European Workshop on Optical Fibre Sensors最新文献_第8页

Opto-electrochemical sensing of C-reactive protein using optical fiber lossy-mode resonance sensor 光纤损耗模谐振传感器对c反应蛋白的光电电化学传感

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678113

D. Burnat, K. Szot-Karpińska, P. Sezemský, M. Janik, M. Koba, J. Niedziółka-Jönsson, Viteszlav Stranak, M. Śmietana

引用次数: 0

A probe-type fiber optic ultraviolet photodetector 一种探针型光纤紫外光电探测器

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2681883

Yue Qin, Dingbang Ma, Y. Wang, C. Liao, Yiping Wang

引用次数: 0

Dual functionality of wavelength scanning coherent optical time domain reflectometer 波长扫描相干光时域反射计的双重功能

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678098

Xin Lu, K. Hicke, K. Krebber

引用次数: 0

Directional bending monitoring using a multimode elliptical-core fiber and a machine learning algorithm 利用多模椭圆芯光纤和机器学习算法进行定向弯曲监测

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678451

Rodolfo Martínez-Manuel, Jonathan Esquivel-Hernández, Luis M. Valentín-Coronado, M. Shlyagin, S. Larochelle

引用次数: 0

Tilted optical fiber Bragg grating with fluorinated graphene-like overlayer for ammonia detection 含氟石墨烯涂层的倾斜光纤布拉格光栅用于氨检测

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678525

E. Grantzioti, N. Samartzis, K. Bhorkar, S. Pissadakis, S. Yannopoulos, M. Konstantaki

{"title":"Tilted optical fiber Bragg grating with fluorinated graphene-like overlayer for ammonia detection","authors":"E. Grantzioti, N. Samartzis, K. Bhorkar, S. Pissadakis, S. Yannopoulos, M. Konstantaki","doi":"10.1117/12.2678525","DOIUrl":"https://doi.org/10.1117/12.2678525","url":null,"abstract":"We describe an optical fiber sensor for detection of ammonia vapors employing a fluorinated graphene-like overlayer on a tilted Bragg grating. Exploiting the laser-mediated explosive synthesis and transfer (LEST) of graphene (Gr) flakes a thin film of few-layer turbostratic graphene flakes doped with F atoms (~ 3.3 at. %) are deposited on the fiber at the location of the grating. The response of the sensor was investigated for NH4OH vapors while for reference, the effect of H2O was also monitored at identical conditions. Under increasing vapor pressure of NH4OH, wavelength shift is recorded not only in the cladding modes but also for the fundamental Bragg mode, indicating that the effect is not solely due to changes in the optical parameters of the overlayer. The monitored wavelength shift is initially negative turning to positive when vapor saturation is reached. Furthermore, there is a distinct difference in the magnitude of the monitored shifts with the higher order mode exhibiting 2.5x higher values compared to the Bragg mode. The study is ongoing and will also include overlayers of pure LEST Gr and LEST Gr decorated with Six nanoparticles.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123000933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical fiber probe for prostate cancer screening: ex vivo study 光纤探头用于前列腺癌筛查:离体研究

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678083

A. Iele, A. Ricciardi, C. Pecorella, A. Cirillo, F. Ficuciello, B. Siciliano, R. La Rocca, V. Mirone, M. Consales, A. Cusano

引用次数: 0

Draw tower furnace diagnostics applying a sapphire fiber Bragg grating probe 应用蓝宝石光纤布拉格光栅探头进行拉塔炉诊断

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2679822

T. Elsmann, A. Lorenz, K. Schröder, T. Habisreuther

引用次数: 0

Sub-centimeter spatial resolution dynamic strain sensing using time-expanded ΦOTDR 基于时间扩展的亚厘米空间分辨率动态应变传感ΦOTDR

