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Готові списки джерел за темами / Dipole trapping

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Добірка наукової літератури з теми "Dipole trapping"

Автор: Grafiati

Опубліковано: 10 березня 2023

Оновлено: 19 липня 2025

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Статті в журналах з теми "Dipole trapping"

1

Al-Marzoug, S. M. "Scattering of a discrete soliton by impurity in dipolar Bose–Einstein condensates." International Journal of Modern Physics B 28, no. 30 (2014): 1450214. http://dx.doi.org/10.1142/s0217979214502142.

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Scattering of a discrete soliton by a single impurity in dipolar Bose–Einstein condensate is investigated numerically. The results show that the increase of the strength of dipolar interactions leads to repeated reflection, transmission and trapping regions due to energy exchange between the center of mass motion and the internal modes of the impurity. However, increasing the strength of the attractive nonlocal dipole–dipole interaction will result in different scattering windows. While the dipole–dipole interaction can significantly expand the trapping region of the system, nevertheless trans

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2

Webster, S. A., G. Hechenblaikner, S. A. Hopkins, J. Arlt, and C. J. Foot. "Dipole force trapping of caesium atoms." Journal of Physics B: Atomic, Molecular and Optical Physics 33, no. 19 (2000): 4149–55. http://dx.doi.org/10.1088/0953-4075/33/19/323.

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3

Williams, J. F., J. B. Wang, and C. J. Carter. "A Monte Carlo Study of Radiation Trapping Effects." Australian Journal of Physics 50, no. 3 (1997): 645. http://dx.doi.org/10.1071/p96099.

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A Monte Carlo simulation of radiative transfer in an atomic beam is carried out to investigate the effects of radiation trapping on electron–atom collision experiments. The collisionally excited atom is represented by a simple electric dipole, for which the emission intensity distribution is well known. The spatial distribution, frequency and free path of this and the sequential dipoles were determined by a computer random generator according to the probabilities given by quantum theory. By altering the atomic number density at the target site, the pressure dependence of the observed atomic li

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4

Sripakdee, Chatchawal. "The Investigation of WGM Effective Potential from Micro PANDA Ring Resonator." Applied Mechanics and Materials 866 (June 2017): 337–40. http://dx.doi.org/10.4028/www.scientific.net/amm.866.337.

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In this work, the whispering gallery mode effective potential generated by micro PANDA ring resonator for a two level system of atom – electric field coupling is investigated and presented. The depth of trapping potential is proportional to electric intensity and damping rate of transition of dipole polarization. The trial harmonics potential well is established by using dipole potential under ac Stark effect. The optimum intensity and lifetime for each WGM trapping wavelengths under the effect of thermal noise is reported.

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5

UTAMA, Satriya, Deddy El AMIN, M. Arif SAIFUDIN, et al. "Magnetic Shielding Implementation in the Small Satellite Reaction Wheel." INCAS BULLETIN 16, no. 1 (2024): 107–16. http://dx.doi.org/10.13111/2066-8201.2024.16.1.11.

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Low Earth orbit satellites face challenges from Earth's magnetic field, causing attitude disturbances. Attaining a magnetic-dipole-free satellite is crucial. Layout optimization and in-orbit dipole compensation are common methods, but layout optimization can be impractical. In contrast, in-orbit dipole compensation struggles with rapidly changing magnetic dipoles like those from reaction wheel motors. This research proposes an alternative solution using Mu-metal, known for shielding against magnetic exposure. This shield can be applied to trap the magnetic field generated by the motors. Ground

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6

Hu, Fang-Qi, and Ju-Kui Xue. "Breathing dynamics of a trapped impurity in a dipolar Bose gas." Modern Physics Letters B 28, no. 22 (2014): 1450185. http://dx.doi.org/10.1142/s0217984914501851.

