Acousto-Optics and Applications最新文献_第2页

Acousto-optic spectrometer ISEM for ExoMars-2020 space mission: ground measurements and calibrations 用于ExoMars-2020空间任务的声光光谱仪:地面测量和校准

Acousto-Optics and Applications Pub Date : 2019-11-11 DOI: 10.1117/12.2540203

Yury Dobrolenskiy, S. Mantsevich, N. Evdokimova, O. Korablev, A. Fedorova, Y. Kalinnikov, N. Vyazovetskiy, A. Titov, A. Stepanov, A. Sapgir, Ilya Dzyuban, R. Kuzmin, Y. Ivanov, I. Syniavskyi, V. Petrov, V. Smol'yaninova, A. Dokuchaev

引用次数: 3

Applications of collinear acousto-optic diffraction for optical frequency combs generation 共线声光衍射在光频梳生成中的应用

Acousto-Optics and Applications Pub Date : 2019-11-11 DOI: 10.1117/12.2540191

S. Mantsevich, K. Yushkov, A. Voloshin

{"title":"Applications of collinear acousto-optic diffraction for optical frequency combs generation","authors":"S. Mantsevich, K. Yushkov, A. Voloshin","doi":"10.1117/12.2540191","DOIUrl":"https://doi.org/10.1117/12.2540191","url":null,"abstract":"Optical frequency combs (OFC) occupy an important place in modern optoelectronics. Plenty of OFC generation methods and practical application concepts were proposed in recent decade. Among the generation methods are several based on acousto-optic (AO) interaction application. In this paper we theoretically examine new OFC generation method based on joint use of collinear AO diffraction and frequency-shifting loop. This method gives two novel OFC generation schemes. The first one contains collinear AO cell driven by radio-frequency (RF) generator and optical loop connecting optical output and input of the AO cell. The second one includes not only the optical loop but also the optoelectronic feedback connecting the optical output of the system with the piezoelectric transducer of the AO cell. In this case the system operates above the self-excitation threshold without RF generator. Both systems were examined theoretically, it was discovered that they give the possibility to generate OFC’s in several ways. The switching between them is realized by mutual reorientation of a pair of polarizers placed before and behind the AO cell and achromatic half-wave plate included in the optical feedback loop. It is shown that the parameters OFCs obtained in the system with only optical feedback are determined by AO cell material, RF generator signal frequency and magnitude, optical loss and amplification. The system with both optic and electronic feedback gives the unique opportunity to obtain chirped OFCs.","PeriodicalId":405317,"journal":{"name":"Acousto-Optics and Applications","volume":"613 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116319890","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

Broadband immersion laser ultrasonic tomography of graphite-epoxy composite 石墨-环氧复合材料的宽带浸没激光超声层析成像

Acousto-Optics and Applications Pub Date : 2019-11-11 DOI: 10.1117/12.2540104

V. Zarubin, A. Bychkov, V. Simonova, E. Cherepetskaya, A. Karabutov

引用次数: 0

Anisotropic acousto-optic interaction in KRS-5 cubic crystal possessing induced optical anisotropy 具有诱导光学各向异性的KRS-5立方晶体的各向异性声光相互作用

