Relevant bibliographies by topics / Modulation angulaire

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Modulation angulaire'

Author: Grafiati
Published: 8 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Modulation angulaire"

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Bertho, A., M. Dos Santos, A. François, and F. Milliat. "Histoire de la prise en charge des cancers bronchopulmonaires non à petites cellules de stade précoce : de la chirurgie à la radiothérapie stéréotaxique." Radioprotection 55, no. 3 (2020): 165–72. http://dx.doi.org/10.1051/radiopro/2020050.

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Avant le début du XXe siècle, le cancer bronchopulmonaire était une maladie rare. Aujourd’hui, c’est le quatrième cancer le plus fréquent en France et concerne, chaque année, près de 50 000 patients. Si à travers l’histoire, la pierre angulaire de la prise en charge thérapeutique du cancer bronchopulmonaire reste la chirurgie, la radiothérapie en est un des piliers, notamment chez les patients à haut risque chirurgical. La radiothérapie est apparue quelques mois après la découverte des rayons X en 1896 et, rapidement, des protocoles standardisés ont été mis au point par les premiers radiobiolo
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Wang, Huan, Jiajun Linghu, Xuezhi Wang, Qiyi Zhao, and Hao Shen. "Angular-Dependent THz Modulator with Hybrid Metal-Graphene Metastructures." Nanomaterials 13, no. 13 (2023): 1914. http://dx.doi.org/10.3390/nano13131914.

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The coupling effects of surface plasmon resonance (SPR) from metamaterials induce variation in both the frequency and intensity of plasmonic modes. Here, we report an angular-dependent THz modulator with hybrid metal–graphene metastructures. The metastructures composed of the period gold split-rod arrays on top of a monolayer graphene, which show redshift modulation in the THz region with an increasing incident angle due to the strong out-of-plane magnetic flux introduced by the clockwise circular current at the oblique incidence. By utilizing graphene-based actively tunable conductor with ion
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Wang, Jian, Jun Liu, Shuhui Li, Yifan Zhao, Jing Du, and Long Zhu. "Orbital angular momentum and beyond in free-space optical communications." Nanophotonics 11, no. 4 (2021): 645–80. http://dx.doi.org/10.1515/nanoph-2021-0527.

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Abstract Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension of light waves into a helical phase structure, has given rise to many applications in optical manipulation, microscopy, imaging, metrology, sensing, quantum science, and optical communications. Light beams carrying OAM feature two distinct characteristics, i.e., inherent orthogonality and unbounded states in principle, which are suitable for capacity scaling of optical communications. In this paper, we give an overview of OAM and beyond in free-space optical communications. The fundamentals of OAM
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Liu, Peijun, Yanan Fu, Xi Xie, Changjun Min, Yuquan Zhang, and Xiaocong Yuan. "High-efficiency monolayer metallic metasurface for modulation of orbital angular momentum." Chinese Optics Letters 20, no. 12 (2022): 123601. http://dx.doi.org/10.3788/col202220.123601.

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Huang Xianming, 黄先明, 王飞 Wang Fei, 陆宝乐 Lu Baole та 白晋涛 Bai Jintao. "基于轨道角动量交换实现巨克尔非线性效应调控". Acta Optica Sinica 42, № 22 (2022): 2219002. http://dx.doi.org/10.3788/aos202242.2219002.

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Xiao, Min, Axiu Cao, Cheng Xu, Hui Pang, Yongqi Fu, and Qiling Deng. "Design and Fabrication of Continuous Surface Optical Field Modulator for Angular Spectrum Discreteness Compensation." Micromachines 15, no. 8 (2024): 952. http://dx.doi.org/10.3390/mi15080952.

