Pub Date : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230933
Sajid Farooq, G. Germano, K. Stancari, Rocío Raffaeli, M. Croce, Adela E. Croce, D. Zezell
Here, we apply a 3D discriminant analysis approach to analyze FTIR hyperspectral images of normal vs malignant Melanoma (MM) samples for skin cancer diagnosis. For this porpose we used 2 samples, for Normal (49k) and for MM(90k). Our results evidence the outstanding performance with accuracy up to 81% for big data (> 100k).
{"title":"A 3D Discriminant Analysis for Hyperspectral FTIR Images","authors":"Sajid Farooq, G. Germano, K. Stancari, Rocío Raffaeli, M. Croce, Adela E. Croce, D. Zezell","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230933","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230933","url":null,"abstract":"Here, we apply a 3D discriminant analysis approach to analyze FTIR hyperspectral images of normal vs malignant Melanoma (MM) samples for skin cancer diagnosis. For this porpose we used 2 samples, for Normal (49k) and for MM(90k). Our results evidence the outstanding performance with accuracy up to 81% for big data (> 100k).","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"31 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87822890","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}
Pub Date : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230938
R. Araguillin, Elizabeth Samaniego, Isamar Sarabia, Víctor Santos, X. Cattoën, Yanxia Hou-Boutin, C. Costa-Vera
We studied by SPR sensor the interactions in nanoparticles suspended in liquids and between the NPs and the sensor gold surface. After calibration with NaCl, suspensions were dried to measure the continuously reconcentrating NP suspensions. The results suggest that by means of this method we can determine the concentration of NPs and their refractive index.
{"title":"Interactions between Plasmonic Nanoparticles with a Kretschmann-Configuration SPR Setup","authors":"R. Araguillin, Elizabeth Samaniego, Isamar Sarabia, Víctor Santos, X. Cattoën, Yanxia Hou-Boutin, C. Costa-Vera","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230938","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230938","url":null,"abstract":"We studied by SPR sensor the interactions in nanoparticles suspended in liquids and between the NPs and the sensor gold surface. After calibration with NaCl, suspensions were dried to measure the continuously reconcentrating NP suspensions. The results suggest that by means of this method we can determine the concentration of NPs and their refractive index.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"47 1","pages":"01-02"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87829066","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}
Pub Date : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230948
Camila Ianhez Pereira dos Santos, Ariano De Giovanni Rodrigues, M. D. de Godoy
We report on the correlations between the optical emission of the Erbium and the structural conditions of ZnO host thin film. The influence of the local chemical environment on the luminescence properties of the trivalent RE ions is often disregarded, and the management of host crystallinity in Spray-Pyrolysis synthesis is provided by the precursor dilution, i.e., solution molarity (M). Here we present an analysis of Erbium photoluminescence depending on the host crystallinity, which implies different Stark fields. The use of lower molarity results in transparent films well texturized in c-axis while the use of high molarity provides an opaque powder-like film.
{"title":"Managing Erbium Emissions through ZnO Host Crystallinity","authors":"Camila Ianhez Pereira dos Santos, Ariano De Giovanni Rodrigues, M. D. de Godoy","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230948","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230948","url":null,"abstract":"We report on the correlations between the optical emission of the Erbium and the structural conditions of ZnO host thin film. The influence of the local chemical environment on the luminescence properties of the trivalent RE ions is often disregarded, and the management of host crystallinity in Spray-Pyrolysis synthesis is provided by the precursor dilution, i.e., solution molarity (M). Here we present an analysis of Erbium photoluminescence depending on the host crystallinity, which implies different Stark fields. The use of lower molarity results in transparent films well texturized in c-axis while the use of high molarity provides an opaque powder-like film.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"18 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86594905","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}
Pub Date : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230973
J. Etxebarria-Elezgarai, Luca Bergamini, Eneko Lopez Corrillero, M. C. Morant-Miñana, J. Adam, Andreas Seifert
We present a sensing device that combines plasmonic Au nanodiscs with dielectric layers. The sensor is operated in Kretschmann configuration and provides highly complex and sensitive reflectance curves as a result of hybridized plasmons and Fresnel reflections from the microfluidic device in which the plasmonic chip is embedded. Using multi-variate analysis to analyze multiple features of the reflectance curves in angular interrogation contributes significantly to the improvement of the sensing performance compared to a standard continuous Au thin film sensor chip. We improve sensitivity twofold and prediction error by almost 40%.
