کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1683101 | 1010491 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optogalvanic spectroscopy using 389Â nm coherent light source accurately tuned to resonance frequency of 23S->33P of 3He
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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![عکس صفحه اول مقاله: Optogalvanic spectroscopy using 389Â nm coherent light source accurately tuned to resonance frequency of 23S->33P of 3He Optogalvanic spectroscopy using 389Â nm coherent light source accurately tuned to resonance frequency of 23S->33P of 3He](/preview/png/1683101.png)
چکیده انگلیسی
An efficient 389Â nm coherent light source, made possible through the single-pass second-harmonic generation of a picosecond Ti:sapphire laser with a periodically poled lithium niobate waveguide, was developed for the metastability exchange optical pumping of hyperpolarized 3He gas, which is applicable to imaging with nuclear magnetic resonance. The second-harmonic light provided such a broad spectrum that some split sub-levels of its metastable state under an applied magnetic field could be pumped efficiently and simultaneously. Optogalvanic spectroscopy using the light source indicated that the spectral width of 3He was much less than 70Â GHz, which was similar to the spectral width of the light source.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 266, Issue 11, June 2008, Pages 2623-2626
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 266, Issue 11, June 2008, Pages 2623-2626
نویسندگان
Shingo Maeda, Kuniaki Kyutoku, Hiroshi Kumagai, Ataru Kobayashi,