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The light homogenizing element is a crucial component of the illumination system of the lithography machine. Its primary purpose is to realize the uniform distribution of energy. However, it suffers from a common issue, which is angular spectrum discreteness, which significantly impacts light uniformity. To address this, we design and fabricate random micro-cylindrical lens arrays to obtain a small-angle Gaussian optical field, which can compensate for the angular spectrum discreteness. By adjusting the pitches and curvature radii of the micro-cylindrical lenses separately, we are able to mani
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Horunlu, Kardelen, and Yasin Çelik. "PERFORMANCE ANALYSIS OF ADAPTIVE MIMO TECHNIQUES FOR ANGULAR DIVERSITY RECEIVER-BASED VISIBLE LIGHT COMMUNICATION." Journal of Naval Sciences and Engineering 20, no. 2 (2024): 163–89. https://doi.org/10.56850/jnse.1496134.

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Correlation between the channels is the primary factor that restricts data rates in multiple-input multiple-output visible light communications (MIMO-VLC). Different receiver designs have been proposed to reduce this correlation value, while adaptive modulations that perform better under the correlated channel effect have been studied on the transmitter side. In this study, we conducted a performance analysis of MIMO-VLC systems by utilizing adaptive MIMO modulations at the transmitter side and angular diversity receiver (ADR) structures at the receiver side. As adaptive modulations, created u
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Liu, Jun, Shuang Zheng, Shi Chen, et al. "High-speed spatial light modulation based on photon dimension mapping assisted by an integrated mode multiplexer." Applied Physics Letters 120, no. 13 (2022): 131103. http://dx.doi.org/10.1063/5.0076652.

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Photon dimension mapping provides an efficient way to learn from each other's strengths to offset their own weaknesses in a variety of applications. By mapping the conventional amplitude modulation to spatial mode modulation and employing an integrated orbital angular momentum (OAM) mode multiplexer, we present an integrated approach to break the spatial light modulation speed limit and implement the high-speed silicon-chip-assisted OAM encoding information transfer. The silicon chip is formed by a multi-mode micro-ring resonator with angular grating embedded in the inner wall and two bus wave
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Buzzelli, A., P. de Bernardis, S. Masi, N. Vittorio, and G. de Gasperis. "Optimal strategy for polarization modulation in the LSPE-SWIPE experiment." Astronomy & Astrophysics 609 (January 2018): A52. http://dx.doi.org/10.1051/0004-6361/201730754.

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Context. Cosmic microwave background (CMB) B-mode experiments are required to control systematic effects with an unprecedented level of accuracy. Polarization modulation by a half wave plate (HWP) is a powerful technique able to mitigate a large number of the instrumental systematics. Aims. Our goal is to optimize the polarization modulation strategy of the upcoming LSPE-SWIPE balloon-borne experiment, devoted to the accurate measurement of CMB polarization at large angular scales. Methods. We departed from the nominal LSPE-SWIPE modulation strategy (HWP stepped every 60 s with a telescope sca
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Belousov, Igor, Veniamin Samoseiko, and Alecsandr Saushev. "Assessment of filtering properties of asynchronous electric drive with pulse width modulation." E3S Web of Conferences 363 (2022): 01025. http://dx.doi.org/10.1051/e3sconf/202236301025.

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The process of pulse-width modulation in the converter-motor system is considered. It is noted that the main task of pulse width modulation of voltage formed by the electronic key converter in the converter-motor system is to reduce current pulsations during the modulation period. It is established, that the dynamic process of current change in the electric machine during the period of pulse-width modulation can be approximated by R, L filter. It is shown, that the most important task of pulse-width modulation is minimization of modulation error by current in electric motor. The analysis of po
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Dissertations / Theses on the topic "Modulation angulaire"

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Javahiraly, Nicolas. "Méthode d'analyse optique du module de rigidité. Application à un capteurs photonique de position angulaire et de couple à modulation d'amplitude et de polarisation." Université Louis Pasteur (Strasbourg) (1971-2008), 2002. http://www.theses.fr/2002STR13092.

