Littérature scientifique sur le sujet « Heterodyne effect »
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Articles de revues sur le sujet "Heterodyne effect"
Tan, Zhenkun, Jiao Wang, Yingxiu Kong, Sichen Lei et Pengfei Wu. « An Effective Method for Enhancing Heterodyne Efficiency by Comparing the Effect of Degree of Polarization on an Uplink Path and a Downlink Path ». Photonics 9, no 11 (25 octobre 2022) : 798. http://dx.doi.org/10.3390/photonics9110798.
Texte intégralCuberes, M. Teresa. « Intermittent-Contact Heterodyne Force Microscopy ». Journal of Nanomaterials 2009 (2009) : 1–5. http://dx.doi.org/10.1155/2009/762016.
Texte intégralYamamoto, Naoko, Yuya Shinohara, Hiroyuki Kishimoto, Norihiro Matsumoto et Yoshiyuki Amemiya. « Dynamics of nanoparticles in elongated rubber investigated with heterodyne XPCS ». Acta Crystallographica Section A Foundations and Advances 70, a1 (5 août 2014) : C1331. http://dx.doi.org/10.1107/s2053273314086689.
Texte intégralReno, Jessica, Bhanu Korremula et Dominick J. Casadonte. « Heterodyne I : Enhancing sonochemical efficiency through application of the heterodyne effect : An initial study ». Ultrasonics Sonochemistry 56 (septembre 2019) : 143–49. http://dx.doi.org/10.1016/j.ultsonch.2019.04.014.
Texte intégralGershgorin, B., V. Yu Kachorovskii, Y. V. Lvov et M. S. Shur. « Field effect transistor as heterodyne terahertz detector ». Electronics Letters 44, no 17 (2008) : 1036. http://dx.doi.org/10.1049/el:20080737.
Texte intégralSong, Xue, Guofeng Shen et Dmitry Grishenkov. « A comparative study on detection of polymer-shelled microbubbles by different excitation pulses ». Journal of the Acoustical Society of America 154, no 1 (1 juillet 2023) : 482–93. http://dx.doi.org/10.1121/10.0020293.
Texte intégralXiong, Si Ya Dong, Yi Yang, Chao Peng, Zhen Rong Zhang et Zheng Bin Li. « The Effect of Polarization Control in Loss-Compensated Recirculating Delayed Self-Heterodyne Interferometry Measurement of Laser Linewidth ». Applied Mechanics and Materials 303-306 (février 2013) : 859–62. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.859.
Texte intégralIzumi, Ryo, Yan Jun Li, Yoshitaka Naitoh et Yasuhiro Sugawara. « Study of high–low KPFM on a pn-patterned Si surface ». Microscopy 71, no 2 (11 janvier 2022) : 98–103. http://dx.doi.org/10.1093/jmicro/dfab055.
Texte intégralBelen’kii, Mikhail S. « Effect of atmospheric turbulence on heterodyne lidar performance ». Applied Optics 32, no 27 (20 septembre 1993) : 5368. http://dx.doi.org/10.1364/ao.32.005368.
Texte intégralLin, Yao, John Schill et Run-Wen Wang. « Instrumental noise effect in an optical heterodyne profiler ». Applied Optics 33, no 22 (1 août 1994) : 5005. http://dx.doi.org/10.1364/ao.33.005005.
Texte intégralThèses sur le sujet "Heterodyne effect"
Moussa, Ildoko. « Etude d'un système de multiplexage fréquentiel d'un faisceau lumineux par modulation acousto-optique ». Valenciennes, 1985. http://www.theses.fr/1985VALE0006.
Texte intégralKamar, Nihad. « Maîtrise de l'entartrage dans des échangeurs de chaleur via l'utilisation de traitements physiques ». Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0209.
