Rotational relaxation in H2 gas observed with optical beating Brillouin spectroscopy
作者： Yasuo Minami , Takeshi Yogi , Keiji Sakai
DOI: 10.1063/1.3267486
关键词: Brillouin scattering 、 Relaxation (NMR) 、 Relaxation frequency 、 Brillouin Spectroscopy 、 Brillouin zone 、 Atomic physics 、 Frequency resolution 、 Chemistry 、 Optics 、 Hydrogen 、 Acoustic wave velocity
摘要: The optical beating Brillouin spectroscopy used in this study possesses quite high frequency resolution, up to 1 kHz, which enabled us observe the peak of hydrogen gas megahertz region. In study, we measured sound velocity 10 MHz region with and observed rotation-translation relaxation. obtained value relaxation is reasonable. This method would enable rotation–translation other gases a nondestructive, noncontact manner.
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