Results 21 to 30 of about 14,415 (276)

Optical cycling, radiative deflection and laser cooling of barium monohydride (138Ba1H)

open access: yesNew Journal of Physics, 2020
We present the first experimental demonstration of radiation pressure force deflection and direct laser cooling for barium monohydride (BaH) molecules resulting from multiple photon scattering.
Rees L McNally   +5 more
doaj   +1 more source

Laser Cooling and Trapping

open access: yesPeking University-World Scientific Advanced Physics Series, 1999
Introduction and review of quantum mechanics: Review of Quantum Mechanics.- The Density Matrix.- Force on Two-Level Atoms.- Multi-Level Atoms.- General Properties Concerning Laser Cooling.
H. Metcalf, P. van der Straten
semanticscholar   +1 more source

Experimental implementation of laser cooling of trapped ions in strongly inhomogeneous magnetic fields

open access: yesPhysical Review Research, 2023
We demonstrate the Doppler laser cooling of ^{40}Ca^{+} ions confined in a segmented linear Paul trap in the presence of a strong quadrupolar magnetic field generated by two permanent ring magnets.
Christian Mangeng   +3 more
doaj   +1 more source

Laser-induced rotation and cooling of a trapped microgyroscope in vacuum [PDF]

open access: yes, 2013
This work was supported by the UK Engineering and Physical Sciences Research Council (EPSRC grant numbers: EP/J01771X/1 and EP/G061688/1)Quantum state preparation of mesoscopic objects is a powerful playground for the elucidation of many physical ...
Arita, Yoshihiko   +2 more
core   +1 more source

Laboratory Courses on Laser Spectroscopy and Atom Trapping

open access: yesAtoms, 2020
We present an overview of experiments covered in two semester-length laboratory courses dedicated to laser spectroscopy and atom trapping. These courses constitute a powerful approach for teaching experimental physics in a manner that is both ...
Hermina C. Beica   +14 more
doaj   +1 more source

Hypothermal opto-thermophoretic tweezers

open access: yesNature Communications, 2023
Optical tweezers have profound importance across fields ranging from manufacturing to biotechnology. However, the requirement of refractive index contrast and high laser power results in potential photon and thermal damage to the trapped objects, such as
Pavana Siddhartha Kollipara   +8 more
doaj   +1 more source

Magneto-optical trapping forces for atoms and molecules with complex level structures

open access: yesNew Journal of Physics, 2015
Laser cooling and magneto-optical trapping of molecules typically involves multiple transitions driven by several laser frequencies. We analyze how magneto-optical trapping forces depend on the angular momenta, F _l and F _u , and the g -factors, g _l ...
M R Tarbutt
doaj   +1 more source

Prospects for Precise Measurements with Echo Atom Interferometry

open access: yesAtoms, 2016
Echo atom interferometers have emerged as interesting alternatives to Raman interferometers for the realization of precise measurements of the gravitational acceleration g and the determination of the atomic fine structure through measurements of the ...
Brynle Barrett   +5 more
doaj   +1 more source

Sub-Doppler Cooling and Compressed Trapping of YO Molecules at μK Temperatures

open access: yesPhysical Review X, 2020
Complex molecular structure demands customized solutions to laser cooling by extending its general set of principles and practices. Compared with other laser-cooled molecules, yttrium monoxide (YO) exhibits a large electron-nucleus interaction, resulting
Shiqian Ding   +4 more
doaj   +1 more source

Optomechanical coupling between ultracold atoms and a membrane oscillator [PDF]

open access: yes, 2014
In this thesis, I report on the realization of a hybrid optomechanical system in which ultracold atoms are coupled to a micromechanical membrane. The atoms are trapped in the intensity maxima of an optical standing wave formed by retroreflection of a ...
Korppi, Maria
core   +1 more source

Home - About - Disclaimer - Privacy