by-同舟云学术

Increasing Optical Path Lengths in Micro-Fluidic Devices Using a Multi-Pass Cell

Published:2024-06-25 Issue:7 Volume:15 Page:820
ISSN:2072-666X
Container-title:Micromachines
language:en
Short-container-title:Micromachines

Author:

Argueta-Diaz Victor¹^ORCID,Owens McKenna²,Al Ramadan Ahmed³

Affiliation:

1. Department of Physics and Engineering, Alma College, Alma, MI 48801, USA

2. College of Engineering, University of Michigan, Ann Arbor, MI 48109, USA

3. Al Qahtani PCK Pipe Company, Dammam 31462, Saudi Arabia

Abstract

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 8.5 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.

Funder

DOW foundation grant

Publisher

MDPI AG

Link

https://www.mdpi.com/2072-666X/15/7/820/pdf

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