Achromatic catadioptric microscope objective in deep ultraviolet with long working distance

Pei Huang; Dietrich Leibfried

doi:10.1117/12.559790

22 October 2004 Achromatic catadioptric microscope objective in deep ultraviolet with long working distance

Pei Huang, Dietrich Leibfried

Proceedings Volume 5524, Novel Optical Systems Design and Optimization VII; (2004) https://doi.org/10.1117/12.559790
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

We present a microscope imaging optics system that is suitable for simultaneously detecting two species of electrically trapped atomic ions for quantum information processing. The proposed 10x objective features all-spherical surfaces in a catadioptric modification of the Schwarzschild two-mirror configuration and is achromatic at 313 and 280 nm, the two wavelengths of the laser-induced fluorescence from ⁹Be⁺ and ²⁴Mg⁺. To correct for aberrations from the fused-silica vacuum window, we use a zero-power doublet made of a positive calcium fluoride and a negative fused-silica meniscus to form an air-gapped Steinheil doublet facing the object. As a result, diffraction limited images are obtained for both wavelengths at a numerical aperture (NA) of 0.5 and a field of view (FOV) of 0.1 mm in diameter. The long working distance (> focal length) of this objective allows imaging of the ions through the vacuum window.

Citation Download Citation

Pei Huang and Dietrich Leibfried "Achromatic catadioptric microscope objective in deep ultraviolet with long working distance", Proc. SPIE 5524, Novel Optical Systems Design and Optimization VII, (22 October 2004); https://doi.org/10.1117/12.559790

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