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678093

M. Soriano-Amat, P. Guay, H. Martins, S. Martín-López, M. González-Herráez, J. Genest, M. Fernández-Ruiz

{"title":"Sub-centimeter spatial resolution dynamic strain sensing using time-expanded ΦOTDR","authors":"M. Soriano-Amat, P. Guay, H. Martins, S. Martín-López, M. González-Herráez, J. Genest, M. Fernández-Ruiz","doi":"10.1117/12.2678093","DOIUrl":"https://doi.org/10.1117/12.2678093","url":null,"abstract":"Time-expanded phase-sensitive (TE-φ )OTDR is a distributed optical fiber sensing (DOFS) technique that takes advantage of the dual-frequency comb technology to offer distributed, dynamic, and high-spatial resolution measurements. The performance delivered by this recent approach is unmatched by any other DOFS, combining the high resolution of OFDR with the potential for long range and fast sampling of φ OTDR. In this contribution, we present an optimized TE-φ OTDR scheme with important improvements with respect to the traditional one. In particular, the new architecture uses electrooptical phase modulation instead of intensity modulation, increasing the energy-efficiency. Additionally, it employs an optical hybrid to double the spectral efficiency of the system, which in practical terms results in doubling the spatial resolution for the same interrogating comb bandwidth. The proposed architecture has been experimentally validated through a scheme providing 5 mm of spatial resolution, 80 m of range and 70 Hz sampling rate with a simple, compact and low-cost setup using field-programmable gate arrays (FPGA) and relatively low bandwidth photodetection (2 MHz).","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128113567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lab-on-fiber optrodes based on all-dielectric fluorescence enhancing metasurfaces 基于全介电荧光增强超表面的光纤光电电极

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2679369

H. Alhalaby, M. Principe, H. Zaraket, P. Vaiano, A. Aliberti, G. Quero, A. Crescitelli, V. Di Meo, E. Esposito, M. Consales, A. Cusano

{"title":"Lab-on-fiber optrodes based on all-dielectric fluorescence enhancing metasurfaces","authors":"H. Alhalaby, M. Principe, H. Zaraket, P. Vaiano, A. Aliberti, G. Quero, A. Crescitelli, V. Di Meo, E. Esposito, M. Consales, A. Cusano","doi":"10.1117/12.2679369","DOIUrl":"https://doi.org/10.1117/12.2679369","url":null,"abstract":"The need for miniaturized biological sensors which can be easily integrated into medical needles and catheters for in vivo liquid biopsies with ever-increasing performances has stimulated the interest of researchers in Lab-on-Fiber (LOF) technology. In this framework, the integration of Metasurfaces (MSs) on the tip of the optical fiber (Optical Fiber Meta- Tip, OFMT) has represented a major breakthrough. Indeed, we showed that a suitably designed plasmonic OFMT biosensor significantly outperforms standard plasmonic ones due to the advanced light wave manipulation of MSs. Here, to further improve the sensing performances, we propose a novel class of LOF optrodes for labelled biosensing based on dielectric fluorescence enhancing OFMT. We envision a single fiber probe with integrated a Silicon MS on its tip as a light coupled substrate that illuminates the sample and simultaneously collects the enhanced emission from the dye molecules labeling the biological target. We present a numerical environment to compute the fluorescence enhancement factor collected by a multi-mode-fiber, when on its tip a Silicon MS is laid, consisting of an array of cylindrical nanoantennas. According to the numerical results, a suitable design of the dielectric MS allows for a fluorescence enhancement up to three orders of magnitudes. Moreover, a feasibility study is carried out to verify the possibility to fabricate the designed MSs on the termination of multimode optical fibers using electron beam lithography followed by reactive ion etching. This work provides the main guidelines for the development of advanced LOF devices based on the fluorescence enhancement for labeled biosensing.","PeriodicalId":424244,"journal":{"name":"European Workshop on Optical Fibre Sensors","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121254639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Damage detection in an aluminum plate through a phi-OTDR sensor and support vector machines 基于pi - otdr传感器和支持向量机的铝板损伤检测

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI: 10.1117/12.2678095

R. Zahoor, E. Catalano, R. Vallifuoco, L. Zeni, A. Minardo

引用次数: 0