Results 91 to 100 of about 307,922 (287)

Collisional Redistribution Laser Cooling of a High Pressure Atomic Gas

, 2011
We describe measurements demonstrating laser cooling of an atomic gas by means of collisional redistribution of radiation. The experiment uses rubidium atoms in the presence of several hundred bar of argon buffer gas pressure.
Haßelmann, Simon, Saß, Anne, Vogl, Ulrich, Weitz, Martin   +3 more
core   +1 more source

Laser cooling of TeV muons [PDF]

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2001
5 pages, 1 figure, contributed to the NuFAct'00 International ...
openaire   +2 more sources

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Longitudinal and transverse cooling of relativistic electron beams in intense laser pulses

New Journal of Physics, 2015
With the emergence in the next few years of a new breed of high power laser facilities, it is becoming increasingly important to understand how interacting with intense laser pulses affects the bulk properties of a relativistic electron beam.
Samuel R Yoffe, Yevgen Kravets, Adam Noble, Dino A Jaroszynski   +3 more
doaj   +1 more source

Comparing cavity and ordinary laser cooling within the Lamb-Dicke regime

, 2010
Cavity-mediated cooling has the potential to become one of the most efficient techniques to cool molecular species down to very low temperatures. In this paper we analyse cavity cooling with single-laser driving for relatively large cavity decay rates ...
Beige, Almut, Blake, Tony, Kurcz, Andreas   +2 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Laser cooling with electromagnetically induced transparency: Application to trapped samples of ions or neutral atoms

, 2001
A novel method of ground state laser cooling of trapped atoms utilizes the absorption profile of a three (or multi-) level system which is tailored by a quantum interference.
Blatt, R., Eschner, J., Leibfried, D., Morigi, G., Mundt, A., Roos, C. F., Schmidt-Kaler, F.   +6 more
core   +1 more source

Laser Cooling Positronium with Broadband Laser Pulses

Journal of Physics: Conference Series
Abstract The first successful demonstration of broadband laser cooling of positronium (Ps) atoms, obtained within the AEgIS experiment at CERN, is presented here. By employing a custom-designed pulsed alexandrite laser system at 243 nm featuring long-duration pulses of 70 ns and an energy able to saturate the 13S–23P transition over the ...
Caravita R., Alfaro Campos S., Auzins M., Berghold M., Bergmann B., Burian P., Brusa R. S., Camper A., Castelli F., Cerchiari G., Ciurylo R., Chehaimi A., Consolati G., Doser M., Eliaszuk K., Ferguson R., Germann M., Giszczak A., Gloggler L. T., Graczykowski L., Grosbart M., Guatieri F., Gusakova N., Gustafsson F., Haider S., Huck S., Hugenschmidt C., Janik M. A., Januszek T., Kasprowicz G., Kempny K., Khatri G., Klosowski L., Kornakov G., Krumins V., Lappo L., Linek A., Mariazzi S., Moskal P., Munster M., Pandey P., Pecak D., Penasa L., Petracek V., Piwinski M., Pospisil S., Povolo L., Prelz F., Rangwala S. A., Rauschendorfer T., Rawat B. S., Rienacker B., Rodin V., Rohne O. M., Sandaker H., Sharma S., Smolyanskiy P., Sowinski T., Tefelski D., Vafeiadis T., Volponi M., Welsch C. P., Zawada M., Zielinski J., Zurlo N.   +64 more
openaire   +3 more sources

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

Advanced Engineering Materials, EarlyView.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko, Evelyn Wang, Michael A. Hickner   +2 more
wiley   +1 more source

Ground state cooling in a bad cavity

, 2006
We study the mechanical effects of light on an atom trapped in a harmonic potential when an atomic dipole transition is driven by a laser and it is strongly coupled to a mode of an optical resonator.
Buck JR, Bushev P, Cirac JI, Cohen-Tannoudji C, Enk SJ van, Eschner J, Giovanna Morigi, Guthöhrlein GR, Keller M, Leibfried D, Mundt AB, Nussmann S, Nußmann S, Sauer JA, See for instance P. Domokos, Stefano Zippilli, Stenholm S, Vuletic V, Wolfgang P. Schleich, Zippilli S, Zippilli S   +20 more
core   +1 more source