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With the consideration of impurity-bosons coupling and dipole–dipole interactions (DDI), we study the breathing dynamics of a harmonically trapped impurity interacting with a separately trapped background of dipolar Bose gas. By using the variational approach, the breathing equations, the breathing frequencies and the effective potentials governing the breathing dynamics of the impurity in dipolar gas are obtained. The effects of DDI, impurity-bosons interaction and external trapping potentials on breathing dynamics of impurity are discussed. We find that, because of the anisotropic and long-r

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7

Goldstein, E., P. Pax, K. J. Schernthanner, B. Taylor, and P. Meystre. "Influence of the dipole-dipole interaction on velocity-selective coherent population trapping." Applied Physics B Laser and Optics 60, no. 2-3 (1995): 161–67. http://dx.doi.org/10.1007/bf01135858.

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8

DAVYDOVA, T. A., and V. M. LASHKIN. "Drift-wave trapping by drift vortices." Journal of Plasma Physics 58, no. 1 (1997): 11–18. http://dx.doi.org/10.1017/s002237789700562x.

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The possibility for a drift dipole vortex to trap free drift waves is demonstrated. Drift perturbations can be trapped near the centre of the vortex or at its sides. The localization domain and eigenfrequencies of trapped modes are obtained.

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9

Lee, Jong-Hoon, Junghwan Kim, Geunjin Kim, et al. "Introducing paired electric dipole layers for efficient and reproducible perovskite solar cells." Energy & Environmental Science 11, no. 7 (2018): 1742–51. http://dx.doi.org/10.1039/c8ee00162f.

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10

Yang, Yonghao, Zhigang Li, Chunhui Wu, et al. "Nanostructured interfacial dipole layers for high-performance and highly stable nonvolatile organic field-effect transistor memory." Journal of Materials Chemistry C 10, no. 9 (2022): 3292–99. http://dx.doi.org/10.1039/d1tc05927k.

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Дисертації з теми "Dipole trapping"

1

Harsono, Andrian. "Dipole trapping and manipulation of ultra-cold atoms." Thesis, University of Oxford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437007.

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2

Levonian, David (David S. ). "A Cavity-stabilized diode laser for dipole trapping of ytterbium." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/105998.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2015.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 99-103).<br>Bad-cavity lasers using a gain medium with a narrower linewidth than the laser cavity have the potential to achieve very narrow linewidths and extremely long coherence times. Such lasers could serve as active fre

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3

Van, Dongen Janelle. "Simultaneous cooling and trapping of 6Li and 85/87Rb." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/351.

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This thesis provides a summary of the laser system constructed in the Quantum Degenerate Gases Laboratory for laser cooling and trapping of 85/87Rband 6Li as well as of experiments that have been pursued in our lab to date. The first chapter provides an overview of the experimental focus of the QDG lab. The second and third chapters provide the fundamental theory behind laser cooling and trapping. The fourth chapter provides details of the laser system. The fifth chapter describes an experiment performed on the subject of dual-injection, performed in collaboration with Dr. James Booth of the B

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4

Gatto, Alexandro [Verfasser]. "Trapping fermionic potassium atoms in a quasi-electrostatic optical dipole potential / Alexandro Gatto." Bonn : Universitäts- und Landesbibliothek Bonn, 2012. http://d-nb.info/104408149X/34.

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5

Webster, Stephen. "Prospects for Bose-Einstein condensation in caesium : cold collisions and dipole-force trapping." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325563.

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6

Blackhurst, Tyler D. "Numerical Investigation of Internal Wave-Vortex Dipole Interactions." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3133.

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Three-dimensional linear ray theory is used to investigate internal waves interacting with a Lamb-Chaplygin pancake vortex dipole. These interactions involve waves propagating in the same (co-propagating) and opposite (counter-propagating) horizontal directions as the dipole translation. Co-propagating internal waves in the vertical symmetry plane between the vortices of the dipole can approach critical levels where the wave energy is absorbed by the dipole or where the waves are overturned and possibly break. As wave breaking cannot be simulated with this linear model, changes in wave steepne

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7

Kalita, Mukut R. "Search for a Permanent Electric Dipole Moment of ²²⁵Ra." UKnowledge, 2015. http://uknowledge.uky.edu/physastron_etds/34.

