Journal articles on the topic 'Laser cooling'

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1

SUGIYAMA, Kazuhiko, and Jun YODA. "Laser cooling." SHINKU 32, no. 6 (1989): 537–44. http://dx.doi.org/10.3131/jvsj.32.537.

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2

Wineland, David J., and Wayne M. Itano. "Laser Cooling." Physics Today 40, no. 6 (June 1987): 34–40. http://dx.doi.org/10.1063/1.881076.

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3

SHIMIZU, Fujio. "On Laser Cooling." Review of Laser Engineering 29, no. 12 (2001): 765–66. http://dx.doi.org/10.2184/lsj.29.765.

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4

Padua, S., C. Xie, R. Gupta, H. Batelaan, T. Bergeman, and H. Metcalf. "Transient laser cooling." Physical Review Letters 70, no. 21 (May 24, 1993): 3217–20. http://dx.doi.org/10.1103/physrevlett.70.3217.

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5

Steane, Andrew, and Christopher Foot. "Multiphoton laser cooling." Nature 347, no. 6289 (September 1990): 127–28. http://dx.doi.org/10.1038/347127a0.

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6

Rosa, M. D. "Laser-cooling molecules." European Physical Journal D 31, no. 2 (November 2004): 395–402. http://dx.doi.org/10.1140/epjd/e2004-00167-2.

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7

Nie, Shuzhen, Tianzhuo Zhao, Xiaolong Liu, Pubo Qu, Yuchuan Yang, and Yuheng Wang. "The Effect of Cooling Layer Thickness and Coolant Velocity on Crystal Thermodynamic Properties in a Laser Amplifier." Micromachines 14, no. 2 (January 23, 2023): 299. http://dx.doi.org/10.3390/mi14020299.

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Laser diode pumped solid-state lasers (DPSSLs) have been widely used in many fields, and their thermal effects have attracted more and more attention. The laser diode (LD) side-pumped amplifier, as a key component of DPSSLs, is necessary for effective heat dissipation. In this paper, instead of the common thermal analysis based only on a crystal rod model, a fluid–structure interaction model including a glass tube, cooling channel, coolant and crystal rod is established in numerical simulation using ANSYS FLUENT for the configuration of an LD array side-pumped laser amplifier. The relationships between cooling layer thickness, coolant velocity and maximum temperature, maximum equivalent stress, inlet pressure and the convective heat transfer coefficient are analyzed. The results show that the maximum temperature (or maximum equivalent stress) decreases with the increase in the coolant velocity; at low velocity, a larger cooling layer thickness with more coolant is not conductive enough for improved heat dissipation of the crystal rod; at high velocity, when the cooling layer thickness is above or below 1.5 mm, the influence of the cooling layer thickness on the maximum temperature can be ignored; and the effect of the cooling layer thickness on the maximum equivalent stress at high velocity is not very significant. The comprehensive influence of various factors should be fully considered in the design process, and this study provides an important reference for the design and optimization of a laser amplifier and DPSSL system.
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8

Ye, Zhibin, Xiaolong Zhou, Shu Jiang, Meng Huang, Fei Wu, and Dongge Lei. "Immersed liquid cooling Nd:YAG slab laser oscillator." Chinese Optics Letters 21, no. 8 (2023): 081401. http://dx.doi.org/10.3788/col202321.081401.

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9

Stenholm, S. "Laser cooling and trapping." European Journal of Physics 9, no. 4 (October 1, 1988): 242–49. http://dx.doi.org/10.1088/0143-0807/9/4/001.

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10

Aspect, A., R. Bonifacio, F. Casagrande, and L. A. Lugiato. "Bistability in Laser Cooling." Europhysics Letters (EPL) 7, no. 6 (November 15, 1988): 499–504. http://dx.doi.org/10.1209/0295-5075/7/6/004.

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11

Rivlin, L. A., and A. A. Zadernovsky. "Laser cooling of semiconductors." Optics Communications 139, no. 4-6 (July 1997): 219–22. http://dx.doi.org/10.1016/s0030-4018(97)00123-5.