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Nous présentons le principe, le concept et le développement technologique de deux types de capteurs : un capteur de position angulaire à fibre optique basé sur les phénomènes de couplage de modes, et un capteur de couple photonique basé sur la modulation de la polarisation. Après une présentation de l'état de l'art en matière de mesure du couple et de position angulaire, nous analysons la propagation de la lumière dans les fibres optiques en considérant ses aspects électromagnétiques et opto-géométriques, applicables aux capteurs à modulation de polarisation en développant le phénomène de pola
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Keller, Niels. "Étude angulaire du deuxième champ critique dans les supraconducteurs à fermions lourds UPt3, URu2Si2 et CeCu2Si2." Université Joseph Fourier (Grenoble ; 1971-2015), 1994. http://www.theses.fr/1994GRE10119.

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Cette these est consacree a l'etude experimentale du deuxieme champ critique des supraconducteurs a fermions lourds upt#3, uru#2si#2 et cecu#2si#2. La supraconductivite de ces composes, qui est presumee de nature non conventionnelle, est supposee influencer fortement la dependance angulaire du deuxieme champ critique h#c#2 dans le plan basal du compose hexagonal upt#3 et des composes tetragonaux uru#2si#2 et cecu#2si#2. Ainsi, la mesure de la variation angulaire de h#c#2 peut aider a distinguer le type de parametre d'ordre supraconducteur. La variation angulaire de h#c#2 dans le plan basal et
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Fourati, Aroua. "Modélisation électro-magnéto-mécanique d'une machine asynchrone sous approche angulaire : Application au diagnostic des défauts de roulements en régime non stationnaire." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI078.

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Dans une machine à induction, le diagnostic de défauts par analyse du signal du courant électrique nécessite la connaissance du comportement dynamique de la machine. En plus des sources externes d'excitation, le comportement du moteur est gouverné par un ensemble de phénomènes périodiques liés sa géométrie angulairement périodique et couplés par leur caractère multiphysique. En présence d’un défaut de roulement, les grandeurs mesurables présenteront des composantes à sa fréquence caractéristique combinée aux fréquences caractéristiques du moteur. La compréhension des interactions, en particuli
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Ernould, Clément. "Développement et application d’une méthode à haute résolution angulaire pour la mesure des gradients d’orientation et des déformations élastiques par microscopie électronique à balayage." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0225.

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La compréhension des mécanismes de déformation dans les matériaux cristallins passe par la caractérisation fine des microstructures. Dans le cadre de la microscopie électronique à balayage, la mesure précise des gradients d’orientation et des déformations élastiques du cristal est l’objectif des méthodes dites à haute résolution angulaire. Pour cela, elles emploient des techniques de corrélation d’images numériques afin de recaler les clichés de diffraction électronique. Cette thèse propose une méthode de recalage originale. Le champ de déplacement à l’échelle du scintillateur est décrit par u
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Klein, Maren. "Modulation phonologischer und semantischer Prozesse im Sprachnetzwerk: Eine kombinierte TMS-fMRT-Studie." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-165709.

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Insbesondere bildgebende Verfahren wie die funktionelle Magnetresonanztomografie (fMRT), haben innerhalb der letzten Jahre verdeutlicht, dass verschiedene Sprachkomponenten in weit verzweigten kortikalen Netzwerken im menschlichen Gehirn repräsentiert sind. Die in dieser Arbeit durchgeführte Studie kombinierte transkranielle Magnetstimulation (TMS) und fMRT mit dem Ziel phonologische und semantische Sprachnetzwerke detaillierter zu charakterisieren. Bisherige Studien identifizierten u. a. den linken Gyrus supramarginalis (SMG) und posterioren Anteil des Gyrus frontalis inferior (pIFG) als Kern
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Vitullo, Dashiell. "Propagation of Photons through Optical Fiber: Spin-Orbit Interaction and Nonlinear Phase Modulation." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/20708.