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The observation of a permanent electric dipole moment (EDM) in a non-degenerate system would indicate the violation of discrete symmetries of Time reversal (T) or combined application of Charge (C) and Parity (P) symmetry violation through the CPT theorem. The diamagnetic 225Ra atom with nuclear spin I=1/2 is a favorable candidate for an EDM search. Experimental sensitivity to its EDM is enhanced due to its high atomic mass and the increased Schiff moment of its octupole deformed nucleus. An experimental setup is developed where laser cooled neutral radium atoms are collected in a magneto-opti

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8

Krasselt, Cornelius. "Dynamik der Photo-Lumineszenz-Unterbrechung von Halbleiter-Nanokristallen in elektrischen Feldern." Doctoral thesis, Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-172910.

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Diese Arbeit untersucht die Photo-Lumineszenz (PL)-Unterbrechung (Blinken) einzelner in Polymer-Nanopartikeln eingebetteter CdSe/CdS Halbleiter-Nanokristalle (Quantenpunkte) im Einfluss elektrischer Gleich- und Wechselfelder mittels Weitfeld-Mikroskopie. Hierbei emittieren die einzelnen Quantenpunkte trotz kontinuierlicher Anregung mit einer zwischen hellen An- und dunklen Aus-Zuständen variierenden PL-Intensität. Die Ergebnisse zeigen, dass die Dynamik dieses Blinkens durch Wechselfelder stark beeinflusst wird und von deren Feldstärke, teilweise auch deren Feldfrequenz abhängt. Für zunehmende

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9

Kondo, Jorge Douglas Massayuki. "Estudo de colisões entre átomos de Rydberg ultrafrios em amostras atômicas aprisionadas numa armadilha óptica de dipolo." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-03022015-171234/.

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Neste trabalho, estudamos colisões entre átomos de Rydberg ultrafrios em uma amostra atômica de alta densidade aprisionada em uma armadilha óptica de dipolo (AOD) tipo QUEST (Quasi Electrostatic Trap). Nossos objetivos incluíam testar a manifestação de fenômenos de muitos corpos bem como estudar efeitos de anisotropia nos processos colisionais envolvendo dois corpos. Para isso, escolhemos o processo colisional descrito por 5/2+5/2(+2)3/2+(2)7/2 no intervalo de 37 ≤ ≤47. O processo foi estudado na ausência e presença de campo elétrico estático, originando as ressonâncias Förster. Os resul

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10

Xiao, Hau-Yl, and 蕭豪毅. "Trapping Cold Atoms with an Optical Dipole Trap." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/14163296521974752188.

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Книги з теми "Dipole trapping"

1

Evans, D. R. Non-dipolar magnetic field models and patterns of radio emission: Uranus and Neptune compared : final report. National Aeronautics and Space Administration, 1994.

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2

United States. National Aeronautics and Space Administration., ed. Non-dipolar magnetic field models and patterns of radio emission: Uranus and Neptune compared : final report. National Aeronautics and Space Administration, 1994.

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3

United States. National Aeronautics and Space Administration., ed. Non-dipolar magnetic field models and patterns of radio emission: Uranus and Neptune compared : final report. National Aeronautics and Space Administration, 1994.

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4

Trenkwalder, Andreas. Design of a Resonator Dipole Trap: A Report About the Design of a Resonator Enhanced Optical Dipole Trap Aimed for Trapping a Mixture of Fermionic Species. VDM Verlag Dr. Mueller E.K., 2008.

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5

Wolf, E. L. More about the Atmosphere, Molecules, and their Interaction with Radiation. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198769804.003.0007.

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Electric dipole radiation is possible from certain molecules (but not with diatomics like oxygen and nitrogen) to make them active in intercepting and re-radiating electromagnetic waves in the atmosphere. Molecules of the greenhouse gas variety include carbon dioxide, ozone and water, as discussed in this chapter. Molecular contributions to the greenhouse heat-trapping effect are described, including sophisticated satellite measurements. The role of molecular absorption in altering the ground-level solar spectrum absorbed by solar farms is summarized. In this chapter we provide a molecular bas

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Частини книг з теми "Dipole trapping"

1

Letokhov, Vladilen. "Laser trapping of atoms." In Laser Control of Atoms and Molecules. Oxford University PressOxford, 2007. http://dx.doi.org/10.1093/oso/9780198528166.003.0006.

