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Development of Liquid Crystal Display with RGB Laser Backlight RGB激光背光液晶显示器的研制
The International Commission for Optics Pub Date : 2017-05-16 DOI: 10.1002/9781119407270.CH50
Y. Fujii, E. Niikura, N. Okimoto, Maeda Saki, Hironobu Yasui, A. Heishi
{"title":"Development of Liquid Crystal Display with RGB Laser Backlight","authors":"Y. Fujii, E. Niikura, N. Okimoto, Maeda Saki, Hironobu Yasui, A. Heishi","doi":"10.1002/9781119407270.CH50","DOIUrl":"https://doi.org/10.1002/9781119407270.CH50","url":null,"abstract":"","PeriodicalId":320610,"journal":{"name":"The International Commission for Optics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122351877","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: 2
Development of All-Fiber-Type Dual-Comb Spectrometer 全光纤型双梳光谱仪的研制
The International Commission for Optics Pub Date : 2017-05-16 DOI: 10.2184/lsj.46.7_385
Y. Wang
{"title":"Development of All-Fiber-Type Dual-Comb Spectrometer","authors":"Y. Wang","doi":"10.2184/lsj.46.7_385","DOIUrl":"https://doi.org/10.2184/lsj.46.7_385","url":null,"abstract":"光コムは,極限的に高い周波数精度をもつ広帯域コ ヒーレント光源として注目されている.この次世代光 源は,さまざまな計測分野において革新的応用を生み出 すことで大きな影響を与え,現代の光計測におけるキー テクノロジーのひとつとして認知されている. デュアルコム分光法は,光コムを用いた新しいタイプ のフーリエ分光法で,現在最も注目されている光コム応 用技術のひとつである.本手法は,従来の広帯域分 光法と超精密分光法の長所をあわせもっており,フーリ エ赤外分光法(FTIR)などの従来のフーリエ分光法を凌 駕する高い周波数精度と高速測定性を有する優れた計測 法として知られている.デュアルコム分光法は当初,気 体分子の精密近赤外分光を中心に大きく発展してき た.しかし近年,その研究適用対象は周辺技術の発 展にともない急速に拡大している.例えば,センシング に適した振動遷移が多く含まれる中赤外域への拡張 や,コヒーレントラマン散乱や四光波混合などの非 線形光学現象への適用などが挙げられる. このように,デュアルコム分光法の応用は拡大し続け ており,実用的な計測・分析手段として期待されてい る.しかし,デュアルコム分光装置は一般的に大型かつ 構成が複雑で,扱いに専門知識を必要とし,その点が広 範な応用分野への普及にあたり大きな障壁となってい る.この問題を解決するために,システム全体をモ ジュール化し,誰もが容易に操作することが可能な,小 型かつ簡便な汎用分光システムを実現することが強く望 まれる. 我々は,そのような汎用分光システムの実現を目指し て“オールファイバ型デュアルコム分光器”の開発を行っ てきた.システムをファイバ系で構成することで,コン パクトかつアライメントロバストな装置が構築できると 期待される.一方で,ファイバは環境外乱に対して敏感 なので,本研究ではシステムの安定性を中心に評価し た.本稿では,本システムの装置コンセプト,システム の安定性評価の結果,およびファイバセンサ計測への応 用例について報告する.","PeriodicalId":320610,"journal":{"name":"The International Commission for Optics","volume":"210 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113959100","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
Michelson microscope interference objective for micro-structure topography measuring 用于微结构形貌测量的迈克尔逊显微镜干涉物镜
The International Commission for Optics Pub Date : 2011-11-03 DOI: 10.1117/12.903319
K. Hernández, R. Rodríguez-Vera, J. Rayas
{"title":"Michelson microscope interference objective for micro-structure topography measuring","authors":"K. Hernández, R. Rodríguez-Vera, J. Rayas","doi":"10.1117/12.903319","DOIUrl":"https://doi.org/10.1117/12.903319","url":null,"abstract":"Nowadays, the trends of miniaturization of sensors and inspection devices have been of major importance in science and technology. The characterization of microchips, integrated circuits, MEMS, and micro-sensors is important to determine their proper operation. Due to their element small size may have structural fails for improper handling of them. This paper proposes the use of a Michelson interferometric objective for the determination of topographical features in materials at micro and nanoscale level. The main advantage of this method is its non-invasive nature that allows testing in soft materials without damage. The Michelson interferometric microscope objective with a magnification of 5X illuminated with a 632nm He-Ne laser is used. Fringes that allow the study of the topography of these structures are properly analyzed. The acquisition of the interferograms was performed by a CCD, which are handled by the method of phase-stepping. An integrated circuit of a CCD as target is used. A reconstruction of the microscopic topography of the sample produced results with a statistical error in the topography of 12nm. Application of this method is to conduct quality control tests in manufacture of electronic components such as micro-chips and integrated circuits.","PeriodicalId":320610,"journal":{"name":"The International Commission for Optics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127702531","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: 2
Validation of a new algorithm for the recovery of optical properties from turbid samples: GA-MCML against IAD program 从混浊样品中恢复光学性质的新算法的验证:GA-MCML对抗IAD程序
The International Commission for Optics Pub Date : 2011-11-02 DOI: 10.1117/12.902151
B. Morales Cruzado, S. Prahl, J. A. Delgado Atencio, S. Vázquez y Montiel
{"title":"Validation of a new algorithm for the recovery of optical properties from turbid samples: GA-MCML against IAD program","authors":"B. Morales Cruzado, S. Prahl, J. A. Delgado Atencio, S. Vázquez y Montiel","doi":"10.1117/12.902151","DOIUrl":"https://doi.org/10.1117/12.902151","url":null,"abstract":"Determining optical properties of turbid media has been performed by many research groups using a technique based on iteratively solving the radiative transport equation using the adding doubling technique (IAD). We present a new, alternative method, GA-MCML, for determining optical properties based on a Monte Carlo tech- nique for radiative transport (MCML) guided by a genetics algorithm. The Monte Carlo method is more exible than the adding-doubling technique and can be adapted to a