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  • Optical Pumping of Rubidium Vapor

    Optical pumping is a process of raising individual atoms from lower to higher states of internal energy— this process is used to alter the equilibrium populations of atoms in different energy levels to prepare them for spectroscopy. The word "optical" refers to the light en-ergy that powers this atomic pump…

  • Optical Pumping - MIT

    A. Kastler discovered optical pumping in the 1950's and received the Nobel Prize for his work in 1966. In this experiment you will explore the phenomenon of op-tical pumping and its application to fundamental mea-surements in atomic and nuclear physics with equipment originally built for the Junior Lab shortly after the pub-

  • [PDF] OPTICAL PUMPING | Semantic Scholar

    Preface In recent years the words "optical pumping" have been used more and more often, generally in connection with the operation of lasers and masers. However, the concept of optical pumping and the techniques involved have a more general applicability and have been responsible for the success of a large number of fundamental and aesthetically beautiful experiments.

  • Optical Pumping | TeachSpin

    Optical Pumping is a widely used and powerful technique for exploring atomic energy states, atomic transitions, and atomic collisions using electromagnetism in the form of light, radio frequency, and uniform constant magnetic fields. TeachSpin's Optical Pumping apparatus explores the atomic physics of both isotopes of natural rubidium.

  • Optical pumping of Rubidium - High Energy Physics

    Optical Pumping of Rubidium Advanced Laboratory, Physics 407 University of Wisconsin Madison, WI 53706 Abstract A Rubidium high-frequency lamp is used as the pumping light source to excite Rubidium atoms in a sample cell. The pumping source light is filtered to transmit the D1 Rb line and polarizers are used to produce circular polarization.

  • OPTICAL PUMPING OF RUBIDIUM - Department of Physics

    Optical pumping is the basis of all lasers; it is an important tool for studying collision and : y exchange relaxation processes, and also finds applicability in both solid state and liquid state physics. A good article to start your reading might be Thomas Carver's review article in

  • Optical pumping - WikiMili, The Free Encyclopedia

    Optical pumping is a process in which light is used to raise (or pump) electrons from a lower energy level in an atom or molecule to a higher one. It is commonly used in laser construction, to pump the active laser medium so as to achieve population inversion. The technique was developed by …

  • SPIN EXCHANGE OPTICAL PUMPING OF

    optically pumping an alkali vapour which polarizes a noble gas nucleus via spin exchange optical pumping. One hyperpolarized noble gas application of particular importance is the K-3He co-magnetometer. Here, the alkali atoms optically pump a diamagnetic noble gas. The magnetic holding field for the alkali and noble gas is reduced until both

  • Optical Pumping of Rubidium - University of Minnesota

    When the optical pumping process is disrupted, the relative intensity drops. Figure 2 shows three such drops in relative intensity at A, B, and C. In this particular case A occurs at the point of zero magnetic field where the Zeeman levels become degenerate. Points B and C arise due to Hertzian resonances where a …

  • Optical Pumping - Definition and Applications

    Optical pumping is a process in which light energy is used to excite electrons from a lower to higher energy level. It was first developed by Alfred Kastler in the early 1950s and is primarily ...

  • MONOCROM - Optical Pumping

    Laser solutions for Optical Pumping. Diode lasers are one of the most popular sources for optical pumping nowadays, because of their unsurpassed wall-plug efficiency and wavelength versatility. We offer a wide variety of pumping solutions involving single emitters, emitter arrays (laser bars and mini-bars) and laser bar arrays (vertical and ...

  • Optical Pumping: Three- and Four-Level Systems

    Optical Pumping: Three- and Four-Level Systems. In a simple two-level system, it is not possible to obtain a population inversion with optical pumping because the system can absorb pump light (i.e., gain energy) only as long as population inversion, and thus light amplification, is not achieved. Essentially, the problem is stimulated emission ...

  • optical-pumping · GitHub Topics · GitHub

    Add a description, image, and links to the optical-pumping topic page so that developers can more easily learn about it. Curate this topic Add this topic to your repo To associate your repository with the optical-pumping topic, visit your repo's landing page and select "manage topics ...

  • Optical Pumping - NASA/ADS

    Optical pumping of ground-state and metastable atoms and ions is reviewed. We present a critical survey of the literature on pumping mechanisms, light propagation, relaxation mechanisms, spin exchange, and experimental details on the various atomic …

  • OPTICAL PUMPING OF RUBIDIUM VAPOR Introduction A …

    Optical Pumping 5 where Ehf = A(I +1=2) is the zero-magnetic field hyperfine splitting and we have ignored a small effect due to nuclear magnetic moment, see Ref. 2. The hyperfine energy splitting at zero magnetic field is Ehf = 3036 MHz for 85Rb and Ehf = 6835 MHz for 87Rb. Optical pumping The transition rules for the 5s Rb electron are similar to those for the simplified atom discussed ...