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Abstract That the laser cooling and trapping of neutral atoms are interrelated has already been said in the introduction to Chapter 5. We shall, therefore, now consider various techniques whereby cold atoms can be trapped. All the known techniques for trapping laser-cooled neutral atoms can be classified according to a few basic methods. These basic methods are optical trapping using the forces of the electric dipole interaction between atoms and laser fields, magnetic trapping based on the use of the forces of the magnetic dipole interaction, mixed magneto-optical trapping using simultaneous interaction between atoms and magnetic and laser fields, and mixed gravitooptical and gravito-magnetic trapping. Traps for neutral atoms can have a wide variety of geometries and dimensions: (a) macroscopic traps with a size of a »λ, (b) microscopic traps with a size of a ≃λ/2, (c) various combinations of macroscopic and microscopic traps (one-, two-, and three-dimensional) in the case of optical lattices, and finally (d) nanoscopic traps with a size of a «λ/2.

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2

"Spinor Condensates in Optical Dipole Traps." In Optical Trapping and Manipulation of Neutral Particles Using Lasers. WORLD SCIENTIFIC, 2006. http://dx.doi.org/10.1142/9789812774897_0018.

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3

"Trapping of Single Atoms in an Off-Resonance Optical Dipole Trap." In Optical Trapping and Manipulation of Neutral Particles Using Lasers. WORLD SCIENTIFIC, 2006. http://dx.doi.org/10.1142/9789812774897_0022.

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4

Shimoda, Koichi. "Trapping and Cooling of Neutral Atoms with the Dipole Force of a Laser Beam." In Laser Spectroscopy. Elsevier, 1989. http://dx.doi.org/10.1016/b978-0-12-251930-7.50009-1.

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5

"Relationships Among Ferroelectric Fatigue, Electronic Charge Trapping, Defect-Dipoles, and Oxygen Vacancies in Perovskite Oxides." In Science and Technology of Integrated Ferroelectrics. CRC Press, 2001. http://dx.doi.org/10.1201/9781482283365-46.

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6

Raspertova, Ilona, and Rostyslav Lampeka. "NITRONE AS LIGANDS: STRUCTURE, PROPERTIES AND FUNCTIONALITY." In Development of scientific, technological and innovation space in Ukraine and EU countries. Publishing House “Baltija Publishing”, 2021. http://dx.doi.org/10.30525/978-9934-26-151-0-36.

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This paper aims to analyze and systematize aspects of coordination chemistry of nitrones and the field of application of coordination compounds based of nitrones. Nitrones as a class of organic compounds have been known for a long time. They are used in organic synthesis as starting materials for acyclic compounds and as «spin trapping agents» for studying various processes in biological systems. A significant amount of nitrone derivatives has pharmacological activity and is a part of some drugs. The high electron density on the oxygen atom of the nitronе group promotes the formation of coordination compounds. This property of nitrones is widely used to influence their reactivity. Nitrones can also be potential corrosion inhibitors due to their ability to form stable complexes. But the coordination chemistry of this class of compounds remains poorly studied. The literature describes coordination compounds of metals with aliphatic, six-membered aromatic and some heterocyclic compounds. Analysis of the literature showed that nitronе-based coordination compounds attract considerable attention with their useful properties, in particular: they can affect the passage of 1,3-dipolar cycloaddition reactions, act as catalysts in Heck, Kumada and ketone hydrogenation reactions, show antitumor activity against HepG2 cells. The wide range of applications of coordination compounds of nitrones and their small number indicate the ability to generate a significant number of new compounds with new properties.

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Тези доповідей конференцій з теми "Dipole trapping"

1

Koksal, Okan, Ting-Wei Hsu, Junyeob Song, et al. "Large Optical Tweezer Arrays Generated by Integrated Optical Meta-Microscopes." In CLEO: Science and Innovations. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_si.2024.sth1f.2.