{"title":"Plasmonic Signals Modified by Dielectric Layers and Exploited by Multivariate Analysis","authors":"J. Etxebarria-Elezgarai, Luca Bergamini, Eneko Lopez Corrillero, M. C. Morant-Miñana, J. Adam, Andreas Seifert","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230973","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230973","url":null,"abstract":"We present a sensing device that combines plasmonic Au nanodiscs with dielectric layers. The sensor is operated in Kretschmann configuration and provides highly complex and sensitive reflectance curves as a result of hybridized plasmons and Fresnel reflections from the microfluidic device in which the plasmonic chip is embedded. Using multi-variate analysis to analyze multiple features of the reflectance curves in angular interrogation contributes significantly to the improvement of the sensing performance compared to a standard continuous Au thin film sensor chip. We improve sensitivity twofold and prediction error by almost 40%.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"15 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91019288","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}
Pub Date : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230916
Eduardo A. V. Souza, J. Osório, Cristiano M. B. Cordeiro
We report on the characterization of the depthdependent concentration gradient of an inhomogeneous water-sucrose solution and its evolution with time. The experimental method is simple and non-intrusive, being attractive for the characterization of liquid samples displaying optical activity.
{"title":"Characterizing an Inhomogeneous Water-Carbohydrate Solution using its Optical Activity","authors":"Eduardo A. V. Souza, J. Osório, Cristiano M. B. Cordeiro","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230916","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230916","url":null,"abstract":"We report on the characterization of the depthdependent concentration gradient of an inhomogeneous water-sucrose solution and its evolution with time. The experimental method is simple and non-intrusive, being attractive for the characterization of liquid samples displaying optical activity.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"30 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80885265","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}
Pub Date : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230946
M. S. Rodrigues, E. Fujiwara
This work presents a straightforward, low-cost method for assessing the deflection of flexible elements to envisage applications in the field of soft robotics. The sensor comprises an optical fiber specklegram transducer coupled to a cantilever-type manipulator. The results yield absolute sensitivities of 0.37 N−1 and 0.05 cm−1 concerning force and deflection measurements, respectively, with a good agreement between simulation and experimental validation.
{"title":"Optical Fiber Specklegram Bending Sensor for Application in Soft Robotics","authors":"M. S. Rodrigues, E. Fujiwara","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230946","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230946","url":null,"abstract":"This work presents a straightforward, low-cost method for assessing the deflection of flexible elements to envisage applications in the field of soft robotics. The sensor comprises an optical fiber specklegram transducer coupled to a cantilever-type manipulator. The results yield absolute sensitivities of 0.37 N−1 and 0.05 cm−1 concerning force and deflection measurements, respectively, with a good agreement between simulation and experimental validation.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"8 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80362574","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}
Pub Date : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230941
I. S. Lopes, Murilo M Garrigós, Lilia Coronato Courrol
Aminolevulinic acid (ALA) as a prodrug can be converted to protoporphyrin IX, which can be accumulated preferentially in tumor cells, presenting theranostic applications. ALA is also a precursor to chlorophyll, essential for photosynthesis. Gamma-aminobutyric acid (GABA) is a vertebrate central nervous system neurotransmitter. In plants, intracellular levels of GABA are typically low. GABA can be significantly accumulated in response to drought, salt, and low temperature and can increase the resistance of plants against these stresses. This paper describes the synthesis and characterization of metallic nanoparticles (silver, gold, and copper) and their applications in medicine and agriculture are exploited.
