{"title":"A GaAs 2D photonic crystal biosensor for waterborne detection","authors":"Abdelaziz Ould Bahammou, Monia Najjar","doi":"10.1007/s10946-024-10234-1","DOIUrl":null,"url":null,"abstract":"<div><p>Monitoring waterborne and foodborne bacteria in drinking water and food is becoming a primary issue due to these bacteria having the potential to cause illness and harm human health. In this article, we design a new two-dimension (2D) photonic crystal biosensors for detecting waterborne bacteria, such as Vibrio cholerae, Escherichia coli (E. coli), Shigella flexneri and Salmonella. Our sensor is composed of air holes in a Gallium arsenide photonic crystal slab, using the plane wave expansion (PWE) and the finite difference time domain (FDTD) methods to develop and analysis the biosensor. The proposed biosensor has a high <i>Q</i>-factor of 9227.9, a sensitivity of 226.97, a high figure of merit (FOM) of 2269.7 RIU<sup>−1</sup>, a detection limit of 4.405 · 10<sup>-4</sup> RIU, a smallest size of 23.28 µm<sup>2</sup> for detection. The device can augment the capabilities of biological devices for waterborne and foodborne bacteria detection.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 4","pages":"468 - 477"},"PeriodicalIF":0.7000,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Russian Laser Research","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10946-024-10234-1","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Monitoring waterborne and foodborne bacteria in drinking water and food is becoming a primary issue due to these bacteria having the potential to cause illness and harm human health. In this article, we design a new two-dimension (2D) photonic crystal biosensors for detecting waterborne bacteria, such as Vibrio cholerae, Escherichia coli (E. coli), Shigella flexneri and Salmonella. Our sensor is composed of air holes in a Gallium arsenide photonic crystal slab, using the plane wave expansion (PWE) and the finite difference time domain (FDTD) methods to develop and analysis the biosensor. The proposed biosensor has a high Q-factor of 9227.9, a sensitivity of 226.97, a high figure of merit (FOM) of 2269.7 RIU−1, a detection limit of 4.405 · 10-4 RIU, a smallest size of 23.28 µm2 for detection. The device can augment the capabilities of biological devices for waterborne and foodborne bacteria detection.
期刊介绍：
The journal publishes original, high-quality articles that follow new developments in all areas of laser research, including:
laser physics;
laser interaction with matter;
properties of laser beams;
laser thermonuclear fusion;
laser chemistry;
quantum and nonlinear optics;
optoelectronics;
solid state, gas, liquid, chemical, and semiconductor lasers.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