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We demonstrate meta-microscopes based on doublet metalenses that form high-quality optical dipole trap arrays capable of trapping single atoms and discuss how these microscopes can be designed to robustly for maximum performance.

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2

Zhang, Jiaming, Ken Morita, Verdad C. Agulto, Kosaku Kato, and Makoto Nakajima. "Electron Dynamics of Ultrafast Vector Vortex Laser Irradiation." In JSAP-Optica Joint Symposia. Optica Publishing Group, 2024. https://doi.org/10.1364/jsapo.2024.19p_c43_6.

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The dynamical effects of lasers have garnered widespread attention, holding significant research value in fields such as optical tweezers (optical trapping), laser processing, and photonic nanojets [1,2]. Studies related to optical dynamical effects primarily focus on dielectric materials [3,4]. On the other hand, research on interactions between optical light and single-charged electrons is mainly focused on the conduction electron excitations in the semiconductors involving the quantum transitions, leaving their dynamics insufficiently explored. Recently, we reported an experiment using ultr

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3

Watts, Molly, Gadi Afek, Sarah Dickson, et al. "Controlling electric dipole moments in levitated optomechanics." In Optical Trapping and Optical Micromanipulation XIX, edited by Kishan Dholakia and Gabriel C. Spalding. SPIE, 2022. http://dx.doi.org/10.1117/12.2634071.

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4

Bradac, C., M. L. Juan, B. Besga, G. Molina-Terriza, and T. Volz. "Observation of Atomic Dipole Forces in Optically Trapped Nanodiamonds Containing NV Centres, in a Liquid Environment." In Optical Trapping Applications. OSA, 2015. http://dx.doi.org/10.1364/ota.2015.ott1d.6.

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5

Antipov, Sergey, and Sergei Nagaitsev. "Electron cloud trapping in combined function dipole magnets." In 38th International Conference on High Energy Physics. Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.282.0773.

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6

Zhang, Weihua, and Olivier J. F. Martin. "Optical trapping and sensing with plasmonic dipole antennas." In SPIE NanoScience + Engineering, edited by Mark I. Stockman. SPIE, 2010. http://dx.doi.org/10.1117/12.864225.

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7

Chu, Steven. "Laser cooling and trapping." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.tujj1.

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Анотація:

The purpose of this tutorial is to introduce the listener to the rapidly developing field of laser cooling and trapping. Doppler cooling is first discussed followed by the new mechanism of cooling based on ground-state energy level shifts in light fields with polarization gradients. Next, the basic concepts of magnetic traps, optical dipole force traps (optical tweezers), and the magnetooptic trap are considered. Selected uses of these traps and cooling techniques are given to elucidate the broad utility of these techniques.

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8

Lee, Heun-Jin, Charles Adams, Nir Davidson, et al. "Dipole Trapping, Cooling in Traps, and Long Coherence Times." In ATOMIC PHYSICS 14: Fourteenth International Conference on Atomic Physics. AIP, 1994. http://dx.doi.org/10.1063/1.2946010.

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9

Brandt, L., C. Muldoon, E. Brainis, and A. Kuhn. "Towards a scalable dipole-trapping scheme for neutral atoms." In 2008 Conference on Lasers and Electro-Optics (CLEO). IEEE, 2008. http://dx.doi.org/10.1109/cleo.2008.4551977.

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10

Gould, P. L., A. L. Migdall, H. J. Metcalf, and W. D. Phillips. "Dipole laser trap for neutral atoms." In International Laser Science Conference. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/ils.1986.wf3.

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We describe a relatively large volume dipole laser trap for the confinement of sodium atoms. Two counterpropagating beams, tuned below resonance, with foci separated by approximately one con focal parameter, provide radial confinement via the dipole force and axial confinement by balancing the radiation pressures of the two beams.1 Identical circular polarization for both beams prevents optical pumping and serves to maintain a two-state system. Alternation of the two beams2 is necessary to avoid the effects of standing-wave heating. Additionally, the trapping cycle is alternated with a Doppler

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