Zobrazeno 1 - 7 of 7 pro vyhledávání: '"R. J. W. Stas"'
1
An intense, slow and cold beam of metastable Ne(3s)P-3(2) atoms
Autor: P. G. M. Sebel, R. J. W. Stas, E.J.D. Vredenbregt, H. C. W. Beijerinck, J.G.C. Tempelaars
Publikováno v: Tempelaars, J G C, Stas, R J W, Sebel, P G M, Beijerinck, H C W & Vredenbregt, E J D 2002, ' An intense, slow and cold beam of metastable Ne(3s)P-3(2) atoms ', European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics, vol. 18, no. 1, pp. 113-121 . https://doi.org/10.1140/e10053-002-0013-8
European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics, 18(1), 113-121. Springer New York
We employ laser cooling to intensify and cool an atomic beam of metastable Ne(3s) atoms. Using several collimators, a slower and a compressor we achieve a ^{20}Ne^* flux of 6 10^{10} atoms/s in an 0.7 mm diameter beam traveling at 100 m/s, and having
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d814e93b82dc37099c6b56ed5190fae3
https://doi.org/10.1140/e10053-002-0013-8
Zobrazit plný text záznamu
2
Prospects for Bose-Einstein condensation of metastable neon atoms
Autor: R. J. W. Stas, J.G.C. Tempelaars, E.J.D. Vredenbregt, M.R. Doery, H. C. W. Beijerinck
Publikováno v: Physical Review A : Atomic, Molecular and Optical Physics, 61(2):023607, 023607-1/15. American Physical Society
Physical Review A. Atomic, Molecular and Optical Physics, 61(2). American Physical Society
Beijerinck, H C W, Vredenbregt, E J D, Stas, R J W, Doery, M R & Tempelaars, J G C 2000, ' Prospects for Bose-Einstein condensation of metastable neon atoms ', Physical Review A. Atomic, Molecular and Optical Physics, vol. 61, no. 2 . https://doi.org/10.1103/PhysRevA.61.023607
The calculated upper limit Kipol state is used as input to investigate the prospects for achieving Bose-Einstein condensation (BEC). The heating rate of the trap population by secondary collisions of the hot products of the process of ionization—i.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::954bb5b07a1acdd41e611f6b5cf58725
https://research.tue.nl/en/publications/60ae9a4d-417a-45a2-b979-f69d40241c1c
Zobrazit plný text záznamu
4
Heteronuclear ionizing collisions between laser-cooled metastable helium atoms
Autor: J. M. McNamara, Wim Vassen, R. J. W. Stas, Wim Hogervorst
Publikováno v: McNamara, J M, Stas, R J W, Hogervorst, W & Vassen, W 2007, ' Heteronuclear ionizing collisions between laser-cooled metastable helium atoms ', Physical Review A. Atomic, Molecular and Optical Physics, vol. 75, no. 6 . https://doi.org/10.1103/PhysRevA.75.062715
Physical Review A. Atomic, Molecular and Optical Physics, 75(6). American Physical Society
We have investigated cold ionizing heteronuclear collisions in dilute mixtures of metastable (2 3S1) 3He and 4He atoms, extending our previous work on the analogous homonuclear collisions [R. J. W. Stas et al., PRA 73, 032713 (2006)]. A simple theore
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8522e670b17d83fb5b73edaeefab8d4f
https://research.vu.nl/en/publications/b2dfcbce-8eb4-433f-b59a-b5da551753d3
Zobrazit plný text záznamu
5
Homonuclear ionizing collisions of laser-cooled metastable helium atoms
Autor: Wim Vassen, R. J. W. Stas, Wim Hogervorst, J. M. McNamara
Publikováno v: Physical Review A. Atomic, Molecular and Optical Physics, 2006(73):032713. American Physical Society
Stas, R J W, McNamara, J M, Hogervorst, W & Vassen, W 2006, ' Homonuclear ionizing collisions of laser-cooled metastable helium atoms ', Physical Review A. Atomic, Molecular and Optical Physics, vol. 2006, no. 73, 032713 . https://doi.org/10.1103/PhysRevA.73.032713
We present a theoretical and experimental investigation of homonuclear ionizing collisions of laser-cooled metastable helium atoms, considering both the fermionic He-3 and bosonic He-4 isotope. The theoretical description combines quantum threshold b
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d7b68e2caef5d62a8fda75a1ff1a3de
http://arxiv.org/abs/cond-mat/0601414
Zobrazit plný text záznamu
6
Simultaneous magneto-optical trapping of a boson-fermion mixture of metastable helium atoms
Autor: Wim Vassen, R. J. W. Stas, Wim Hogervorst, J. M. McNamara
Publikováno v: Physical Review Letters, 93(5). American Physical Society
Stas, R J W, McNamara, J M, Hogervorst, W & Vassen, W 2004, ' Simultaneous magneto-optical trapping of a boson-fermion mixture of metastable helium atoms ', Physical Review Letters, vol. 93, no. 5 . https://doi.org/10.1103/PhysRevLett.93.053001
We simultaneously confine fermionic metastable $^{3}\mathrm{H}\mathrm{e}$ atoms and bosonic metastable $^{4}\mathrm{H}\mathrm{e}$ atoms in a magneto-optical trap. The trapped clouds, containing up to $1.5\ifmmode\times\else\texttimes\fi{}{10}^{8}$ at
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a420994bd480fa871a54abea722dd72
https://doi.org/10.1103/physrevlett.93.053001
Zobrazit plný text záznamu
7
Magneto-optical trap for metastable helium at 389 nm
Autor: Wim Hogervorst, Wim Vassen, R. J. W. Stas, Jeroen C. J. Koelemeij
Publikováno v: Koelemeij, J C J, Stas, R J W, Hogervorst, W & Vassen, W 2003, ' Magneto-optical trap for metastable helium at 389 nm ', Physical Review A. Atomic, Molecular and Optical Physics, vol. 67, no. 5, 053406 . https://doi.org/10.1103/PhysRevA.67.053406
Physical Review A. Atomic, Molecular and Optical Physics, 67(5):053406. American Physical Society
We have constructed a magneto-optical trap (MOT) for metastable triplet helium atoms utilizing the 2 3S1 -> 3 3P2 line at 389 nm as the trapping and cooling transition. The far-red-detuned MOT (detuning Delta = -41 MHz) typically contains few times 1
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0a5779d7b21dd0bfb9ea4163fded005
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje