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迈向一种使用随机激光结合漫反射光谱的传感模型。

Towards a sensing model using a random laser combined with diffuse reflectance spectroscopy.

作者信息

Ni Dongqin, Klämpfl Florian, Schmidt Michael, Hohmann Martin

机构信息

Institute of Photonic Technologies (LPT), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Konrad-Zuse-Straße 3/5, 91052 Erlangen, Germany.

Erlangen Graduate School in Advanced Optical Technologies (SAOT), Paul-Gordan-Straße 6, 91052 Erlangen, Germany.

出版信息

Biomed Opt Express. 2024 Jul 3;15(8):4425-4437. doi: 10.1364/BOE.525693. eCollection 2024 Aug 1.

DOI:10.1364/BOE.525693
PMID:39346981
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11427212/
Abstract

The previous research proves that the random laser emission reflects not only the scattering properties but also the absorption properties. The random laser is therefore considered a potential tool for optical properties sensing. Although the qualitative sensing using the random laser is extensively investigated, a quantitative measurement of optical properties is still rare. In this study, a generalized mathematical quantitative model using random laser combined with diffuse reflectance spectroscopy is proposed for optical sensing in turbid media. This model describes the gain effect of the active medium and the optical properties effect of the passive medium separately. Rhodamine 6G is used as the active medium. Intralipid and ink are employed to demonstrate the effect of the scattering and absorption, respectively. The peak wavelength shift of the random laser is proved to be an ideal sensing parameter for this sensing model. It is also revealed that the scaling parameters in the sensing model are interrelated and can be simplified to one. With this combined model, the direct sensing of optical properties in diverse turbid media is promising.

摘要

先前的研究证明，随机激光发射不仅反映散射特性，还反映吸收特性。因此，随机激光被认为是一种用于光学特性传感的潜在工具。尽管使用随机激光的定性传感已得到广泛研究，但光学特性的定量测量仍然很少见。在本研究中，提出了一种将随机激光与漫反射光谱相结合的广义数学定量模型，用于浑浊介质中的光学传感。该模型分别描述了活性介质的增益效应和无源介质的光学特性效应。罗丹明6G用作活性介质。分别使用脂质体和墨水来证明散射和吸收的影响。随机激光的峰值波长偏移被证明是该传感模型的理想传感参数。还发现传感模型中的缩放参数是相互关联的，可以简化为一个。通过这种组合模型，有望直接传感各种浑浊介质中的光学特性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/4937d6f162cd/boe-15-8-4425-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/d71ce46b7651/boe-15-8-4425-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/5c4471bd68db/boe-15-8-4425-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/95cb202726f8/boe-15-8-4425-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/e2646c2318d1/boe-15-8-4425-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/fbc9e062601f/boe-15-8-4425-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/d8dbe27de646/boe-15-8-4425-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/4937d6f162cd/boe-15-8-4425-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/d71ce46b7651/boe-15-8-4425-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/5c4471bd68db/boe-15-8-4425-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/95cb202726f8/boe-15-8-4425-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/e2646c2318d1/boe-15-8-4425-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/fbc9e062601f/boe-15-8-4425-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/d8dbe27de646/boe-15-8-4425-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0510/11427212/4937d6f162cd/boe-15-8-4425-g007.jpg

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