wider range of sample geometries. The genetic algorithm is a robust search technique that is well-adapted to avoiding the local minima in this optimization problem. GA-MCML, has been implemented by modifying the MCML source code to account for two common experimental problems: light losses due to the nite sample size and non-linear integrating sphere eects using Mott's equations. GA-MCML was validated by comparing with IAD method for data acquired at 632.8 nm on a set of phantoms using a single integrating sphere system. The GA-MCML results were equivalent to the IAD technique.","PeriodicalId":320610,"journal":{"name":"The International Commission for Optics","volume":"678 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116106554","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: 7
Observation of the commutation between bright and dark spatial optical solitons 明暗空间光学孤子交换的观测
The International Commission for Optics Pub Date : 2011-11-02 DOI: 10.1117/12.901838
A. Rodríguez-Rosales, E. Ordóñez, R. Ortega-Martínez, C. Román, O. Kolokoltsev
{"title":"Observation of the commutation between bright and dark spatial optical solitons","authors":"A. Rodríguez-Rosales, E. Ordóñez, R. Ortega-Martínez, C. Román, O. Kolokoltsev","doi":"10.1117/12.901838","DOIUrl":"https://doi.org/10.1117/12.901838","url":null,"abstract":"We report a new experimental technique on generation of both dark and bright optical spatial solitons in liquid crystals doped with organic dyes. In our recent works we have demonstrated that in some liquid crystals (LC's) the effective nonlinear refraction index (γ) is polarization dependent. Moreover, under certain conditions it is possible to realize inversion of γ, from γ > 0 to γ < 0, by proper adjustment of incident lightwave polarization. In this work we present experimental evidence that this LC is capable of supporting both bright and dark spatial solitons. The experimental setup used for characterization of solitons used two CCD cameras, which allowed us to analyze the longitudinal and transverse propagation characteristics of solitons in a glass cell containing a LC. It was possible to observe a clear correlation between the phase and the polarization state of incident light and the characteristic profile of the dark or bright soliton. The extreme values of the effective nonlinear refraction index were measured to be γ = -4.68 × 10-10 cm2/W (dark spatial soliton case), and γ = 2.80 × 10-10 cm2/W (bright spatial soliton). The key parameters of spatial solitons were estimated by using the nonlinear Schrödinger equation.","PeriodicalId":320610,"journal":{"name":"The International Commission for Optics","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116432351","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
Fabrication of a deformable mirror for pulse shaping 用于脉冲整形的可变形反射镜的制造
The International Commission for Optics Pub Date : 2011-11-02 DOI: 10.1117/12.903377
I. Gómez-Arista, N. Qureshi, J. Garduño-Mejía
{"title":"Fabrication of a deformable mirror for pulse shaping","authors":"I. Gómez-Arista, N. Qureshi, J. Garduño-Mejía","doi":"10.1117/12.903377","DOIUrl":"https://doi.org/10.1117/12.903377","url":null,"abstract":"In this work we report on a fabrication method for producing large-area multilayer polymer membranes and describe its application to the instrumentation of a deformable mirror. This implementation allows for highly flexible mirrors in which mechanical properties vary in a controlled manner in order to better match optical requirements. In addition, the mechanical properties of such membranes allow for a large number of closely spaced actuators. We report on the mechanical properties of metal-polymer membranes and discuss their application to pulse shaping experiments.","PeriodicalId":320610,"journal":{"name":"The International Commission for Optics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125701152","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
Interferometric analysis of polishing surface with a petal tool 花瓣刀具抛光表面干涉分析
The International Commission for Optics Pub Date : 2011-11-02 DOI: 10.1117/12.903361
Alfonso J. Salas-Sanchez, Irce Leal-Cabrera, Elizabeth Percino Zacarias, F. Granados-Agustin
{"title":"Interferometric analysis of polishing surface with a petal tool","authors":"Alfonso J. Salas-Sanchez, Irce Leal-Cabrera, Elizabeth Percino Zacarias, F. Granados-Agustin","doi":"10.1117/12.903361","DOIUrl":"https://doi.org/10.1117/12.903361","url":null,"abstract":"In this work, we describe a phase shift interferometric monitoring of polishing processes produced by a petal tool over a spherical surface to obtain a parabolic surface. In the process, we used a commercial polishing machine; the purpose of this work is to have control of polishing time. To achieve this analysis, we used a Fizeau interferometer of ZYGO Company for optical shop testing, and the Durango software from Diffraction International Company. For data acquisition, simulation and evaluation of optical surfaces, we start polishing process with a spherical surface with 15.46 cm of diameter; a 59.9 cm of radius curvature and, with f/# 1.9.","PeriodicalId":320610,"journal":{"name":"The International Commission for Optics","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121173291","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