  • Optical Pumping - University of Michigan

    Physics441/2 Optical Pumping 3 K =5/2 and 87Rb with K =3/2.The j =1/2 rubidium ground states for the two isotopes are split by the hyperfine interaction into doublets with F = K±1/2.The hyperfine interaction is the magnetic interaction of the nu-

  • Cesium, Optical Pumping, and Parity Non-Conservation

    2 Optical Pumping 2.1 Motivation While the ultimate goal of our experiment is to measure cesium's anapole moment, the work done this summer involved a preliminary study that will lay the groundwork for the nal experiment. Speci cally, we use the technique of optical pumping to manipu-

  • A-4 Optical Pumping - Harvard University

    the case where the intensity of the optical pumping light is weak, the characteristic time for the optical pumping process is the characteristic time between optical absorptions, a time that can be much longer than the 100 ns lifetime of the excited state. It is useful to conduct experiments with different optical pumping …

  • Spin Exchange & Optical Pumping

    Optical Pumping. In this experiment, we optically pump 5S (1/2)Rb with 795 nm, circularly polarized light to a polarized state. Under radiative decays, spin - (1/2) Rb is excited to this metastable 5P (1/2) state by the incoming photons. As governed by the polarization ratio, one-third of which return to their original state, the rest are sent ...

  • Magnetic resonance line shapes in optical pumping and ...

    Cs and Rb atomic vapors have been optically pumped in their ground states. The optical/rf-field configuration used allowed for the optical detection of magnetic resonance spectra with subkilohertz resolution by a pump–probe beam technique, in which the free-precessional motion of spins is recorded in the time domain. A six-level system serves as a model to describe the dependence of the ...

  • Optical Pumping of Rubidium - home.sandiego.edu

    Optical Pumping of Rubidium Adam Egbert,1, a) Will Wiegand,1 and Hannah Sheppard2 1)University of San Diego 2)University of San Diego (Dated: 26 September 2015) In this experiment, we explored the how optical pumping can be used to access the quantum numbers associated with Zeeman splitting inside of Rubidium-85 and Rubidium-87 atoms. Optical ...

  • Optical Pumping - University of British Columbia

    Optical Pumping Eric D. Black September 27, 2004 Sometimes you want to magnetize a gas, to align all of the little mag-netic moments of the gas atoms in the same direction. You might plan to have somebody inhale the polarized gas, then look at the insides of their lungs using magnetic-resonance imaging, or you might want to investigate

  • Optical Pumping of Rubidium - Department of Physics

    Optical pumping of Rubidium Dr. Johannes Recht and Dr. Werner Klein, LH-Contact 1, (1991) pp. 8-11 Optical pumping is a process used in high frequency spectroscopy which was developed by A. Kastler. It allows the spectroscopy of atomic energy states in an energy region which is not accessible by means of direct, optical observation.

  • Valley polarization in MoS 2 monolayers by optical pumping

    optical pumping Hualing Zeng1†, Junfeng Dai2,1†,WangYao1,3,DiXiao4 and Xiaodong Cui1* Most electronic devices exploit the electric charge of electrons, but it is also possible to build devices that rely on other prop-erties of electrons. Spintronic devices, for example, make use of the spin of electrons1,2. Valleytronics is a more recent devel-

  • PHY 451| Optical Pumping - Michigan State University

    Optical pumping has been widely used to exploring atomic energy states, atomic transitions, and atomic collisions. Several Nobel Prizes have been awarded for work in this area (eg. Alfred Kastler 1966). When a sample of gaseous atoms is placed in a static magnetic field, the electronic states undergo Zeeman energy level splittings in addition ...

  • Optical Pumping - an overview | ScienceDirect Topics

    Optical pumping, the inversion technique used in the original ruby laser, is an extension of the "three-level" maser scheme proposed by Bloembergen (Bloembergen, 1956) for microwave solid-state masers.In Figure 2.6 we show a system of three energy levels, whose occupation, as shown by the length of the bars, obeys the Boltzmann distribution. We now apply a "pump" or intense optical ...

  • Synchronous Spin-Exchange Optical Pumping

    exchange optical pumping, in which both the alkali (here, Rb)andnoblegasspins(Xe) arepolarizedtransversetothe bias magnetic field, see Fig. 1. The bias magnetic field is applied as a sequence of short Rb 2π pulses, allowing the Rb atoms to be polarized perpendicular to the bias field

  • Optical pumping, explained by RP Photonics Encyclopedia ...

    Techniques of optical pumping are also used outside the area of laser physics, often in fundamental research.For example, various methods of laser cooling essentially depend on optical pumping of atoms or ions, for example suspended in an optical trap. In many cases, certain selection rules play a vital role, which reflect principles like the conservation of angular momentum: the absorption of ...

  • Optical Pumping - an overview | ScienceDirect Topics

    Optical pumping was first developed, in terms of theory, in 1950 by A. Kastler, and actually realized for experimentation in 1960 by T.H. Maiman. Initially, a pulse discharge lamp was used to obtain an intense flash of light in a broad spectrum (white and UV light). The process is repetitive with a frequency of a few Hz to a few tens of Hz.

  • Rev. Mod. Phys. 44, 169 (1972) - Optical Pumping

    Optical pumping of ground-state and metastable atoms and ions is reviewed. We present a critical survey of the literature on pumping mechanisms, light propagation, relaxation mechanisms, spin exchange, and experimental details on the various atomic …