Journal
OPTICS EXPRESS
Volume 29, Issue 13, Pages 20688-20714Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.423175
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Funding
- Ministry of Education, Culture, Sports, Science and Technology [JPMXD1300000000]
- Environmental Restoration and Conservation Agency [JPMEERF20172003, JPMEERF20202003]
- Japan Society for the Promotion of Science [JP19H04236, JP19H04259, JP19H05699, JP19KK0289]
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This study presents a theoretical and experimental basis for measuring the complex forward-scattering amplitude of single particles through self-reference interferometry. The proposed CAS-v1 protocol aims to utilize self-reference interferometry effectively for inline measurements of single sub- and super-micron particles, facilitating real-time particle measurements in various scientific fields.
Theoretical and experimental bases are given for measuring the complex forward-scattering amplitude of single particles through self-reference interferometry. Our analyses reveal the nondimensional parameters that primarily control the accuracy and resolution of the complex amplitude data. We propose a measurement protocol, Complex Amplitude Sensing version 1 (CAS-v1), for effectively utilizing self-reference interferometry as a universal tool for inline measurements of the complex forward-scattering amplitude of single sub- and super-micron particles suspended in a fluid flow. The CAS-v1 protocol will facilitate applications of self-reference interferometry to real-time particle measurements in the industrial, biomedical, and environmental sciences. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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