基于表面等离子共振光子水晶纤维的高灵敏度和广域折射率传感器
Fengmin Wang1, Yong Wei1,2, Yanhong Han1
1Liren College, Yanshan University, Qinhuangdao 066004, China.
Sensors (Basel, Switzerland)
|July 29, 2023
概括
这项研究引入了一种新的表面等离子体共振 (SPR) 光子晶纤维 (PCF) 传感器,用于检测高折射率材料. 该传感器在近红外和中红外频谱中显示了超宽的检测范围和高灵敏度.
科学领域:
- 光电学是指光电子产品.
- 传感技术 传感技术
- 材料科学 材料科学 材料科学
背景情况:
- 精确检测高折射率 (RI) 材料对于各种应用至关重要.
- 现有的传感器在检测范围和灵敏度上往往具有局限性,特别是在近红外 (NIR) 和中红外 (MIR) 频谱中.
研究的目的:
- 提出和研究一种新的表面等离子体共振 (SPR) 光子晶纤维 (PCF) 传感器,用于高RI检测.
- 在NIR和MIR地区扩大RI测量的检测范围.
- 分析传感特征和结构参数对传感器性能的影响.
主要方法:
- 一个具有圆感应通道的SPR PCF传感器的设计.
- 利用光纤核心和传感层之间的接口上的表面等离子体共振效应.
- 采用全向量有限元素方法 (FEM) 进行模拟和分析.
主要成果:
- 传感器成功地检测到高RI材料在1.41-1.58的范围内在1600-3200纳米波长范围内.
- 达到 9217.22 nm/RIU.的平均波长灵敏度.
- 获得了10.85 × 10-6 RIU的高折射率分辨率.
结论:
- 拟议的SPR PCF传感器提供了超宽的检测范围,并提高了对NIR和MIR频段中高RI材料的灵敏度.
- 这种传感器设计为开发先进的PCF-SPR传感器提供了宝贵的理论参考.
- 潜在的应用包括化学检测,生物医学传感和其他需要精确RI测量的领域.
相关概念视频
01:19Restorative Care
Restorative care is provided once a patient has been discharged from a healthcare facility and requires additional services. The additional services include home care, rehabilitation programs, and extended care. Restorative care centers help the patient regain their previous level of functioning or acquire a new level of functioning due to the incapacitating effects of a disease or a disability. It aims to assist patients in enhancing their quality of life by encouraging independence,...
01:25Continuing Care
Continuing care describes the variety of health, personal, and social services provided over a prolonged period. The need for continuing care is increasing because people are living longer. Many people do not have families or others to care for them. Continuing care is mainly for patients who are disabled, functionally dependent, or suffering from a terminal disease. It is available within institutional settings or in homes. Examples include nursing centers or facilities, assisted living,...
01:24Nursing Process for Patient and Caregiver Teaching I: Assessment and Diagnosis
The nursing process provides a clinical decision-making framework for patients and families to establish and implement a personalized care plan. Since part of the nurse's duties is to teach patients, the steps of the nursing process are the most effective way to approach instruction. The nursing process and the teaching-learning process are inextricably linked.
It is critical to determine the patient's learning needs during the assessment. Determination of learning needs compounds data from the...
It is critical to determine the patient's learning needs during the assessment. Determination of learning needs compounds data from the...
01:29Documentation in Long-Term and Home Healthcare Setting
Documentation in long-term care facilities and home healthcare settings is crucial for ensuring continuous, coordinated, and comprehensive care for patients. Each setting has its specific documentation processes and tools:
Long-Term Care Facilities
Long-Term Care Facilities
01:26Alzheimer's Disease: Overview
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ and tau...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ and tau...
01:30Dementia
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual.
The progression of dementia is generally gradual.