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12

Tarbutt, M. R. "Laser cooling of molecules." Contemporary Physics 59, no. 4 (October 2, 2018): 356–76. http://dx.doi.org/10.1080/00107514.2018.1576338.

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13

Kaiser, Robin, Anders Kastberg, and Giovanna Morigi. "Laser Cooling of Matter." Journal of the Optical Society of America B 20, no. 5 (May 1, 2003): 883. http://dx.doi.org/10.1364/josab.20.000883.

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14

Nemova, Galina, and Raman Kashyap. "Laser cooling of solids." Reports on Progress in Physics 73, no. 8 (July 13, 2010): 086501. http://dx.doi.org/10.1088/0034-4885/73/8/086501.

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15

Cohen-Tannoudji, C. "Non–ergodic laser cooling." Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences 355, no. 1733 (December 15, 1997): 2219–21. http://dx.doi.org/10.1098/rsta.1997.0120.

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16

Muys, P. "Stimulated radiative laser cooling." Laser Physics 18, no. 4 (April 2008): 430–33. http://dx.doi.org/10.1134/s11490-008-4012-4.

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17

HACHISU, Hidekazu. "Laser Cooling of Atoms." Journal of the Society of Mechanical Engineers 112, no. 1087 (2009): 482–83. http://dx.doi.org/10.1299/jsmemag.112.1087_482.

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18

Ertmer, W., and H. Wallis. "Laser cooling of antihydrogen." Hyperfine Interactions 44, no. 1-4 (March 1989): 319–33. http://dx.doi.org/10.1007/bf02398681.

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19

Liang, Edison P., and Charles D. Dermer. "Laser cooling of positronium." Optics Communications 65, no. 6 (March 1988): 419–24. http://dx.doi.org/10.1016/0030-4018(88)90116-2.

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20

Sheik-Bahae, M., and R. I. Epstein. "Laser cooling of solids." Laser & Photonics Review 3, no. 1-2 (February 24, 2009): 67–84. http://dx.doi.org/10.1002/lpor.200810038.

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21

Muys, P. "Stimulated radiative laser cooling." Laser Physics 18, no. 4 (April 2008): 430–33. http://dx.doi.org/10.1134/s1054660x08040129.

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22

S Mendhe, G. "Advancements in Laser Cooling and Magnetic Trapping Techniques." International Journal of Science and Research (IJSR) 13, no. 1 (January 5, 2024): 1508–10. http://dx.doi.org/10.21275/sr24125165150.

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23

Baker, C. J., W. Bertsche, A. Capra, C. Carruth, C. L. Cesar, M. Charlton, A. Christensen, et al. "Laser cooling of antihydrogen atoms." Nature 592, no. 7852 (March 31, 2021): 35–42. http://dx.doi.org/10.1038/s41586-021-03289-6.

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AbstractThe photon—the quantum excitation of the electromagnetic field—is massless but carries momentum. A photon can therefore exert a force on an object upon collision1. Slowing the translational motion of atoms and ions by application of such a force2,3, known as laser cooling, was first demonstrated 40 years ago4,5. It revolutionized atomic physics over the following decades6–8, and it is now a workhorse in many fields, including studies on quantum degenerate gases, quantum information, atomic clocks and tests of fundamental physics. However, this technique has not yet been applied to antimatter. Here we demonstrate laser cooling of antihydrogen9, the antimatter atom consisting of an antiproton and a positron. By exciting the 1S–2P transition in antihydrogen with pulsed, narrow-linewidth, Lyman-α laser radiation10,11, we Doppler-cool a sample of magnetically trapped antihydrogen. Although we apply laser cooling in only one dimension, the trap couples the longitudinal and transverse motions of the anti-atoms, leading to cooling in all three dimensions. We observe a reduction in the median transverse energy by more than an order of magnitude—with a substantial fraction of the anti-atoms attaining submicroelectronvolt transverse kinetic energies. We also report the observation of the laser-driven 1S–2S transition in samples of laser-cooled antihydrogen atoms. The observed spectral line is approximately four times narrower than that obtained without laser cooling. The demonstration of laser cooling and its immediate application has far-reaching implications for antimatter studies. A more localized, denser and colder sample of antihydrogen will drastically improve spectroscopic11–13 and gravitational14 studies of antihydrogen in ongoing experiments. Furthermore, the demonstrated ability to manipulate the motion of antimatter atoms by laser light will potentially provide ground-breaking opportunities for future experiments, such as anti-atomic fountains, anti-atom interferometry and the creation of antimatter molecules.
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24

