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Far off resonant trap

WebOct 5, 2004 · We study in detail the mechanisms causing dephasing of hyperfine coherences of cesium atoms confined by a far off-resonant standing wave optical dipole trap [S. Kuhr et al., Phys. Rev. Lett. 91, 213002 (2003)]. Using Ramsey spectroscopy and spin echo techniques, we measure the reversible and irreversible dephasing times of the … WebJan 12, 2001 · We describe an experiment in which 3 × 10 7 Cs atoms are loaded into a 400 μ m crossed beam far-off-resonant trap (FORT) that is only 2 μ K deep. A high-density …

Single atom movement with dynamic holographic optical tweezers

WebNov 24, 2014 · A far-off-resonance optical trap for a Ba+ ion Nat Commun. 2014 Nov 24;5:5587. doi: 10.1038/ncomms6587. Authors Thomas Huber 1 ... Here we show optical … WebOct 3, 2008 · We have successfully observed high-resolution spectra of spin-forbidden electric quadrupole transition (1 S 0→3 D 2) in ytterbium (174Yb) atoms. The differential light shifts between the 1 S 0 and the 3 D 2 states in a far-off resonant trap at 532 nm are also measured. For the spectroscopy, we developed simple, narrow-linewidth, and long … mtn self service password https://casadepalomas.com

(PDF) Far-off-resonance optical trapping of atoms

WebAug 14, 2014 · A far-off-resonance optical trap for a Ba. ion. Optical trapping and ions combine unique advantages of independently striving fields of research. Light fields can form versatile potential landscapes, such as optical lattices, for neutral and charged atoms, avoiding detrimental implications of established radiofrequency (rf) traps while ... WebOptical far-off-resonance traps have been dem-onstrated for confining arbitrary atomic ground states in nearly identical potentials @5,6# and for optical lattices @7#. Multiple spin condensates have been stored in a shallow far-off-resonance trap to study interactions in the quantum de-generate regime @8#. These traps also offer an attractive pos- WebFar-off-resonant light traps (FORT) were used for knowing the loading and compressing Cs atoms. 3×10 7 Cs atoms were loaded into a 400 μm crossed beam far-off-resonant trap (FORT). Atoms in the FORT were compressed to a spatial density of 2×10 13 atoms/cm 3, and spontaneous emission in the FORT was negligible. how to make sand in minecraft

Cooling and trapping of ultra-cold strontium isotopic mixtures

Category:Near-deterministic preparation of a single atom in an optical …

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Far off resonant trap

Optimal Design of Dipole Potentials for Efficient Loading of Sr …

WebOptical trapping of Baþ in a far-off-resonance dipole trap. The protocol for optical trapping is illustrated in Fig. 1. We still exploit an rf trap39,40 (depicted in Fig. 1a) to load41, cool and WebFeb 1, 2003 · The U.S. Department of Energy's Office of Scientific and Technical Information

Far off resonant trap

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WebJun 1, 1993 · A typical trap contains 1300 atoms at a temperature of 0.4 mK and a peak density of 8× 1011 cm−3. We measure spontaneous photon scatter rates of the trapped … Webdipole trap aims to decrease the photon scattering, damaging to the coherence, and differential ac Stark shift introduced by the trapping laser. We use a far off-resonance trap (FORT) to reduce the photon scattering rate and choose a blue-detuned trap where the atoms are confined on the minima of the light field, the so-called dark region of ...

Webdetailed discussion of trap loss and trap state dynamics to future work. In a far-off resonance red detuned trap, the effective po-tential can be written as V~x!52 1 4 … WebRb IN A FAR OFF RESONTANT TRAP The experiments described in this thesis were focused on the physics of simultaneous trapping of 85 Rb and 87 Rb into a Far Off Resonant Trap (FORT), with a view towards the implementation of a non evaporative cooling scheme. Atoms were first

WebJul 4, 2024 · By cooling the atomic system considerably below MOT temperatures to ≈ 100 nK in an optical far-off resonance trap, we image local losses imprinted into the measurable atomic density profile. WebJul 1, 1993 · In far-off resonant traps for cold atoms formed by focused laser beams, recoil limited heating rates below the millikelvin per second …

WebFIG. 1: Experimental setup. A single atom located by a far-off-resonant trap (FORT) in a confocal arrangement of two aspheric lenses (AL) is made part of a stabilized Mach-Zehnder interferome-ter. Refer to the text for explanation of the different components. One arm contains a single 87Rb atom, trappedat the focus of a

WebJul 16, 2009 · For our optical molasses conditions we calculate that our cooling efficiencies require induced ground-state coherences. We present data and estimates which are consistent with heteronuclear long-ranged induced dipole-dipole collisions disrupting these ground state coherences, leading to a loss of optical trap loading efficiency. mtn science centre cape townWebFar off-resonance optical traps provide conservative potentials ... trap is occupied by a single atom that can be individually addressed3–6. At present, significant effort is being expended mtns coversWebAug 24, 2006 · Download PDF Abstract: We present the simultaneous cooling and trapping of an isotopic mixture in a magneto-optical trap and we describe the transfer of the mixture into a conservative, far-off resonant dipole trap. The mixture is prepared with a new technique that applies to intermediate and heavy alkaline earth like atoms. In this work, … how to make sandstoneWebThe second project that I worked on was constructing an optical trap. The oscillating electric field of a laser in an optic trap induces an oscillating atomic electric dipole moment. A potential is produced that corresponds to the intensity of the laser beam. If the laser frequency is tuned below the atomic resonance, the atoms are attracted mtn second legWebThe meaning of FAR-OFF is remote in time or space. How to use far-off in a sentence. remote in time or space… See the full definition Hello, Username. Log In Sign Up … mtn service center working hoursWebIn order to achieve atom trap lifetimes greater than 10 s, far-off resonant trap (FORT) depths on the order of milli-Kelvin are required. Unfortunately, FORTs operating in this regime also induce excited state AC stark shifts that compromise laser cooling and coherent control of the optical transitions. A major goal of this research is to ... how to make sand into ballsWebNov 24, 2014 · Optical trapping of Ba + in a far-off-resonance dipole trap. The protocol for optical trapping is illustrated in Fig. 1.We still exploit an … how to make sand into glass