A stationary atom sees the laser neither red- nor blue-shifted and does not absorb the photon.
2
An atom moving away from the laser sees it red-shifted and does not absorb the photon.
3.1
An atom moving towards the laser sees it blue-shifted and absorbs the photon, slowing the atom.
3.2
The photon excites the atom, moving an electron to a higher quantum state.
3.3
The atom re-emits a photon. As its direction is random, there is no net change in momentum over many photons.
Doppler cooling is a mechanism that can be used to trap and slow the motion of atoms to cool a substance. The term is sometimes used synonymously with laser cooling, though laser cooling includes other techniques.
sometimes used synonymously with laser cooling, though laser cooling includes other techniques. Dopplercooling was simultaneously proposed by two groups...
below an atomic resonance, the atoms will be cooled. This common type of laser cooling relies on the Doppler effect where individual atoms will preferentially...
energy. It is a type of laser cooling of atoms used to reach temperatures below the Dopplercooling limit. This cooling method was first proposed by Claude...
Resolved sideband cooling is a laser cooling technique allowing cooling of tightly bound atoms and ions beyond the Dopplercooling limit, potentially to...
The Doppler effect (also Doppler shift) is the change in the frequency of a wave in relation to an observer who is moving relative to the source of the...
cooling (PG cooling) is a technique in laser cooling of atoms. It was proposed to explain the experimental observation of cooling below the doppler limit...
Raman cooling is a sub-recoil cooling technique that allows the cooling of atoms using optical methods below the limitations of Dopplercooling, Doppler cooling...
a technique known as Dopplercooling. Similar ideas were also proposed to cool samples of trapped ions. Applying Dopplercooling in three dimensions will...
temperature is below the Dopplercooling limit for atoms and molecules, so sub-Dopplercooling techniques such as Sisyphus cooling are necessary to reach...
lowest possible temperature attainable considering the cooling of two-level atoms by Dopplercooling and the heating of atoms due to momentum diffusion from...
In atomic physics, Doppler broadening is broadening of spectral lines due to the Doppler effect caused by a distribution of velocities of atoms or molecules...
heat level. Dopplercooling is the most common method of laser cooling. Sympathetic cooling is a process in which particles of one type cool particles of...
Gray molasses is a method of sub-Doppler laser cooling of atoms. It employs principles from Sisyphus cooling in conjunction with a so-called "dark" state...
optical force that slows them down. Dopplercooling is effective for cooling atoms along one direction but fails to cool atoms in all three dimensions. Optical...
trap or optical tweezers by laser beam. This, along with Dopplercooling and Sisyphus cooling, was the crucial technology needed to achieve the celebrated...
1 °C). One method that used to cool molecules to temperatures near absolute zero is laser cooling. In the Dopplercooling process, lasers are used to remove...
trap or optical tweezers by laser beam. This, along with Dopplercooling and Sisyphus cooling, was the crucial technology needed to achieve the celebrated...
saturated absorption spectroscopy. To overcome the problem of Doppler broadening without cooling down the sample to millikelvin temperatures, a classical pump–probe...
cooled significantly before loading them into the optical lattice. Cooling techniques used to this end include magneto-optical traps, Dopplercooling...
Precise measurement of the electron g-factor Penning trap Laser coolingDopplercooling Nuclear quadrupole resonance Awards National Medal of Science (1995)...
fields, create characteristic distortions in the spectral lines due to the Doppler effect. These distortions will move across spectral line profiles due to...
Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its...
an optical trap or optical tweezers by laser beam. This, along with Dopplercooling was the crucial technology needed to achieve the celebrated Bose–Einstein...
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