Retrieval of the polarization ellipse of a THz-wave from precision measurements of lightshifts with cold trapped HD

被引：0
|
作者：
Constantin, F. L. [1 ]
机构：
[1] CNRS UMR 8523, Lab PhLAM, F-59655 Villeneuve Dascq, France
来源：
SPIE FUTURE SENSING TECHNOLOGIES (2020) | 2020年 / 11525卷
关键词：
electrometer; THz sensing; two-photon spectroscopy; trapped molecular ions; dynamic Stark shift; Zeeman effect; calibration; fundamental constants; SPECTROSCOPY; ELECTROMETRY; IONS;
D O I：
10.1117/12.2581874
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
THz-waves can be characterized with SI-traceability from the comparison between precision measurements with cold trapped HD+ ions and accurate predictions of the molecular ion theory. A THz-wave off-resonantly coupled to the rotational transition at 1.3 THz can be detected via the measurement of the lightshift induced on a Zeeman component of the two-photon rovibrational transition at 55.9 THz. A set of six lightshift measurements for two orientations of the magnetic field in the ion trap can be converted into the amplitudes and the phases of the THz electric field components in the orthogonal laboratory frame.
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页数：10
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