Bradley, C. C., J. G. Story, J. J. Tollett, J. Chen, N. W. M. Ritchie, and R. G. Hulet. "Laser cooling of lithium using relay chirp cooling." Optics Letters 17, no. 5 (March 1, 1992): 349. http://dx.doi.org/10.1364/ol.17.000349.

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25

Yi-min, Li, Yang Dong-hai, and Wang Yi-qiu. "Laser cooling in phase fluctuating laser field." Acta Physica Sinica (Overseas Edition) 7, no. 6 (June 1998): 414–21. http://dx.doi.org/10.1088/1004-423x/7/6/002.

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26

OHGAKI, TOMOMI. "SIMULATION OF LASER-COMPTON COOLING OF ELECTRON BEAMS." International Journal of Modern Physics A 15, no. 16 (June 30, 2000): 2587–97. http://dx.doi.org/10.1142/s0217751x00002664.

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We study a method of laser-Compton cooling of electron beams. Using a Monte Carlo code, we evaluate the effects of the laser-electron interaction for transverse cooling. The optics with and without chromatic correction for the cooling are examined. The laser-Compton cooling for JLC/NLC at E0=2 GeV is considered.
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27

Shen, Hong, Jun Hu, and Zheng Qiang Yao. "Cooling Effects in Laser Forming." Materials Science Forum 663-665 (November 2010): 58–63. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.58.

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In the laser forming of metal plates, there is a substantial waiting time required for cooling down the workpiece so that a steep temperature gradient can be reestablished during the next scan. Currently, there are no standard techniques that can be used to reduce this waiting time. This paper discusses the possibility of using non-natural cooling systems to cool down the workpiece. A numerical model of thermo-mechanical analyses with moving boundary conditions to simulate the traveling of laser beam and moving forced water cooling system is presented. Based on the proposed model, cooling effects under different laser powers and scanning velocities with various cooling conditions are investigated. The results show that the forced water cooling can significantly reduce the temperature with no adverse effect on the forming of plates.
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28

Youhua Jia, Youhua Jia, Biao Zhong Biao Zhong, and Jianping Yin Jianping Yin. "Mechanism of refrigeration cycle on laser cooling of solids." Chinese Optics Letters 10, no. 3 (2012): 031401–31404. http://dx.doi.org/10.3788/col201210.031401.

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29

Xucheng Wang, Xucheng Wang, Huadong Cheng Huadong Cheng, Ling Xiao Ling Xiao, Benchang Zheng Benchang Zheng, Yanling Meng Yanling Meng, Liang Liu Liang Liu, and Yuzhu Wang Yuzhu Wang. "Laser cooling of rubidium 85 atoms in integrating sphere." Chinese Optics Letters 10, no. 8 (2012): 080201–80203. http://dx.doi.org/10.3788/col201210.080201.

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30

Li, Dehui, Jun Zhang, and Qihua Xiong. "Demonstration of Net Laser Cooling in a Semiconductor." Asia Pacific Physics Newsletter 02, no. 02 (August 2013): 27–28. http://dx.doi.org/10.1142/s2251158x1300026x.