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We investigate two medium-facilitated interactions between properties of light upon propagation through optical fiber. The first is interaction between the spin and intrinsic orbital angular momentum in a linear optical medium. This interaction gives rise to fine structure in the longitudinal momenta of fiber modes and manifests in rotational beating effects. We probe those beating effects experimentally in cutback experiments, where small segments are cut from the output of a fiber to probe the evolution of both output polarization and spatial orientation, and find agreement between theoretic
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McLaren, Melanie. "Tailoring quantum entanglement of orbital angular momentum." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95868.

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Thesis (PhD)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: High-dimensional quantum entanglement offers an increase in information capacity per photon; a highly desirable property for quantum information processes such as quantum communication, computation and teleportation. As the orbital angular momentum (OAM) modes of light span an infinite-dimensional Hilbert space, they have become frontrunners in achieving entanglement in higher dimensions. In light of this, we investigate the potential of OAM entanglement of photons by controlling the parameters in both the generation and m
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Chu, Jiaqi. "Orbital angular momentum encoding/decoding of 2D images for scalable multiview colour displays." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/274903.

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Three-dimensional (3D) displays project 3D images that give 3D perceptions and mimic real-world objects. Among the rich varieties of 3D displays, multiview displays take advantage of light’s various degrees of freedom and provide some of the 3D perceptions by projecting 2D subsampling of a 3D object. More 2D subsampling is required to project images with smoother parallax and more realistic sensation. As an additional degree of freedom with theoretically unlimited state space, orbital angular momentum (OAM) modes may be an alternative to the conventional multiview approaches and potentially pr
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Maurer, Michael [Verfasser], and Yiannos [Akademischer Betreuer] Manoli. "System dimensioning, digital postprocessing, and nonideality control for electromechanical Delta-Sigma-Modulator based Angular Rate Detection." Freiburg : Universität, 2018. http://d-nb.info/1167159624/34.

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Mmbaga, Paul Fahamuel. "Study, analysis and application of optical OFDM, Single Carrier (SC) and MIMO in Intensity Modulation Direct Detection (IM/DD)." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/15952.

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With the rapid growth of wireless data demands and saturation of radio frequency (RF) capacity, visible light communication (VLC) has become a promising candidate to complement conventional RF communication, especially for indoor short range applications. However the performance of the system depends on the propagation and type of system used. An optical Orthogonal Frequency Division Multiplexing (O-OFDM) together with multiple input multiple output (MIMO) in different scenario and modulation techniques are studied in the thesis. A novel optical wireless communication (OWC) multi-cell system w
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Books on the topic "Modulation angulaire"

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1957-, Goupil M. J., Hansen Carl J, and United States. National Aeronautics and Space Administration., eds. On the role of resonances in nonradial pulsators. National Aeronautics and Space Administration, 1997.

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Book chapters on the topic "Modulation angulaire"

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Stevens, Peter M. "Growth Modulation for Angular and Length Correction." In Pediatric Lower Limb Deformities. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-17097-8_4.

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Redžić, M., A. Beganović, L. Čiva, R. Jašić, A. Skopljak-Beganović, and S. Vegar-Zubović. "Quality control of angular tube current modulation." In IFMBE Proceedings. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-4166-2_85.

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Stevens, Peter M. "Growth Modulation for Angular and Length Correction." In Pediatric Lower Limb Deformities. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-55767-5_6.

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Gross, Richard S., Steven L. Marcus, and Jean O. Dickey. "Modulation of the Seasonal Cycle in Length-of-Day and Atmospheric Angular Momentum." In International Association of Geodesy Symposia. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04709-5_76.

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Djordjevic, Ivan B., and Zhen Qu. "Coded Orbital Angular Momentum Modulation and Multiplexing Enabling Ultra-High-Speed Free-Space Optical Transmission." In Optical Wireless Communications. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30201-0_16.