Acousto-Optics and Applications Pub Date : 2019-11-11 DOI: 10.1117/12.2540343

V. Voloshinov, V. Khorkin, M. Kuznetsov, K. Subbotin

{"title":"Anisotropic acousto-optic interaction in KRS-5 cubic crystal possessing induced optical anisotropy","authors":"V. Voloshinov, V. Khorkin, M. Kuznetsov, K. Subbotin","doi":"10.1117/12.2540343","DOIUrl":"https://doi.org/10.1117/12.2540343","url":null,"abstract":"In this paper, we present results of theoretical and experimental investigation of the crystal KRS-5. The carried out research was related to analysis of acoustic, optic and acousto-optic properties of the single crystal KRS-5 that is a solid solution of thallium halides. The material is considered as a medium for applications in infrared acousto-optic devices providing laser beam control. In our analysis, we determined acoustic properties of the material. The values of acoustic phase velocities and their polarization directions were determined for acoustic modes propagating along in the directions [100], [110] and [111]. We also determined the velocities and polarizations of the acoustic waves in the planes (001) and (1 1 0) of the material. In the basic experiment, we used the slow shear acoustic wave propagating along the direction [100] and having the phase velocity value V= 890 m/s. One of the principal goals of the research was directed to experimental confirmation of a possibility to induce birefringence in the cubic material. We managed to induce the birefringence applying an external static pressure to the crystal. Varying the pressure, we controlled the birefringence and obtained difference in magnitudes of the refraction indexes up to Δn =3.5·10-4 . Typical regimes of anisotropic acousto-optic interaction in the birefringent medium were observed. The theoretical results were confirmed by experiments including laser probing of acoustic beams and analysis of Schaefer-Bergmann diagrams. The carried out investigation confirmed the conclusion that the single crystal KRS-5 is a promising material for the applications in the infrared acousto-optic devices.","PeriodicalId":405317,"journal":{"name":"Acousto-Optics and Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132170730","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

Review of acousto-optical devices in advanced microscopy: From 3D scanning via super-resolution to encoded multi-beams 先进显微镜中声光器件的综述:从超分辨率的3D扫描到编码多光束

Acousto-Optics and Applications Pub Date : 2019-11-11 DOI: 10.1117/12.2538419

P. Saggau, N. Ball, P. Bianchini, J. Brockill, W. Brownell, J. R. Cotton, A. Diaspro, M. Duocastella, O. Gliko, V. Iyer, N. Orlova, G. Reddy, A. Tolias, D. Tsyboulski

引用次数: 0

Application of layered structures for mid-infrared acousto-optics 层状结构在中红外声光中的应用

Acousto-Optics and Applications Pub Date : 2019-11-11 DOI: 10.1117/12.2540975

I. Sopko, G. Knyazev, D. Ignatyeva, V. Belotelov

{"title":"Application of layered structures for mid-infrared acousto-optics","authors":"I. Sopko, G. Knyazev, D. Ignatyeva, V. Belotelov","doi":"10.1117/12.2540975","DOIUrl":"https://doi.org/10.1117/12.2540975","url":null,"abstract":"Acousto-optical devices, such as deflectors, modulators or filters, provide an effective way of light control and signal processing techniques. However, their operation range is limited to visible and near-infrared wavelengths due to quadratic law of efficiency decrease of acousto-optical interaction with the wavelength increase. Besides, high-quality acousto-optic materials such as TeO2 are non-transparent at wavelengths larger than 5 µm, while the infrared optical materials provide significantly lower acousto-optic quality. Here we demonstrate how these limitations could be overcome by applying of specifically designed multilayered structures with electromagnetic modes strongly coupled to the incident light using Otto configuration of prism coupling. Such approach could be used for a novel acousto-optical device operating at 8-14 μm wavelengths. Acoustic wave is excited via a piezoelectric transducer in the prism provides modulation of the coupling intensity which results in up to 100% modulation of the transmitted light at the spatial scale less than the ultrasound wavelength. Therefore, it provides the possibility to achieve efficient acousto-optical modulation at frequencies over several gigahertz.","PeriodicalId":405317,"journal":{"name":"Acousto-Optics and Applications","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124918899","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

High-frequency (fRF>1 GHz) acousto-optic modulation using a doubly resonant cavity in a MEMS foundry platform 在MEMS代工平台上使用双谐振腔进行高频(频差> 1ghz)声光调制

Acousto-Optics and Applications Pub Date : 2019-11-11 DOI: 10.1117/12.2541021

S. Valle, K. Balram

引用次数: 0

Acousto-optic programmable filters and the sampling theorem 声光可编程滤波器和采样定理

Acousto-Optics and Applications Pub Date : 2019-11-11 DOI: 10.1117/12.2539309

K. Yushkov

引用次数: 5

Semiautomatic acousto-optical tunable filter calibration from spectrometry in the visible range with deep learning 半自动声光可调滤波器校准光谱在可见光范围与深度学习

