Advanced Optical Technologies最新文献_第2页

Three-dimensional femtosecond laser inscription of type a-based high-efficiency first-order waveguide Bragg gratings 基于a型高效一阶波导布拉格光栅的三维飞秒激光刻字

IF 1.8

Advanced Optical Technologies Pub Date : 2023-07-25 DOI: 10.3389/aot.2023.1237679

R. Laberdesque, Laura Loi, T. Guérineau, Alain Abou Khalil, S. Danto, T. Cardinal, L. Canioni, Y. Petit

{"title":"Three-dimensional femtosecond laser inscription of type a-based high-efficiency first-order waveguide Bragg gratings","authors":"R. Laberdesque, Laura Loi, T. Guérineau, Alain Abou Khalil, S. Danto, T. Cardinal, L. Canioni, Y. Petit","doi":"10.3389/aot.2023.1237679","DOIUrl":"https://doi.org/10.3389/aot.2023.1237679","url":null,"abstract":"A novel type of waveguide Bragg grating (WBG) is demonstrated based on femtosecond laser-induced Type A refractive index modifications, namely based of the photochemistry of silver species in a specialty ortho-phosphate glass matrix. First-order WBGs are reported in the near-infrared and down to 736 nm in the visible. Relative transmission measurements with a 500 µm long WBGs lead to narrow-bandwidth attenuations (sub-nm spectral FWHM) from 2.29 dB to 6.25 dB for periods from 240 nm to 280 nm, respectively. The corresponding estimated backward coupling coefficients show high values from 1.66 mm-1 up to 2.69 mm-1. Additionally, we report on a true 3D helix-shaped WBG that shows an even stronger relative attenuation of 10.3 dB for a 500 µm long WBG, equivalently corresponding to a backward coupling coefficient of 3.7 mm-1. These novel results pave the way for new silver-based laser-inscribed integrated photonic devices, among which the combination of Bragg gratings to form active/passive optical resonators, but also the direct inscription of WBG at the glass interface for enhanced sensing applications.","PeriodicalId":46010,"journal":{"name":"Advanced Optical Technologies","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47961548","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

Ultrafast laser volume nanostructuring; a limitless perspective 超快激光体积纳米结构;无限的视角

IF 1.8

Advanced Optical Technologies Pub Date : 2023-07-11 DOI: 10.3389/aot.2023.1237524

R. Stoian

引用次数: 0

Making impact 生产的影响

IF 1.8

Advanced Optical Technologies Pub Date : 2022-11-07 DOI: 10.1515/aot-2022-0035

A. Thoss

引用次数: 0

Novel procedure for the identification of a starting point for the CMP 确定CMP起始点的新程序

IF 1.8

Advanced Optical Technologies Pub Date : 2022-10-21 DOI: 10.1515/aot-2022-0022

C. Trum, Sebastian Sitzberger, R. Rascher

{"title":"Novel procedure for the identification of a starting point for the CMP","authors":"C. Trum, Sebastian Sitzberger, R. Rascher","doi":"10.1515/aot-2022-0022","DOIUrl":"https://doi.org/10.1515/aot-2022-0022","url":null,"abstract":"Abstract In the field of precision optics, more and more glass materials that are difficult to machine are being used because of their interesting optical properties. At the same time, the geometries are getting more demanding and the tolerances to be achieved are tighter. The establishment of an efficient process chain is therefore becoming an ever-greater challenge. Particularly in the field of CMP, knowledge of the machining properties of pads and slurries are required to design efficient processes. This knowledge has to be gained through time-consuming in-house tests, as the manufacturers of the consumables are usually only able to provide basic data. In addition, the boundary conditions under which the data were collected are often incomplete defined and thus not comparable. The novel methodical procedure presented here for the initial design of CMP processes is based on a standardized procedure for carrying out the tests. From the resulting database, a starting point for the design of own processes can be identified quickly and unerringly. This article describes the structure of the procedure as well as the necessary background. In addition, the visualization and the procedure for selecting start parameters are discussed using an example application.","PeriodicalId":46010,"journal":{"name":"Advanced Optical Technologies","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43022068","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

EOS annual meeting EOSAM 2022 EOS年会EOSAM 2022

IF 1.8

Advanced Optical Technologies Pub Date : 2022-10-12 DOI: 10.1515/aot-2022-0036

Julia S. Kroisamer, F. Felberer, T. Klein, D. C. Adler, F. Trépanier, C. Eigenwillig, S. Karpf, J. M. Schmitt, R. Huber

引用次数: 0

Ellipsometry study of the infrared-active phonon modes in strained SrMnO3 thin films 应变SrMnO3薄膜中红外有源声子模式的椭偏研究

