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arXiv · 2207.06878

Ion trap with gold-plated alumina: substrate and surface characterization

Myunghun Kim·Keumhyun Kim·Jungsoo Hong·Hyegoo Lee·Youngil Moon·Wonchan Lee·Sehyun Kim·Taekyun Ha·Jae-Yoon Sim·Moonjoo Lee
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Abstract

We describe a complete development process of a segmented-blade linear ion trap. Alumina substrate is characterized with an X-ray diffraction and loss-tangent measurement. The blade is laser-micromachined and polished, followed by the sputtering and gold electroplating. Surface roughness is examined at each step of the fabrication via both electron and optical microscopies. On the gold-plated facet, we obtain a height deviation of tens of nanometers in the vicinity of the ion position. Trapping of laser-cooled $^{174}$Yb$^{+}$ ions is demonstrated.

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Myunghun Kim, Keumhyun Kim, Jungsoo Hong, Hyegoo Lee, Youngil Moon, Wonchan Lee, Sehyun Kim, Taekyun Ha, Jae-Yoon Sim, Moonjoo Lee. 2022-07-14. Ion trap with gold-plated alumina: substrate and surface characterization. https://doi.org/10.1063/5.0112583

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