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Experimental Setup

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A Single Trapped Rydberg Ion

Part of the book series: Springer Theses ((Springer Theses))

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Abstract

This chapter deals with the main parts of the laboratory and how they come together for experiments to be carried out. During experiments trapped ions are manipulated using laser pulses. In Sect. 3.1 general experimental sequences are described and experimental requirements are established. In the subsequent sections systems developed to meet these requirements are presented, namely the linear Paul trap (Sect. 3.2), laser systems (Sect. 3.3) and electronic control systems (Sect. 3.4).

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Notes

  1. 1.

    This n-dependence can be understood in terms of the n-dependence of the ladder operators \(\hat{a}\) and \(\hat{a}^\dagger \).

  2. 2.

    With regards the transitions driven in the experiment and the typical trapping frequencies used.

  3. 3.

    Hamamatsu Photonics H10682-210.

  4. 4.

    Andor iXon3 897.

  5. 5.

    Toptica DL pro.

  6. 6.

    Toptica TA pro; a high-power source is used because the \(674\,\mathrm {nm}\) \(5S_{1/2} \leftrightarrow 4D_{5/2}\) transition is electric-dipole-forbidden and relatively high laser light intensities are required to drive it.

  7. 7.

    Toptica TA-FHG pro.

  8. 8.

    Originally a TeraXion PS-NLL DFB semiconductor laser was used. The power spectrum consists of a Lorentzian line superposed onto a broad envelope. While 80\(\mathrm {\%}\) of the laser power lies within \(2\pi \times 12\,\mathrm {kHz}\) of the centre frequency, 8\(\mathrm {\%}\) of the laser power lies outside \(2\pi \times 1\,\mathrm {MHz}\) of the centre frequency (using an observation time of \(1\,\mathrm {ms}\)). The broad envelope does not allow stable locking of the 608–\(618\,\mathrm {nm}\) laser light to the reference cavity, and it inhibits coherent excitation of Rydberg states using 304–\(309\,\mathrm {nm}\) laser light. We now use a NKT Koheras BASIK E15 DFB fibre laser which has a narrow power spectrum and allows stable locking of the 608–\(618\,\mathrm {nm}\) laser light.

  9. 9.

    Manlight EYFA-CW-SLM-P-TKS.

  10. 10.

    Toptica TA pro.

  11. 11.

    Covesion MSFG612-0.5-40.

  12. 12.

    Toptica SHG pro.

  13. 13.

    InsaneWare blu-ray diode used originally, recently replaced by a fibre-coupled system Thorlabs LP405-SF10.

  14. 14.

    Toptica DL pro.

  15. 15.

    NKT LMA-10-UV.

  16. 16.

    Stable Laser Systems.

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Authors and Affiliations

  1. Department of Physics, AlbaNova University Center, Stockholm University, Stockholm, Sweden

    Gerard Higgins

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  1. Gerard Higgins
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Correspondence to Gerard Higgins .

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Higgins, G. (2019). Experimental Setup. In: A Single Trapped Rydberg Ion. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-030-33770-4_3

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