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pro vyhledávání: '"Duncan Tate"'
We have experimentally demonstrated both heating and cooling of electrons in an ultracold neutral plasma (UNP) by embedding Rydberg atoms into the plasma soon after its creation. We have determined the relationship between the initial electron temper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::feeb6692392da364d2002b255c8eb5b3
http://arxiv.org/abs/1808.05262
http://arxiv.org/abs/1808.05262
Autor:
T. F. Gallagher, Duncan Tate
We report efficient microwave-optical two photon excitation of Rb Rydberg atoms in a magneto optical trap. This approach allows the excitation of normally inaccessible states and provides a path toward excitation of high angular momentum states. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfdd3552c0f385547583eb27490d9194
We report a systematic experimental and numerical study of the expansion of ultra-cold Rydberg plasmas. Specifically, we have measured the asymptotic expansion velocities, $v_0$, of ultra-cold neutral plasmas (UNPs) which evolve from cold, dense samp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c19cc4e3e37835389ae6f48acfd846be
http://arxiv.org/abs/1711.09797
http://arxiv.org/abs/1711.09797
Autor:
Duncan Tate, J. P. Walton
Publikováno v:
Physical Review A. 59:1170-1177
We have measured hyperfine-structure splittings and isotope shifts in the $4s{}^{4}{P}_{J}\ensuremath{\rightarrow}4p{}^{4}{D}_{{J}^{\ensuremath{'}}}$ multiplet in atomic chlorine using Doppler-free saturated absorption spectroscopy with an external c
Autor:
Thomas Gallagher, Duncan Tate
Publikováno v:
Physical Review A. 58:3058-3067
We have investigated multiphoton ionization of Ba 6snl Rydberg states by intense 200-fs laser pulses. Specifically, we have excited Ba atoms to the 6sns and 6snd 15{lt}n{lt}{infinity} states using two nanosecond lasers. The atoms were then irradiated
Autor:
D. N. Aturaliye, Duncan Tate
Publikováno v:
Physical Review A. 56:1844-1854
Publikováno v:
Physical Review A. 48:1359-1363
The comparison of kinetic-energy distributions and ionic fragment yields produced from CO[sub 2] and N[sub 2]O in fast-ion collisions and multiphoton ionization reveals three comparative and distinguishing features of the interactions. They are (i) s
Autor:
Oleg B. Shiryaev, B. E. Bouma, X. M. Shi, Keith Boyer, T. S. Luk, Alexey Borisov, Armon McPherson, Charles K. Rhodes, Duncan Tate, A. V. Borovskiy
Publikováno v:
Applied optics. 31(18)
Recent experimental and theoretical results indicate that a new technique for the controlled concentration of power in materials may be feasible. The power levels that are potentially achievable are sufficient for the generation of amplification of x