Texte intégralIn order to study the impact of the heterodyne effect on the formation of mineral deposits from domestic water networks in a heat exchanger, an experimental pilot was set up to test this technology on two types of heat exchangers, plate and joint exchanger and platelet exchanger. Several operating parameters such as flow rate, time, and temperature were experimentally tested in order to identify their influence on calcium carbonate precipitation and scale formation in the exchanger. In order to approve the efficiency of the heterodyne effect, a comparison was made with other physical treatments that were tested on the same pilot, namely: ultrasonic treatment at two different frequencies, low frequency, and low-intensity electromagnetic treatment, and the ultrasonic-electromagnetic coupling. The first part of this work focused on numerical modeling, two software were used, Phreeqc interactive and COMSOL Multiphysics 6.0. On the one hand identify the nature of crystallized polymorphism, whether at the pilot-scale or at the industrial scale. And on the other hand to identify the sensitive areas for the formation of the deposit in order to know the location of the ultrasonic system, and to model the dispersion of the ultrasonic waves at different frequencies and power, either in the water or in the metallic surfaces of the exchanger. The results of the numerical analysis obtained by these models were then compared to the experimental measurements.A series of laboratory-scale experiments, with or without the physical treatment, is performed on an exchanger that has been insulated from the outside with an insulating cover and equipped with thermocouples in order to evaluate the impact of the physical treatment tested on the heat transfer. 100 Liters of water with a scaling capacity (30°F) was heated to 50°C within the exchanger for 72 hours in a closed circuit. Due to the high content of dissolved calcium carbonate and the decrease of its solubility when the temperature increases, a precipitate of calcium carbonate forms inside the heat exchanger, but also in the water, as well as on the walls of the exchanger. At the end of each experiment, the deposit is dissolved in 5% (vol.) nitric acid and analyzed by ICP-AES spectroscopy to perform a complete material balance and determine the amount of scale precipitated on the exchanger plates. A dismantling of the exchanger was carried out in each type of test in order to analyze the distribution of the deposit in the whole of the plates by 3D digital microscopy and confocal microscopy, to analyze the precipitated polymorphism by RAMAN spectroscopy and scanning electron microscopy, and the size distribution of the precipitated particles by laser granulometry. The results obtained show that the heterodyne-guided waves allow reducing 65,46% of the deposit. On the other hand, the treatment that allows better reduction is the electromagnetic treatment with a percentage of reduction of 76,83%, without changing the nature of polymorphism. At present, all the physical treatments tested allow a reduction in the amount deposited, but do not prevent the total formation of the deposit. These methods aim to minimize the occurrence of fouling. They are preventive rather than corrective methods
Malnou, Maxime. « High-Tc Josephson mixers for Terahertz detection ». Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066260/document.
Texte intégralIn this thesis, we used a high-Tc superconducting material, YBa2Cu3O7, to make a heterodyne mixer. We aimed at evaluating its ability for terahertz detection. We also worked towards the fabrication of an on-chip local oscillator, designed with an array of Josephson junctions. The originality of this study stems from a unique way of engineering Josephson junctions, based on ion irradiation. We described the complex physics of ion irradiated Josephson junctions through a modified version of quasi-classical Usadel equations, which have originally been derived for non-homogenous low-Tc superconductivity. The d-c electronic transport measurements showed that our irradiated Josephson junctions are well described by the resistively shunted junction model. Furthermore, we explained the high-frequency mixing operations with the three-port model, and proved the heterodyne detection of signals up to 400 GHz. We identified the heterodyne conversion efficiency as a product of three terms: two depending on impedance mismatches and the third one characterizing the intrinsic down-conversion ability of the Josephson junction. The dynamic range of the mixer, its conversion efficiency and its dependence on local oscillator power were measured and found to be in agreement with simulations. An array of synchronized junctions is necessary to create a powerful and spectrally pure local oscillator from Josephson oscillations. We identified the external locking as the only efficient mechanism to synchronize YBa2Cu3O7 irradiated junctions, showing its effect in simulated systems. We also reported a first evidence of synchronization in a two dimensional array of irradiated Josephson junctions
Dremetsika, Evdokia. « Nonlinear optics in graphene : Detailed characterization for application in photonic circuits ». Doctoral thesis, Universite Libre de Bruxelles, 2018. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/264211.
Texte intégralDoctorat en Sciences de l'ingénieur et technologie
info:eu-repo/semantics/nonPublished
Crotty, Maureen. « Signal to Noise Ratio Effects on Aperture Synthesis for Digital Holographic Ladar ». University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1355245759.
