Design and characterization of individual addressing optics based on multi-channel acousto-optic modulator for ^171Yb^+ qubits
arxiv(2024)
摘要
We present the design and characterization of individual addressing optics
based on a multi-channel acousto-optic modulator (AOM) for trapped
ytterbium-171 ions. The design parameters of the individual addressing system
were determined based on the tradeoff between the expected crosstalk and the
required numerical aperture of the projection objective lens. The target beam
diameter and separation were 1.90 μm and 4.28 μm, respectively. The
individual beams shaped by the projection optics were characterized by an
imaging sensor and a field probe ion. The resulting effective beam diameters
and separations were approximately 2.34–2.36 μm and 4.31 μm,
respectively, owing to residual aberration.
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