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

F. L. Constantin

doi:10.1117/12.2581874

8 November 2020 Retrieval of the polarization ellipse of a THz-wave from precision measurements of lightshifts with cold trapped HD+

F. L. Constantin

Author Affiliations +

Proceedings Volume 11525, SPIE Future Sensing Technologies; 115251D (2020) https://doi.org/10.1117/12.2581874
Event: SPIE Future Sensing Technologies, 2020, Online Only

Abstract

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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F. L. Constantin "Retrieval of the polarization ellipse of a THz-wave from precision measurements of lightshifts with cold trapped HD+", Proc. SPIE 11525, SPIE Future Sensing Technologies, 115251D (8 November 2020); https://doi.org/10.1117/12.2581874

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