Correction of deformed images in real time 实时校正变形图像
The International Commission for Optics Pub Date : 2011-11-02 DOI: 10.1117/12.900236
S. Van Der Jeught, J. Buytaert, J. Dirckx
{"title":"Correction of deformed images in real time","authors":"S. Van Der Jeught, J. Buytaert, J. Dirckx","doi":"10.1117/12.900236","DOIUrl":"https://doi.org/10.1117/12.900236","url":null,"abstract":"Optical lens systems generally contain non-linear distortion artifacts that impose important limitations on the direct interpretation of the images. Image processing can be used to correct for these artifacts, but due to the calculation-intensive nature of the required distortion correction process, this is usually performed offline. This is not an option in image-based applications that operate interactively, however, where the real-time display of distortion corrected images can be vital. To this end, we propose a new technique to correct for arbitrary geometric lens distortion that uses the parallel processing power of a commercial graphics processing unit (GPU). By offloading the distortion correction process to the GPU, we can relieve the central processing unit (CPU) of doing this computationally very demanding task. We successfully implemented the full distortion correction algorithm on the GPU, thereby achieving a display rate of over 30 frames/sec for fully processed images of size 1024 × 768 pixels without the need for any additional digital image processing hardware.","PeriodicalId":320610,"journal":{"name":"The International Commission for Optics","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122755912","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
Effect of cataracts on scattering of light in the eye 白内障对眼睛光线散射的影响
The International Commission for Optics Pub Date : 2011-11-02 DOI: 10.1117/12.901941
Ismael Kelly-Pérez, N. Bruce, L. Berriel-Valdos
{"title":"Effect of cataracts on scattering of light in the eye","authors":"Ismael Kelly-Pérez, N. Bruce, L. Berriel-Valdos","doi":"10.1117/12.901941","DOIUrl":"https://doi.org/10.1117/12.901941","url":null,"abstract":"We compare the radial profiles of light pattern distributions formed in the retina and the exit pupil of a computational model eye, when the wavelength is varying. The computational eye simulates the presence of cataracts, as a particle distribution in the lens. We use three different wavelengths (400, 550 and 700 nm) for the incident light. The results show that for the shorter wavelength the effect of scattering is bigger around the center of the images while for the longest wavelength the light distribution is larger in the edges of the images. The distance from the center of the scattered light pattern to the zone where the profiles cross is inversely proportional to the size of the particles.","PeriodicalId":320610,"journal":{"name":"The International Commission for Optics","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131483696","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: 1
Supercontinuum generation in higher order modes of photonic crystal fibre 光子晶体光纤高阶模超连续谱的产生
The International Commission for Optics Pub Date : 2011-11-02 DOI: 10.1117/12.918305
S. Legge, J. Holdsworth, B. Zwan
{"title":"Supercontinuum generation in higher order modes of photonic crystal fibre","authors":"S. Legge, J. Holdsworth, B. Zwan","doi":"10.1117/12.918305","DOIUrl":"https://doi.org/10.1117/12.918305","url":null,"abstract":"Soliton behaviour in higher order electromagnetic (EM) modes in commercial highly nonlinear photonic crystal fibre (PCF) was investigated by mapping spatial and spectral emission. A femtosecond mode-locked Titanium:Sapphire laser was used to generate supercontinua within a set of higher-order electromagnetic modes by piezoelectric control of the spatial field input to the PCF. Coupling pump wavelengths within the normal dispersion regime for the fundamental EM mode into higher EM modes resulted in the emission of blue light, characteristic of higher order soliton fission, in higher order EM modes. Detailed spectral measurements across the spatial mode field output from the PCF, showed different spectral components of the generated continua occupying different spatial electromagnetic modes. In particular, the blue emission was found to be structured with spectral wavelengths at 440 nm and 450 nm associated with different spatial EM modes. These new measurements are the first to detail high order solitonic interactions in higher order electromagnetic modes and to record different spectral emission wavelengths associated with different higher order spatial modes. These results are not well matched to current theoretical models for supercontinuum generation developed for the fundamental EM mode. The lower zero dispersion wavelengths associated with higher EM modes in PCF enable previously undetected engagement of these modes in supercontinuum generation and propagation.","PeriodicalId":320610,"journal":{"name":"The International Commission for Optics","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133044548","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: 1
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