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Laser cooling of solids was first proposed by Pringsheim in 1929, more than 30 years before the invention of laser. With the advantages of being compact and free of vibration and cryogen, the laser cooling of solids shows very promising applications such as all solid-state cryocoolers and atheraml lasers. The basic principle of laser cooling in solids is based on the anti-Stokes luminescence, during which the emitted photons carry more energy than the incident photons. The thermal energy contained in lattice vibrations in solids is carried away by the emitted photons during the anti-Stokes luminescence processes resulting in the cooling of solids. To achieve net laser cooling, there are very strict requirements for materials: high external quantum efficiency, high crystalline quality and properly spaced energy levels. So far, the materials suitable for laser cooling are confined to rare-earth doped glasses or direct band gap semiconductors due to those special requirements.
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31

Li, Zongze. "Analysis of the Principle and State-of-art Applications for Laser Cooling and Trapping." Highlights in Science, Engineering and Technology 72 (December 15, 2023): 821–26. http://dx.doi.org/10.54097/tey58q72.

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As a matter of fact, the laser cooling and trapping has already been widely used in various fields in advanced atoms controlling. With this in mind, this study gives a systematical analysis of the principle of laser cooling and trapping, and the development of them in the recent years. To be specific, this study will discuss the applications that has invented in the recent year based on the laser colling and trapping (especially for the state-of-art facilities), and makes a comparison between the concepts of laser cooling and laser trapping accordingly. Then, based on the analysis and evaluations, the limitations of laser cooling and laser trapping have been shown, and the future outlooks are also claimed and demonstrated as well. To sum up, the study concludes by discussing the limitations of these techniques, and gives some methods to solve these issues. Overall, these results shed light on guiding further exploration of laser cooling and trapping.
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32

Ruan, X. L., and M. Kaviany. "Advances in Laser Cooling of Solids." Journal of Heat Transfer 129, no. 1 (June 18, 2006): 3–10. http://dx.doi.org/10.1115/1.2360596.

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We review the progress on laser cooling of solids. Laser cooling of ion-doped solids and semiconductors is based on the anti-Stokes fluorescence, where the emitted photons have a mean energy higher than that of the absorbed photons. The thermodynamic analysis shows that this cooling process does not violate the second law, and that the achieved efficiency is much lower than the theoretical limit. Laser cooling has experienced rapid progress in rare-earth-ion doped solids in the last decade, with the temperature difference increasing from 0.3to92K. Further improvements can be explored from the perspectives of materials and structures. Also, theories need to be developed, to provide guidance for searching enhanced cooling performance. Theoretical predictions show that semiconductors may be cooled more than ion-doped solids, but no success in bulk cooling has been achieved yet after a few attempts (due to the fluorescence trapping and nonradiative recombination). Possible solutions are discussed, and net cooling is expected to be realized in the near future.
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33

Huang, Jing, Bao Hua Zhu, Yuan Yuan Wu, and Xi Huang. "Laser Cooling Mechanisms of Chromium Atomic Beam." Advanced Materials Research 189-193 (February 2011): 3768–71. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.3768.

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A theoretical investigation of 52Cr atomic beam in optical traps was reported, the Doppler and sub-Doppler laser cooling forces were discussed and some characteristics of these forces were shown based on the semi-classical theory. The simulative results indicate that the atomic beam can be collimated by these laser cooling forces, especially by sub-Doppler laser cooling force.
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34

N. Prudnikov, Oleg. "Laser Cooling Dynamics of Neutral Atoms in a Light Field with Nonuniform Polarization for Fixed Interaction Time." Siberian Journal of Physics 6, no. 1 (March 1, 2011): 24–35. http://dx.doi.org/10.54362/1818-7919-2011-6-1-24-35.

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Laser cooling dynamics of neutral atoms with a closed optical transition Jg → Je in light fields with nonuniform polarization formed by counterpropagating waves with linear, circular or elliptical polarization was considered. For the case of finite interaction time of atoms with light field both mechanisms of Doppler and Sub-Doppler laser cooling affected on atoms in ensemble having different velocities were taken into account. We get qualitative relations on a base of numerical analysis in a frame of quasiclassical treatment of laser cooling. These relations allow to define optimal parameters of cooling waves, i.e. polarization, detuning from atomic resonance and intensity of light waves for the most rapid and dip laser cooling from initially wide momentum distribution for finite interaction time of atoms with laser field
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35

Langreth, R. N. "Laser Cooling Made Simpler, Cheaper." Science News 138, no. 14 (October 6, 1990): 215. http://dx.doi.org/10.2307/3974883.

