Measurement of small photodestruction rates of cold, charged biomolecules in an ion trap
Measurement of small photodestruction rates of cold, charged biomolecules in an ion trap
复制标题
测量离子阱中冷带电生物分子的小光破坏率
DOI:
10.1088/0953-4075/42/3/035101
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
S. Schiller
中科院分区:
文献类型:
--
作者:
D. Offenberg;Ch. Wellers;C. B. Zhang;B. Roth;S. Schiller
In this work, we demonstrate quantitative measurements of photodestruction rates of translationally cold, charged biomolecules. The long-term stable storage of the molecular ions in an ion trap under ultra-high vacuum conditions allows measurement of small rates and verification that rates are linear in photodestruction laser intensity. Measurements were performed on singly protonated molecules of the organic compound glycyrrhetinic acid (C 30 H 46 O 4), dissociated by a continuous-wave UV laser (266 nm) using different intensities. The molecules were sympathetically cooled by simultaneously trapped laser-cooled barium ions to translational temperatures of below 150 mK. Destruction rates of less than 0.05 s− 1 and a cross section of (1.1±0.1)× 10− 17 cm 2 have been determined. An extension to tunable UV laser sources would permit high-resolution dissociation spectroscopic studies on a wide variety of cold complex molecules.
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影响因子:
2.9
作者:
D. Offenberg;C. Zhang;Ch. Wellers;B. Roth;S. Schiller
通讯作者:
S. Schiller
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
P. Dagaut;M. Kurylo
通讯作者:
M. Kurylo
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
S. Nielsen
通讯作者:
S. Nielsen
影响因子:
3.2
作者:
L. L. Griffin;D. McAdoo
通讯作者:
D. McAdoo
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
B. Roth;A. Ostendorf;H. Wenz;S. Schiller
通讯作者:
S. Schiller