Texte intégralWang, Junyang. « Dicke narrowing and speed-dependent effects in dispersion signals : Influence on assessment of concentration and spectral parameters by noise-immune cavity-enhanced optical heterodyne molecular spectrometry ». Doctoral thesis, Umeå universitet, Institutionen för fysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-70235.
Texte intégralVadalà, Giovanni. « Disorder, propagation and non-linear effects in photonic crystal waveguides ». Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3422364.
Texte intégralQuesto lavoro di tesi presenta alcuni nuovi risultati sulle proprietà ottiche e sugli effetti del disordine sulla propagazione in guide d'onda a cristallo fotonico bidimensionale. Lo studio parte dai concetti di base dei cristalli fotonici (Cap. 1), quali la loro struttura a bande, fondamentali per comprendere appieno le proprietà dei cristalli fotonici bidimensionali (Cap. 2). Nel Cap. 3 sono approfondite le proprietà di propagazione della luce nelle guide d'onda realizzate in cristalli bidimensionali, in particolare la loro tipica relazione di dispersione e il regime di propagazione noto come regime di Luce Lenta (Slow Light regime). Nello stesso capitolo, si introduce, inoltre, un modello teorico per il Four-Wave Mixing, fenomeno non lineare solo recentemente osservato in questo tipo di guide. Il Cap. 4 introduce brevemente i processi di fabbricazione per questi dispositivi; vengono quindi discussi i punti critici di tali processi, modellizzati come disordine estrinseco, e l'impatto che questi hanno sulle proprietà di propagazione della guida. Gli ultimi due capitoli sono relativi alla parte sperimentale di questo lavoro. Sono state infatti studiate due tecniche per la caratterizzazione delle guide d'onda a cristallo fotonico. La prima è la mappa di riflettanza tempo-lunghezza d'onda (Cap. 5), sviluppato presso Thales Research and Technology (Paris, France), che permette di valutare le proprietà di propagazione della guida in funzione della lunghezza d'onda e l'impatto della dispersione indotta dal disordine estrinseco della guida. La seconda è la tecnica Heterodyne Pump-Probe, utilizzato presso il Dipartimento DTU Fotonik, Copenhagen, in una serie di esperimenti atti a indagare il regime di luce lenta e i ritardi ottenibili in tale regime.
Robson, Laura E. « The Spatial Ecology of Eastern Hognose Snakes (Heterodon platirhinos) : Habitat Selection, Home Range Size, and the Effect of Roads on Movement Patterns ». Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20452.
Texte intégralFeautrier, Philippe. « Jonctions SIS en Nb/Al2O3/Nb pour des récepteurs en radioastronomie millimétrique et submillimétrique ». Phd thesis, Grenoble 1, 1992. http://tel.archives-ouvertes.fr/tel-00725267.
Texte intégralSchoelkopf, Robert J. « Studies of noise in Josephson-effect mixers and their potential for submillimeter heterodyne detection ». Thesis, 1995. https://thesis.library.caltech.edu/4221/1/Schoelkopf_rj_1995.pdf.
Texte intégralChapitres de livres sur le sujet "Heterodyne effect"
Humbert, Laurent, Valéry Valle et Mario Cottron. « Identification of Three-dimensional Effects in Cracked Plates from Quasi-heterodyne Interferometry ». Dans Interferometry in Speckle Light, 527–34. Berlin, Heidelberg : Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-57323-1_65.
Texte intégralMlynek, J., Chr Tamm, E. Buhr et W. Lange. « Raman Heterodyne Detection of Radio-Frequency Resonances in Sm Vapor : Effects of Velocity-Changing Collisions ». Dans Springer Series in Optical Sciences, 100–101. Berlin, Heidelberg : Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-540-39664-2_27.
Texte intégral« HETERODYNED KERR EFFECT MEASUREMENTS ». Dans Handbook of Nonlinear Optics, 682–90. CRC Press, 2003. http://dx.doi.org/10.1201/9780203912539-18.
Texte intégralSutton, B. D., J. W. Ferguson, C. Pryer, E. Price et D. Thomas. « Application of Continuous Velocity of Detonation Diagnostics to PE4 Cylinder Tests ». Dans Future Developments in Explosives and Energetics, 135–47. Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/9781839162350-00135.
