Results 11 to 20 of about 7,063 (263)

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

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

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

Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser [PDF]

open access: yes, 2006
We report the operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser. The laser delivers 1 W at 855 nm and is pumped with a cost-effective fiber-coupled laser diode emitting at 806 nm.
Ferguson, Allister I.   +5 more
core   +1 more source

Measurement of laser absorptivity for operating parameters characteristic of laser drilling regime [PDF]

open access: yes, 2008
Publisher version : http://iopscience.iop.org/0022-3727/41/15/155502/Laser drilling in the percussion regime is commonly used in the aircraft industry to drill sub-millimetre holes in metallic targets.
SCHNEIDER, Matthieu   +3 more
core   +1 more source

Search for a permanent EDM using laser cooled radioactive atom

open access: yesEPJ Web of Conferences, 2014
The search for the electric-dipole moment (EDM) of laser-cooled francium (Fr) atoms could lead to a measurement for the electron EDM. It is predicted that the electron EDM would be enhanced by approximately three orders of magnitude in heavy atoms such ...
Kawamura Hirokazu   +24 more
doaj   +1 more source

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