2013年1月
Coherence decay measurement of v=2 vibrons in solid parahydrogen
JOURNAL OF CHEMICAL PHYSICS
- 巻
- 138
- 号
- 2
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1063/1.4773893
- 出版者・発行元
- AMER INST PHYSICS
The coherence decay of the v = 2 vibrational state (vibrons) of solid parahydrogen was measured via time-resolved coherent anti-Stokes Raman spectroscopy. We found that the decay curve has a non-exponential time profile in the time scale of 200 ns at a low temperature below 5 K and a low orthohydrogen impurity concentration (similar to 0.01%). This behavior, as also observed in the case of the v = 1 vibrons, represents a signature of band structure of the v = 2 state in the solid phase. The maximum coherence decay time of 50 ns in an exponential part was achieved, which shows excellence of the v = 2 state for coherent processes. We also found that finite temperatures, orthohydrogen impurities, and other structural inhomogeneity accelerate the decay, hiding the non-exponential feature of the vibron band. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4773893]
- リンク情報
- ID情報
-
- DOI : 10.1063/1.4773893
- ISSN : 0021-9606
- eISSN : 1089-7690
- Web of Science ID : WOS:000313642500049