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Moin, Muhammad, Mehrunisa Moin, A. Qadoos, Abdul Waheed Anwar, and Junaid Hassan. "Perspective Chapter: Recent Developments in Digital Holography Approach Employing Digital Advanced Micromirror Devices." In Holography and Applications [Working Title]. IntechOpen, 2024. https://doi.org/10.5772/intechopen.1007795.

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This investigation explores digital holography using digital micromirror devices (DMDs), examining theoretical foundations and practical applications. We delve into the principles of diffraction, the structure and operation of DMDs, and their holography-relevant properties. The study discusses various methods for producing holographic displays, addressing challenges, and suggesting solutions. Computational strategies for creating holograms for 3D exhibitions employing DMDs and advanced approaches for holographic image modernization are explored. Current findings noted the future of DMDs in hol
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Straumann, Dominik, and Alexander A. Tarnutzer. "Vestibular physiology." In Oxford Textbook of Vertigo and Imbalance, 2nd ed. Oxford University PressOxford, 2025. https://doi.org/10.1093/med/9780198834380.003.0002.

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Abstract This chapter aims to discuss a potpourri of clinically relevant normal features (i.e. ‘laws’ or stereotypic properties) of vestibular-evoked eye movements. This includes the physiological bases of the angular vestibulo-ocular reflex, angular velocity steps, and how the vestibular resting rate is modulated when the subject is exposed to such stimuli. Furthermore, the principles of Alexander’s law (i.e. the gaze-dependent modulation of horizontal spontaneous nystagmus intensity) and the pathophysiology of vertical spontaneous (i.e. upbeat and downbeat) nystagmus are reviewed. We will al
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Miyoshi Tasuku, Takagi Motoki, Yimit Adiljan, Hagihara Yoshihiro, and Komeda Takashi. "Task-Dependent Gastrocnemius Fiber Movement in Humans while Standing as Revealed by Ultrasound Images." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-522-7-378.

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Although electromyographic (EMG) activities of the gastrocnemius muscle (GAS) increase while a body sways voluntarily and rises on tiptoe from a standing position, the effects of movement speed on the upright postural task-dependent GAS fibers are unclear. The present study was to demonstrate GAS fiber movement during anterior-posterior bodily swaying and tiptoe-heel standing tasks using a time series of ultrasound images. Subjects achieved two postural tasks, each under three movement frequencies, 0.1Hz, 0.2Hz, and 0.3Hz, while sinuous-like modulations of ankle angular displacement patterns w
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Zhan, Bingnan, Changliang Wu, Xiaokang Liu, Pei Huang, and Peiyu Yu. "Research on the Scheme of Secondary Re-Modulation Based on Time Grating." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2024. http://dx.doi.org/10.3233/saem240008.

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This paper proposed a new type of time grating which adopts the two-stage secondary re-modulation scheme, where the output signals from the first-stage induction electrodes are applied as the excitation signals to the second-stage excitation electrodes, so that the second stage induction electrodes generate the traveling wave output signals with effective measurement period. The measurement period over the full measurement range of the sensor is increased from N to 2N, and the resolution of the sensor is doubled. The second level induction electrode adopts a differential structure design, whic
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Conference papers on the topic "Modulation angulaire"

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Robertson, Evan, Tyler Cramer, Frankie Reid, Jaxon Wiley, J. Keith Miller, and Eric G. Johnson. "Phase only modulation of coherently coupled Orbital Angular Momentum beams for precise laser ranging." In Frontiers in Optics. Optica Publishing Group, 2024. https://doi.org/10.1364/fio.2024.jtu4a.33.

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Phase only modulation of CCOAM beams provides a system with 15 mm resolution is achieved. This system’s resolution is independent of beam size and propagation allowing precise measurement of a target over 8 m away.
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Marsal, Nicolas, Delphine Wolfersberger, and Yue Chai. "Nonlinear propagation of linearly polarized Bessel beams for orbital-angular-momentum modulation." In Nonlinear Optics and Applications XIV, edited by Anatoly V. Zayats, Mario Bertolotti, and Alexei M. Zheltikov. SPIE, 2025. https://doi.org/10.1117/12.3055432.