IF 1.8

Advanced Optical Technologies Pub Date : 2022-08-18 DOI: 10.1515/aot-2022-0009

P. Marsik, R. de Andrés Prada, Andreana Daniil, C. Bernhard

{"title":"Ellipsometry study of the infrared-active phonon modes in strained SrMnO3 thin films","authors":"P. Marsik, R. de Andrés Prada, Andreana Daniil, C. Bernhard","doi":"10.1515/aot-2022-0009","DOIUrl":"https://doi.org/10.1515/aot-2022-0009","url":null,"abstract":"Abstract We performed infrared and time-domain terahertz spectroscopic ellipsometry measurements of thin films of the perovskite antiferromagnetic insulator SrMnO3 that were grown by pulsed laser deposition (PLD) on LaAlO3, SrLaGaO4, and LSAT substrates which yield an epitaxial strain ranging from −0.3 to 1.7%. Taking these thin films as a representative example, we discuss the strategies for analyzing the ellipsometry spectra and extracting the information about the thin film dielectric response that can be equally applied to a variety of oxide based thin films and heterostructures. In particular, for the room temperature spectra we show that the three infrared-active phonon modes of the cubic perovskite structure of SrMnO3 undergo the expected softening with increasing tensile strain. For the SrMnO3 film on SrLaGaO4, we find that the low-energy (TO1) phonon mode reveals anomalous temperature dependence in the vicinity of the Néel temperature of about 170 K that signifies a strong spin-phonon coupling. For the SrMnO3 film on LSAT, we identify some irreversible changes of the infrared ellipsometry spectra that occur as the sample is heated to elevated temperature up to 560 K. These changes of the ellipsometry spectra have been attributed to a partial oxygen loss of the SrMnO3 thin film since they can be reverted with a post annealing treatment under high oxygen pressure.","PeriodicalId":46010,"journal":{"name":"Advanced Optical Technologies","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48705285","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

Combination of a global-search method with model selection criteria for the ellipsometric data evaluation of DLC coatings DLC涂层椭圆数据评估的全局搜索方法与模型选择标准的结合

IF 1.8

Advanced Optical Technologies Pub Date : 2022-07-18 DOI: 10.1515/aot-2022-0014

K. Dorywalski, O. Lupicka, M. Grundmann, C. Sturm

引用次数: 1

Conference and trade show reports 会议和贸易展览报告

IF 1.8

Advanced Optical Technologies Pub Date : 2022-07-14 DOI: 10.1515/aot-2022-0026

引用次数: 0

Ellipsometry and polarimetry – classical measurement techniques with always new developments, concepts, and applications 椭圆偏振测量法和偏振测量法——具有新发展、新概念和新应用的经典测量技术

IF 1.8

Advanced Optical Technologies Pub Date : 2022-07-11 DOI: 10.1515/aot-2022-0025

R. Schmidt‐Grund, C. Sturm, A. Hertwig

引用次数: 1

Certain topics in ellipsometric data modeling with splines: a review of recent developments 用样条曲线进行椭偏数据建模的若干主题:对最近发展的回顾

IF 1.8

Advanced Optical Technologies Pub Date : 2022-07-04 DOI: 10.1515/aot-2022-0006

D. Likhachev

{"title":"Certain topics in ellipsometric data modeling with splines: a review of recent developments","authors":"D. Likhachev","doi":"10.1515/aot-2022-0006","DOIUrl":"https://doi.org/10.1515/aot-2022-0006","url":null,"abstract":"Abstract Dielectric function representation by a variety of polynomial spline functions provides a consistent and efficient method for accurate modeling of the material optical properties in the context of spectroscopic ellipsometry data interpretation. Splines as an elegant and purely mathematical way for such modeling task were introduced about three decades ago. In the following years the use of splines in the area of ellipsometric data analysis became widely utilized. The goal of this review is to provide a self-contained presentation on the current status of the dielectric function modeling by splines for advanced industrial ellipsometry users but, hopefully, it can be useful for some scholarly users as well. It is also intended to promote more extended recognition of the spline-based modeling among optical metrology professionals. Here, a brief description of different ways, – ordinary polynomials, piecewise polynomials (splines), and B(asis)-spline functions, – is presented to parameterize an arbitrary function which can be used as an analytic representation of the dielectric-function curves. A number of particular polynomial-based models for the optical functions of materials and how they may be used in applications are also discussed. Particular attention is paid to different concepts of the efficient and optimal spline construction.","PeriodicalId":46010,"journal":{"name":"Advanced Optical Technologies","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67327968","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