• Laser & Optoelectronics Progress
  • Vol. 59, Issue 2, 0222001 (2022)
Jiahui Xia, Fang Li, ShuJin Deng*, and Haibin Wu
Author Affiliations
  • State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China
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    DOI: 10.3788/LOP202259.0222001 Cite this Article Set citation alerts
    Jiahui Xia, Fang Li, ShuJin Deng, Haibin Wu. Design and Test of High-Resolution Imaging System for Ultracold Atoms[J]. Laser & Optoelectronics Progress, 2022, 59(2): 0222001 Copy Citation Text show less
    Lightpath structure of microscopic objective system
    Fig. 1. Lightpath structure of microscopic objective system
    Results of image quality evaluation of microscopic objective system. (a) Spot diagram; (b) ray aberration; (c) MTF curves; (d) wave aberration
    Fig. 2. Results of image quality evaluation of microscopic objective system. (a) Spot diagram; (b) ray aberration; (c) MTF curves; (d) wave aberration
    MTF curves of optical system under different thickness of vacuum window
    Fig. 3. MTF curves of optical system under different thickness of vacuum window
    Photomechanical structure of microscopic objective lens. (a) Design results; (b) physical drawing
    Fig. 4. Photomechanical structure of microscopic objective lens. (a) Design results; (b) physical drawing
    Preliminary test lightpath of resolution board
    Fig. 5. Preliminary test lightpath of resolution board
    High resolution imaging system. (a) Lightpath; (b) ray aberration; (c) spot diagram
    Fig. 6. High resolution imaging system. (a) Lightpath; (b) ray aberration; (c) spot diagram
    Point spread function test. (a) Pinhole image under electron microscope; (b) pinhole diffraction image on CCD; (c) diffraction pattern of pinhole; (d) Gaussian fitting PSF
    Fig. 7. Point spread function test. (a) Pinhole image under electron microscope; (b) pinhole diffraction image on CCD; (c) diffraction pattern of pinhole; (d) Gaussian fitting PSF
    LensSurface No.Radius /mmThickness /mmMaterialSemi-diameter /mm
    LC1315-B1Infinity3.500N-BK725.4
    238.59022.170Air25.4
    KBX151AR389.47010.362N-BK725.4
    4-89.4706.890Air25.4
    LE1418-B547.8707.290N-BK725.4
    6119.3205.790Air25.4
    Custom lens 1732.73212.635N-BK725.4
    8157.8374.910Air25.4
    Custom lens 2912.7114.003N-BK79.6
    1021.2302.908Air9.6
    Vacuum window11Infinity3.350Silica25.0
    Vacuum chamber12Infinity10.000Vacuum25.0
    Table 1. Specific parameters of microscopic objective system
    Materialλ /nmResolution /μmNAFOV /μm
    Li6710.740.55280
    Na5890.640.56280
    K7670.850.55280
    Rb7800.870.55280
    Cs8520.950.55280
    Table 2. Parameters of common elements in ultracold atoms
    ParameterValue
    Radius /λ3/2
    Surface irregularity /λ1/4
    Thickness /mm±0.1
    Air space /mm±0.05
    Tilt /(')1
    Decentration /mm±0.02
    Refractive index0.0005
    Table 3. Tolerance setting of microscopic objective lens
    Probability /%MTF threshold
    90>0.30697373
    80>0.33699300
    50>0.41048692
    20>0.46395389
    10>0.48135166
    Table 4. Analysis results of Monte Carlo
    Jiahui Xia, Fang Li, ShuJin Deng, Haibin Wu. Design and Test of High-Resolution Imaging System for Ultracold Atoms[J]. Laser & Optoelectronics Progress, 2022, 59(2): 0222001
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