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Chen, Yiyang, Yuanxin Qiu, and Matthew D. Lew. "Combining Excitation and Emission Modulation Resolves the Angular Separation between a Pair of Dipole Emitters." In Novel Techniques in Microscopy. Optica Publishing Group, 2025. https://doi.org/10.1364/ntm.2025.nm1c.4.

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We demonstrate that modulating the polarization of fluorescence excitation and emission distinguishes dipole pairs from single wobbling dipoles and measures the orientation centroid and angular separation between a pair of dipole emitters with high precision.
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Robertson, E., J. K. Miller, and E. G. Johnson. "Laser ranging using coherently coupled Orbital Angular Momentum beams with phase only modulation." In 2024 IEEE Photonics Conference (IPC). IEEE, 2024. https://doi.org/10.1109/ipc60965.2024.10799880.

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Imajuku, Wataru, and Daichi Aoki. "Analysis on Angular Noise Tolerance of Binary Phase Shift Keying Based Time Domain Index Modulation Signals." In 2024 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR). IEEE, 2024. http://dx.doi.org/10.1109/cleo-pr60912.2024.10676603.

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Hodgkinson, Ian, Qi hong Wu, and Adrian McPhun. "Rugate filters with spatially-modulated nanostructures." In Optical Interference Coatings. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/oic.1998.fb.3.

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We have designed and fabricated birefringent rugate filters (birugates) by modulating the columnar nanostructure of titanium oxide and zirconium oxide during vacuum deposition. To produce the modulation the angular position of the substrate, and hence the deposition angle, is changed in a systematic way by a computer-controlled stepper drive. The deposition parameters (deposition rate ≈ 0.1nm/s, oxygen back-fill pressure ≈ 2×10–4mbar and substrate temperature ≪ 300°C) are within a regime where columnar growth tracks the applied deposition angle, according to a modified version of the tangent r
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Sabet, Arash A., Eftyxios Christoforou, Benjamin Zatlin, Guy M. Genin, and Philip V. Bayly. "Deformation of the Human Brain Induced by Mild Angular Acceleration." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-175638.

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Deformation of the human brain was measured in tagged magnetic resonance images (MRI) obtained dynamically during angular acceleration of the skull. This study was undertaken to provide much needed experimental data for the quantitative study of traumatic brain injury (TBI). A custom device was made to impart mild angular acceleration to the skull of a human volunteer inside an MR scanner. Images with a superimposed grid of “tag” lines were obtained using spatial modulation of magnetization (SPAMM) in a fast gradient-echo imaging sequence. Images of the moving brain were obtained dynamically b
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Zotov, Sergei A., Igor P. Prikhodko, Alexander A. Trusov, and Andrei M. Shkel. "Frequency modulation based angular rate sensor." In 2011 IEEE 24th International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2011. http://dx.doi.org/10.1109/memsys.2011.5734490.

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Sison, Miguel, and Sophie Brasselet. "Real-time imaging of molecular organization by point scanning nonlinear fast polarization modulation." In Polarized light and Optical Angular Momentum for biomedical diagnostics, edited by Jessica C. Ramella-Roman, Hui Ma, I. Alex Vitkin, Daniel S. Elson, and Tatiana Novikova. SPIE, 2021. http://dx.doi.org/10.1117/12.2578547.

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Vicuña-Hernández, Verónica, Lorenzo Marrucci, and Bruno Piccirillo. "Orbital angular momentum broadening in Poincaré beams." In Frontiers in Optics. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/fio.2022.jw4a.1.

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We present a theoretical study and experimental measurements of a broadened orbital angular momentum power spectrum due to the phase modulation in the generation of spatially varying polarization beams and monstar singularities.
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