Doppler-free two-photon absorption spectroscopy of rovibronic transition of naphthalene calibrated with an optical frequency comb
Doppler-free two-photon absorption spectroscopy of rovibronic transition of naphthalene calibrated with an optical frequency comb
复制标题
用光学频率梳校准萘的振动电子跃迁的无多普勒双光子吸收光谱
DOI：
10.1016/j.jms.2015.09.010
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发表时间：
2015
影响因子：
1.4
通讯作者：
and M. Misono,
中科院分区：
文献类型：
--
作者：
A. Nishiyama;K. Nakashima;A. Matsuba;and M. Misono,
我们使用光学频率梳作为频率参考，进行了萘的无多普勒双光子吸收光谱。旋转分辨的旋振光谱进行了观察，并确定的绝对频率的旋振跃迁的不确定性为几十kHz。该系统的分辨率和精度比萘的自然宽度更精细。对1466条Q（Ka）Q（J）跃迁谱线进行了归属，并计算了分子常数.我们将系统的谱线位移归因于科里奥利相互作用，并讨论了谱线宽度的来源。
We performed Doppler-free two-photon absorption spectroscopy of naphthalene using an optical frequency comb as a frequency reference. Rotationally resolved rovibronic spectra were observed, and absolute frequencies of the rovibronic transitions were determined with an uncertainty of several tens of kHz. The resolution and precision of our system are finer than the natural width of naphthalene. We assigned 1466 lines of the Q (K a) Q (J) transition and calculated molecular constants. We attribute systematic spectral line shifts to the Coriolis interaction, and discuss the origin of the spectral linewidths.