Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications最新文献_第9页

Morphologic evaluation of thin films by algorithms of optical phase stepping applied to images obtained by interferential microscopy 用光学相位步进算法对干涉显微镜获得的图像进行薄膜形态学评价

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI: 10.1117/12.2025981

V. Sarmiento, M. Asmad, J. I. Choque, G. Baldwin

引用次数: 0

Liquid crystal display for phase shifting 液晶显示相移

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI: 10.1117/12.2026442

B. Villalobos-Mendoza, F. Granados-Agustin, D. Aguirre-Aguirre, A. Cornejo-Rodriguez

引用次数: 2

Straightforward filtering to phase demodulation by a Fourier normalized-fringe approach 通过傅里叶归一化条纹方法直接滤波到相位解调

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI: 10.1117/12.2026108

R. Juarez-Salazar, C. Robledo-Sánchez, C. Meneses-Fabian, G. Rodríguez-Zurita, F. Guerrero-Sánchez, J. González-García

引用次数: 3

Pump and filtering optimization in Mamyshev regenerator 马米舍夫蓄热器的泵和过滤优化

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI: 10.1117/12.2026288

A. Supe, G. Fernandes, N. Muga, A. Pinto, M. Ferreira

引用次数: 0

Laser processed preforms for microstructured optical fibers 激光加工微结构光纤预制体

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI: 10.1117/12.2023223

M. Becker, M. Werner, O. Fitzau, D. Esser, J. Kobelke, K. Schuster, A. Lorenz, A. Schwuchow, M. Rothhardt, D. Hoffmann, H. Bartelt

引用次数: 1

Fluorescence support in optical tweezers 光学镊子中的荧光支持

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI: 10.1117/12.2016447

J. G. Animas, M. Arronte, T. Flores, L. Ponce

引用次数: 0

Evaluation between methods for the color measurement in holograms by using a CMOS-RGB camera and a spectrometer 用CMOS-RGB相机和分光计测量全息图颜色方法的比较

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI: 10.1117/12.2027569

Natalith Palacios-Ortega, Daniel Velásquez Prieto

{"title":"Evaluation between methods for the color measurement in holograms by using a CMOS-RGB camera and a spectrometer","authors":"Natalith Palacios-Ortega, Daniel Velásquez Prieto","doi":"10.1117/12.2027569","DOIUrl":"https://doi.org/10.1117/12.2027569","url":null,"abstract":"Many models and methods commonly used in colorimetry have been incorporated to the study and knowledge of the colorimetric properties in the reflection color holograms; these methods have reported the possibilities of color reproduction in holograms. One method is based in calculating the color differences between the CIE-L*a*b* coordinates of the original object compared to the same values obtained for the reconstructed hologram; these values are calculated through the measurement of the spectral composition of the light in the reproduced hologram which are made with spectrometers. Other methods are based in the use of cameras for the color measurement, although, they are not commonly used for that ending in holography. This work presents the results of a comparative study between the use of spectrometers and RGB digital cameras for the color measurement in holograms. The diffraction efficiency of the holograms for a GretagMacbeth Colorchecker samples is measured through a spectrometer and their CIE-L*a*b* coordinates are calculated; the color differences are also calculated by taking as theoretical values the coordinates of the original object. A similar procedure is made by capturing the reconstructed images of the hologram through a CMOSRGB camera, which requires a linearizing and characterizing procedure. The RGB coordinates of the original object are compared with the RGB coordinates of the reproduced hologram too.","PeriodicalId":135913,"journal":{"name":"Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131677039","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: 6

Optical fiber trap: radiation pressure effect on inorganic and organic micro-particles 光纤捕集器:辐射压力对无机和有机微粒的影响

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI: 10.1117/12.2026435

H. H. Cerecedo-Núñez, J. C. Alvarado-Zacarias, P. Padilla-Sosa, M. Basurto-Pensado, M. May-Alarcon, R. Ramos-García, L. Beltrán-Parrazal

引用次数: 1

The optical nonlinearity of gold nanoparticles prepared by bioreduction method 生物还原法制备金纳米颗粒的光学非线性

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI: 10.1117/12.2026459

A. Balbuena Ortega, M. L. Arroyo Carrasco, V. L. Gayou, A. Orduña Díaz, R. Delgado Macuil, M. Rojas López

{"title":"The optical nonlinearity of gold nanoparticles prepared by bioreduction method","authors":"A. Balbuena Ortega, M. L. Arroyo Carrasco, V. L. Gayou, A. Orduña Díaz, R. Delgado Macuil, M. Rojas López","doi":"10.1117/12.2026459","DOIUrl":"https://doi.org/10.1117/12.2026459","url":null,"abstract":"Nonlinear optical and electronic properties of nanosized metal particles have drawn considerable attention because of their strong and size-dependent plasmon resonance absorption. In a metal nanoparticle system such as gold dispersed in a transparent matrix, an absorption peak due to surface plasmon resonance is usually observed in the visible spectral region. Metal nanoparticles are of special interest as nonlinear materials for optical switching and computing because of their relatively large third-order nonlinearity (χ3) and ultrafast response time. The purpose of this study was to analyze the nonlinear optical properties of biosynthesized gold nanoparticles. The samples were prepared by biosynthesis method using yeast extract as reducing agent and the nonlinear optical properties of the nanoparticles were investigated using a single beam Z-scan technique with a beam power of 20 mW and operated at wavelength of 514 nm. The reaction between metal ions and yeast extracts were monitored by UV–visible spectra of Au nanoparticles in aqueous solution with different pH (3-6). The surface plasmon peak position was shifted from 528 nm to 573 nm, according to of pH variation 4 to 6. The average particle size was calculated by the absorption peak position using the Fernig method, from 42 to 103 nm. The z-scan curves showed a negative nonlocal nonlinear refractive index with a magnitude dependent on the nanoparticle size.","PeriodicalId":135913,"journal":{"name":"Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123111597","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

Stabilization and calibration of an ECDL system with a Michelson interferometer 用迈克尔逊干涉仪稳定和校准ECDL系统

Iberoamerican Meeting of Optics and the Latin American Meeting of Optics, Lasers and Their Applications Pub Date : 2013-11-18 DOI: 10.1117/12.2026295

I. Outumuro, J. L. Valencia, J. Diz-Bugarin, I. Estevez-Caride, J. Blanco, B. Dorrio

引用次数: 1