Magnetic Trap For Laser Cooled Neutral Atoms

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Magnetic Trap For Laser Cooled Neutral Atoms

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Author : Vanderlei Salvador Bagnato
language : en
Publisher:
Release Date : 1987

Magnetic Trap For Laser Cooled Neutral Atoms written by Vanderlei Salvador Bagnato and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.

Laser Cooling And Trapping

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Author : Harold J. Metcalf
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Laser Cooling And Trapping written by Harold J. Metcalf and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

Intended for advanced undergraduates and beginning graduates with some basic knowledge of optics and quantum mechanics, this text begins with a review of the relevant results of quantum mechanics, before turning to the electromagnetic interactions involved in slowing and trapping atoms and ions, in both magnetic and optical traps. The concluding chapters discuss a broad range of applications, from atomic clocks and studies of collision processes, to diffraction and interference of atomic beams at optical lattices and Bose-Einstein condensation.

Magnetic Trapping Of Neutral Atoms

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Author : Vanderlei Bagnato
language : en
Publisher:
Release Date : 1987

Magnetic Trapping Of Neutral Atoms written by Vanderlei Bagnato and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.

The program is to slow, trap and cool neutral atoms. Laser light is used to slow and cool atoms and magnetic forces are used to trap them. Ultimately we hope to be able to trap atoms for days and cool them to temperatures on the order of .000001 K in addition to the interesting scientific and technical challenges involved in trapping and cooling atoms, we hope to open several new lines of investigation with these cooled atoms. Cold trapped atoms constitute a good system for studying collective phenomena such as Bose condensation, low energy - Na and Na - Na, and coherent optical effects (the deBrogile wavelength can exceed the optical wavelength). They also offer opportunities for performing ultra-high resolution spectroscopy and are extremely promising candidates for a new generation of frequency standards.

Physics With Cold Atoms

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Author : Pradip Narayan Ghosh
language : en
Publisher: Allied Publishers
Release Date : 2001

Physics With Cold Atoms written by Pradip Narayan Ghosh and has been published by Allied Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Atoms categories.

Laser Cooling Of Neutral Atoms

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Author : Harold Metcalf
language : en
Publisher:
Release Date : 1989

Laser Cooling Of Neutral Atoms written by Harold Metcalf and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.

A new cooling process was discovered that uses an applied magnetic field to mix differentially light shifted atomic ground state sublevels. It seems to be another form of the polarization scrambling molasses that was appropriate for the ultra-cold measurements on the three dimensional Na molasses at the NBS last year, except that this is a one-dimensional)or perhaps two-dimensional) version. Optical collimation experiments were performed in two dimensions to make a very intense beam of atoms. Measuring a beam profile in two dimensions would require two hot wires scanning in perpendicular directions, and any asymmetry in the line shape could produce ambiguity. It is therefore very desirable to have a neutral atom imaging device. Diode Laser Experiments; High Vacuum System for trap and Molasses; magnetic Trapping of Neutral Atoms; Trapping Metastable Helium; the earliest experiments on optical pumping of helium there has been interest in generating light to excite the first resonance transition from the metastable 2 3S1 state to the 2/3P(O,1,2) states (lifetime tau approx 95 nsec). For 25 years these experiments were done with light from resonance lamps, but the advent of LNA in 1985 provided the opportunity for laser excitation of this important transition. (JHD).

Optical Trapping And Manipulation Of Neutral Particles Using Lasers A Reprint Volume With Commentaries

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Author : Arthur Ashkin
language : en
Publisher: World Scientific
Release Date : 2006-12-29

Optical Trapping And Manipulation Of Neutral Particles Using Lasers A Reprint Volume With Commentaries written by Arthur Ashkin and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-12-29 with Science categories.

This important volume contains selected papers and extensive commentaries on laser trapping and manipulation of neutral particles using radiation pressure forces. Such techniques apply to a variety of small particles, such as atoms, molecules, macroscopic dielectric particles, living cells, and organelles within cells. These optical methods have had a revolutionary impact on the fields of atomic and molecular physics, biophysics, and many aspects of nanotechnology.In atomic physics, the trapping and cooling of atoms down to nanokelvins and even picokelvin temperatures are possible. These are the lowest temperatures in the universe. This made possible the first demonstration of Bose-Einstein condensation of atomic and molecular vapors. Some of the applications are high precision atomic clocks, gyroscopes, the measurement of gravity, cryptology, atomic computers, cavity quantum electrodynamics and coherent atom lasers.A major application in biophysics is the study of the mechanical properties of the many types of motor molecules, mechanoenzymes, and other macromolecules responsible for the motion of organelles within cells and the locomotion of entire cells. Unique in vitro and in vivo assays study the driving forces, stepping motion, kinetics, and efficiency of these motors as they move along the cell's cytoskeleton. Positional and temporal resolutions have been achieved, making possible the study of RNA and DNA polymerases, as they undergo their various copying, backtracking, and error correcting functions on a single base pair basis.Many applications in nanotechnology involve particle and cell sorting, particle rotation, microfabrication of simple machines, microfluidics, and other micrometer devices. The number of applications continues to grow at a rapid rate.The author is the discoverer of optical trapping and optical tweezers. With his colleagues, he first demonstrated optical levitation, the trapping of atoms, and tweezer trapping and manipulation of living cells and biological particles.This is the only review volume covering the many fields of optical trapping and manipulation. The intention is to provide a selective guide to the literature and to teach how optical traps really work.

Laser Cooled And Trapped Atoms

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Author :
language : en
Publisher:
Release Date : 1983

Laser Cooled And Trapped Atoms written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Atomic beams categories.

Development Of A Laser Cooling And Magneto Optical Trapping Experiment For Rubidium 87 Atoms

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Author : Charles Ian Rigby
language : en
Publisher:
Release Date : 2010

Development Of A Laser Cooling And Magneto Optical Trapping Experiment For Rubidium 87 Atoms written by Charles Ian Rigby and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Laser cooling categories.

A magneto optical trap (MOT) is capable of trapping a vapor cloud consisting of atoms cooled down to the micro Kelvin range. Three orthogonal pairs of counter-propagating laser beams of the correct circular polarisation form an optical molasses which facilitates the cooling of neutral atoms. Additionally a spatially non-uniform magnetic field produced by two current carrying coils in a Maxwell gradient configuration is used to trap the cooled atoms. In this report the effects of the trap parameters, including the laser beam intensity and frequency detuning, beam diameter and magnetic field gradient, on the number of trapped atoms are discussed. Secondly the development of an experimental setup for laser cooling and trapping of 87Rb atoms in vacuum with the aid of a MOT is presented. All trap components were implemented and characterised. The vacuum system and trapping chamber in which the cooling takes place were designed and constructed. A rubidium getter to act as a source of atoms was integrated into the vacuum system. The two external cavity diode lasers used for trapping and optical re-pumping were characterised. The optical setup required for the optical molasses was designed, constructed and characterised. Saturated absorption spectroscopy was performed to investigate the hyperfine structure of 87Rb and to frequency lock the lasers. We report on the current status of the project with regards to progress, results and future work.

Magnetic Simulations For Trapping And Cooling Neutral Atoms

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Author : Eyal Fleminger
language : en
Publisher:
Release Date : 2007

Magnetic Simulations For Trapping And Cooling Neutral Atoms written by Eyal Fleminger and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Atoms categories.

Laser Cooling And Trapping Of Neutral Atoms

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Author : C. S. Adams
language : en
Publisher:
Release Date : 1997

Laser Cooling And Trapping Of Neutral Atoms written by C. S. Adams and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Laser cooling categories.