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

被引：0
作者：
Argueta-Diaz, Victor [1 ]
Owens, Mckenna [2 ]
Al Ramadan, Ahmed [3 ]
机构：
[1] Alma Coll, Dept Phys & Engn, Alma, MI 48801 USA
[2] Univ Michigan, Coll Engn, Ann Arbor, MI 48109 USA
[3] Al Qahtani PCK Pipe Co, Dammam 31462, Saudi Arabia
来源：
MICROMACHINES | 2024年 / 15卷 / 07期
关键词：
microfluidics; long-optical path; lab-on-a-chip; POLYDIMETHYLSILOXANE PDMS; FABRICATION;
D O I：
10.3390/mi15070820
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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.
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页数：12
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