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36

Schreck, Florian, and Klaasjan van Druten. "Laser cooling for quantum gases." Nature Physics 17, no. 12 (November 18, 2021): 1296–304. http://dx.doi.org/10.1038/s41567-021-01379-w.

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37

Das, Anupam, Aarti Sarda, and Abhishek De. "Cooling devices in laser therapy." Journal of Cutaneous and Aesthetic Surgery 9, no. 4 (2016): 215. http://dx.doi.org/10.4103/0974-2077.197028.

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38

Vilensky, M. Y., Y. Prior, and I. Sh Averbukh. "Feedback-controlled nonresonant laser cooling." Laser Physics 19, no. 4 (April 2009): 752–61. http://dx.doi.org/10.1134/s1054660x09040318.

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39

Li, Yun. "A chip for laser cooling." Nature Physics 16, no. 9 (September 2020): 898. http://dx.doi.org/10.1038/s41567-020-01048-4.

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40

Lorenz, Susanne, Ulrich Hohenleutner, and Michael Landthaler. "Cooling Devices in Laser Therapy." Medical Laser Application 16, no. 4 (January 2001): 283–91. http://dx.doi.org/10.1078/1615-1615-00033.

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41

Sukachev, D., K. Chebakov, A. Sokolov, A. Akimov, N. Kolachevsky, and V. Sorokin. "Laser cooling of thulium atoms." Optics and Spectroscopy 111, no. 4 (October 2011): 633–38. http://dx.doi.org/10.1134/s0030400x11110282.

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42

Isaev, Timur A. "Direct laser cooling of molecules." Uspekhi Fizicheskih Nauk 190, no. 03 (December 2018): 313–28. http://dx.doi.org/10.3367/ufnr.2018.12.038509.

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43

Chu, Steven. "Laser Cooling of Neutral Atoms." Optics and Photonics News 1, no. 12 (December 1, 1990): 40. http://dx.doi.org/10.1364/opn.1.12.000040.

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44

Cheng, Long, Laura B. Andre, Alexander J. Salkeld, Luis H. C. Andrade, Sandro M. Lima, Junior R. Silva, Daniel Rytz, and Stephen C. Rand. "Laser cooling of Yb3+:KYW." Optics Express 28, no. 3 (January 21, 2020): 2778. http://dx.doi.org/10.1364/oe.381682.

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45

DeJongh, Fritz. "Laser cooling of TeV muons." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 472, no. 3 (October 2001): 585–89. http://dx.doi.org/10.1016/s0168-9002(01)01313-4.

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46

Andrianov, S. N., and V. V. Samartsev. "Laser cooling of impurity crystals." Quantum Electronics 31, no. 3 (March 31, 2001): 247–51. http://dx.doi.org/10.1070/qe2001v031n03abeh001926.

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47

Metcalf, H. "Laser cooling of neutral atoms." Optics News 15, no. 12 (December 1, 1989): 32. http://dx.doi.org/10.1364/on.15.12.000032.

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48

Vredenbregt, E. J. D., and K. A. H. van Leeuwen. "Laser cooling and trapping visualized." American Journal of Physics 71, no. 8 (August 2003): 760–65. http://dx.doi.org/10.1119/1.1578063.

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49

Rand, Stephen C. "Raman laser cooling of solids." Journal of Luminescence 133 (January 2013): 10–14. http://dx.doi.org/10.1016/j.jlumin.2012.01.019.

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50

Urakawa, J., K. Kubo, N. Terunuma, T. Taniguchi, Y. Yamazaki, K. Hirano, M. Nomura, et al. "Electron beam cooling by laser." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 532, no. 1-2 (October 2004): 388–93. http://dx.doi.org/10.1016/j.nima.2004.06.112.

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