{"title":"Metallic Nanoparticles Functionalized with Aminolevulinic Acid and Gamma-Aminobutyric Acid: Applications in Medicine and Agriculture","authors":"I. S. Lopes, Murilo M Garrigós, Lilia Coronato Courrol","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230941","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230941","url":null,"abstract":"Aminolevulinic acid (ALA) as a prodrug can be converted to protoporphyrin IX, which can be accumulated preferentially in tumor cells, presenting theranostic applications. ALA is also a precursor to chlorophyll, essential for photosynthesis. Gamma-aminobutyric acid (GABA) is a vertebrate central nervous system neurotransmitter. In plants, intracellular levels of GABA are typically low. GABA can be significantly accumulated in response to drought, salt, and low temperature and can increase the resistance of plants against these stresses. This paper describes the synthesis and characterization of metallic nanoparticles (silver, gold, and copper) and their applications in medicine and agriculture are exploited.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"36 1","pages":"01-03"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79258178","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}
Pub Date : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230952
A. D. Sousa, J. Vargas, P. H. S. Pinto, R. Allil, M. Werneck
This work presents a hydrogen sulfide (H2S) gas sensor manufactured using a Long Period Gratings-Mach Zehnder (LPG-MZ) interferometer that was coated with CuO nanoparticles. The LPG-MZ was fabricated using the electric-arc discharge method, and the resulting sensor was coated with CuO nanoparticles. Prior to testing with H2S, the sensor was characterized with aqueous solutions of varying refractive indices (RI), with a sensitivity of 186 nm/RIU between 1.35 and 1.39. The sensor was then tested with H2S concentrations ranging from 0 to 40 ppm and exhibited a sensitivity of approximately 7.8 pm/ppm between 5 and 20 ppm.
{"title":"An H2S Gas Sensor Based on Long Period Gratings-Mach Zehnder Interferometer","authors":"A. D. Sousa, J. Vargas, P. H. S. Pinto, R. Allil, M. Werneck","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230952","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230952","url":null,"abstract":"This work presents a hydrogen sulfide (H2S) gas sensor manufactured using a Long Period Gratings-Mach Zehnder (LPG-MZ) interferometer that was coated with CuO nanoparticles. The LPG-MZ was fabricated using the electric-arc discharge method, and the resulting sensor was coated with CuO nanoparticles. Prior to testing with H2S, the sensor was characterized with aqueous solutions of varying refractive indices (RI), with a sensitivity of 186 nm/RIU between 1.35 and 1.39. The sensor was then tested with H2S concentrations ranging from 0 to 40 ppm and exhibited a sensitivity of approximately 7.8 pm/ppm between 5 and 20 ppm.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"32 5","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72596238","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}
Pub Date : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230968
A. Bereczki, Felipe Cremasco de Menezes, N. Wetter
We demonstrated the dynamically stable operation of aNd: YAG ring laser with 51.8 W of linearly polarized, continuous output power. The laser was based on laser modules side-pumped by diode bars. The resonator, aimed at single-frequency operation, is a design improvement from a previous work with the resonator length 4.3 times smaller than the previous design, thus resulting in a larger free spectral range, favoring for operation at single-frequency.
{"title":"Compact, High Power CW Ring Laser Resonator","authors":"A. Bereczki, Felipe Cremasco de Menezes, N. Wetter","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230968","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230968","url":null,"abstract":"We demonstrated the dynamically stable operation of aNd: YAG ring laser with 51.8 W of linearly polarized, continuous output power. The laser was based on laser modules side-pumped by diode bars. The resonator, aimed at single-frequency operation, is a design improvement from a previous work with the resonator length 4.3 times smaller than the previous design, thus resulting in a larger free spectral range, favoring for operation at single-frequency.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"52 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80034456","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}
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