Acousto-Optics and Applications Pub Date : 2019-11-11 DOI: 10.1117/12.2541049

K. Anaya, C. Isaza, J. P. Zavala, J. A. Rizzo-Sierra, J. C. Mosquera

{"title":"Semiautomatic acousto-optical tunable filter calibration from spectrometry in the visible range with deep learning","authors":"K. Anaya, C. Isaza, J. P. Zavala, J. A. Rizzo-Sierra, J. C. Mosquera","doi":"10.1117/12.2541049","DOIUrl":"https://doi.org/10.1117/12.2541049","url":null,"abstract":"Acousto-optical filters are devices in which light dispersion occurs through a crystalline translucent material. Particularly, light interacts with a sound-induced spatially distributed. Post-interaction, diffracted light can be analyzed for different purposes. Although acousto-optics has been studied for decades, practical devices applying its principles are relatively recent. Here, experimental and technical procedures are used to obtain the transfer function of an acousto-optical tunable filter (AOTF) based system used as a hyper-spectral photometer. The reflectance responses at given wavelengths are measured and adjusted from a commercially available color pattern set, while typically, those values are set up manually. We propose a semiautomatic strategy to calibrate as a single black box all components of the system including: the light source, the signal generator power with its frequency-amplitude deviation from the full radio frequency set point, the radio-frequency amplifier, the transmission lines, the piezoelectric impedance, and the filter's own transfer function among others. To achieve that, we explored the capability of neural networks with deep learning. The system's input is reflectance data measured with a spectrophotometer at wavelengths from 400 to 700 nm with a step of 10 nm. Then, the AOTF system was used to gather reflectance data from those color pattern tiles from 400 to 700 nm with a step of 1 nm. Both reflectance datasets were adjusted using the proposed deep learning neural network. Results show that it is possible to calibrate an AOTF system by using ceramic tile color patterns and measuring reference reflectance values with a spectrophotometer in the visible range. Furthermore, a neural network can be trained to learn the compensation values, deriving trustable spectral information with a better wavelength resolution.","PeriodicalId":405317,"journal":{"name":"Acousto-Optics and Applications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116170773","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

Photosynthetic energy storage efficiency in biofilms determined by photoacoustics 光声测定生物膜的光合能量储存效率

Acousto-Optics and Applications Pub Date : 2019-11-11 DOI: 10.1117/12.2540510

S. Pogorzelski, P. Rochowski, M. Grzegorczyk

{"title":"Photosynthetic energy storage efficiency in biofilms determined by photoacoustics","authors":"S. Pogorzelski, P. Rochowski, M. Grzegorczyk","doi":"10.1117/12.2540510","DOIUrl":"https://doi.org/10.1117/12.2540510","url":null,"abstract":"Biofilms formed on solid biotic and abiotic substrata, deployed for a certain time period in the coastal waters of the Baltic, were studied with a photoacoustic spectroscopy (PA) technique. Since periphyton appears to be an effective indicator of water quality and stands for a photosynthetic system with a variety of pigments, the aim of the study was to determine biofilm colony photosynthetic apparatus properties (photosynthetic energy storage (ES), PA amplitude and phase spectra) which exhibited a seasonal variability. Nutrient limitation and antrophogenic eutrophication are among the most important factors determining the overall status of water bodies which can be followed by ES efficiency of biofilm cultures. ES turned out to be inversely correlated to biogenic elements concentrations (N (R=-0.76); P (R=-0.81); O (R=-0.67), and positively correlated to primary production (R=0.86) and Chl. a concentration (R= 0.82) in the Baltic (seawater parameters data available at http://satbaltyk.iopan.gda.pl). Photoacoustics can be used to estimate the concentration of photosynthetic pigments in cultures, the efficiency of ES by periphyton photosynthesis can be directly determined by photoacoustics, the effects of environmental stressors: temperature, nutrient limitation, high/dim light and pollutants on the photosynthetic capacity of biofilm colonies can be evaluated.","PeriodicalId":405317,"journal":{"name":"Acousto-Optics and Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130250579","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: 4