Texte intégralSutton, B. D., J. W. Ferguson, C. Pryer, E. Price et D. Thomas. « Application of Continuous Velocity of Detonation Diagnostics to PE4 Cylinder Tests ». Dans Future Developments in Explosives and Energetics, 135–47. Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/9781788017855-00135.
Texte intégralActes de conférences sur le sujet "Heterodyne effect"
Manriquez, Jose Soto. « Phase matching memory effect in optical coherent transient effects ». Dans OSA Annual Meeting. Washington, D.C. : Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.thjj5.
Texte intégralIftekharuddin, K. M., et M. A. Karim. « Effect of background radiation noise on heterodyne detection efficiency in the use of a diffraction-free beam ». Dans OSA Annual Meeting. Washington, D.C. : Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.thv3.
Texte intégralZhengfang, Song, Gu Weiyu et Liu Xiachun. « The Optical Heterodyne Detection in a Turbulent Atmosphere ». Dans Optical Remote Sensing. Washington, D.C. : Optica Publishing Group, 1985. http://dx.doi.org/10.1364/ors.1985.tuc3.
Texte intégralDi Gaspare, Alessandra, Valeria Giliberti, Roberto Casini, Ennio Giovine, Florestanto Evangelisti, Dominique Coquillat, Wojciech Knap et al. « Antenna-coupled heterostructure field effect transistors for integrated terahertz heterodyne mixers ». Dans SPIE OPTO, sous la direction de Laurence P. Sadwick et Créidhe M. O'Sullivan. SPIE, 2013. http://dx.doi.org/10.1117/12.2004087.
Texte intégralMarinchio, H., C. Palermo, G. Sabatini, P. Ziade, P. Shiktorov, E. Starikov, V. Gruzinskis et al. « Hydrodynamic simulation of heterodyne terahertz detection in a field effect transistor ». Dans 2010 35th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2010). IEEE, 2010. http://dx.doi.org/10.1109/icimw.2010.5612505.
Texte intégralYan, Zhifeng, Jingxuan Zhu, Xinnan Lin, Frank He, Guozeng Wang, Zhang Yang et Juncheng Cao. « A generic numerical model on heterodyne terahertz detection in field effect transistor ». Dans 2010 3rd International Congress on Image and Signal Processing (CISP). IEEE, 2010. http://dx.doi.org/10.1109/cisp.2010.5647135.
Texte intégralAoyama, Hajime, Fumiaki Kumasaka, Yoshihisa Iba, Takao Taguchi, Masayuki Takeda, Masaki Yamabe, Makoto Fukuda, Masanori Suzuki et Kimiyoshi Deguchi. « Effect of SiC x-ray masks on alignment accuracy of heterodyne alignment ». Dans Microlithography '97, sous la direction de David E. Seeger. SPIE, 1997. http://dx.doi.org/10.1117/12.275796.
Texte intégralShani, Yosi, Rod Alferness, Tom Koch, Uzi Koren, Moshe Oron, Barry I. Miller et Martin G. Young. « Polarization rotation in asymmetric periodic loaded rib waveguides ». Dans Integrated Photonics Research. Washington, D.C. : Optica Publishing Group, 1991. http://dx.doi.org/10.1364/ipr.1991.thh3.
Texte intégralThantu, Napoleon. « Time-resolved optical heterodyne detected raman induced kerr effect spectroscopy for chemical analyis ». Dans Laser Applications to Chemical and Environmental Analysis. Washington, D.C. : OSA, 2001. http://dx.doi.org/10.1364/lacea.2000.pd5.
Texte intégralLiu, Yarui, Su'an Xu, Yaqiong Fu, Fei Qian et Feng Zhang. « Effect of nonlinearity by polarization beam splitter in the double passage heterodyne interferometer ». Dans Seventh International Symposium on Precision Mechanical Measurements, sous la direction de Liandong Yu. SPIE, 2016. http://dx.doi.org/10.1117/12.2214616.
Texte intégralRapports d'organisations sur le sujet "Heterodyne effect"
Mercer, Linden B. 1/F Frequency Noise Effects on Self-Heterodyne Linewidth Measurements for Coherent Communications. Fort Belvoir, VA : Defense Technical Information Center, juillet 1990. http://dx.doi.org/10.21236/ada227942.
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