WebMay 15, 2007 · U.S. Department of Energy Office of Scientific and Technical Information Search terms: Advanced search options Advanced Search Options Advanced Search queries use a traditional Term Search. WebNov 30, 2024 · We propose the application of laser cooling to a number of transition-metal atoms, allowing numerous bosonic and fermionic atomic gases to be cooled to ultralow …
Laser Cooling and Trapping - Physics
WebNov 30, 2024 · Energy levels of scandium group elements (a) Sc, (b) Y, and (c) La. The a 2 D J ground term and a F 9 / 2 4 metastable laser-cooling state are highlighted in all diagrams. For Sc, the laser-cooling transition at 549-nm wavelength connects to the z G 11 / 2 4 state. In Y, the analogous transition occurs at wavelength 547 nm; also indicated is ... WebLaser radiation has been used to cool matter ranging from dilute gases to micromechanical oscillators. In Doppler cooling of gases, the translational energy of atoms is lowered through interaction with a laser field1,2. Recently, cooling of a high-density gas through collisional redistribution of radiation has been demonstrated3. In laser ... col roulé pull and bear
Doppler cooling, explained by RP Photonics …
The first example of laser cooling, and also still the most common method (so much so that it is still often referred to simply as 'laser cooling') is Doppler cooling. Doppler cooling, which is usually accompanied by a magnetic trapping force to give a magneto-optical trap, is by far the most common method of laser coolin… WebLaser light can be emitted in a tight beam that does not grow in size at a distance from the laser. This means that the same degree of hazard can be present both close to and far from the laser ... WebSome gas lasers use neutral atoms as the laser-active species: Helium–neon lasers (He–Ne lasers), first demonstrated already in 1961, often emit red light at 632.8 nm, but can also be made for other wavelengths such as 543.5 nm (), 594.1 nm (yellow), 611.9 nm (orange), 3.39 μm, or 1.15 μm by introducing intracavity losses with appropriate spectral … dr thai bui