Engineering a coaxial visible/infrared imaging system based on monolithic multisurface optics

Xiong, Yupeng; Dai, Yifan; Tie, Guipeng; Zhang, Fan; Gan, Zihao; Chen, Shanyong

doi:10.1364/ao.57.010036

Cited by 10 publications

(1 citation statement)

References 12 publications

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“…Metal mirrors are rarely used in visible or ultraviolet systems due to ultraprecision fabrication difficulties. The surface after singlepoint diamond turning (SPDT) can be directly used in the imaging applications of infrared optical systems [1,2]. However, the soft texture of the aluminum alloy surface and its susceptibility to scratching are also apparent, thus limiting its application in the visible light field.…”

Section: Introductionmentioning

confidence: 99%

Sub-Nanometer Accuracy Combination Processing Technology for Nickel–Phosphorus Modified Surfaces Based on Aluminum Reflector Mirror

Lai

et al. 2022

Micromachines

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The surface of metal mirrors is often polished by electroless coating with a Ni–P modified layer after single-point diamond turning. In practice, however, improvements in mirror quality are closely related to the polishing environment, polishing medium, and polishing force. If not adequately controlled, processing defects such as visible scratches can lead to the deterioration of surface roughness. Based on the Ni–P modified surface of a metal reflector mirror, this study optimizes the configuration of magnetorheological figuring (MRF) fluid and polishing process parameters so that MRF high-efficiency surface modification can be realized and the scratch problem can be resolved. The processing method of a high-performance metal mirror is developed by studying the high-efficiency and high-precision processing technology based on small head smoothing. The surface roughness achieved by the proposed method was better than Ra = 0.39 nm. The ultrasonic cleaning process effectively improved the surface roughness after processing. According to the combined processing technology developed in this study, the modified layer of the parabolic mirror with a diameter of 370 mm was processed, and the surface quality was increased from RMS = 338.684 nm to RMS = 21.267 nm.

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Section: Introductionmentioning

confidence: 99%

Sub-Nanometer Accuracy Combination Processing Technology for Nickel–Phosphorus Modified Surfaces Based on Aluminum Reflector Mirror

Lai

et al. 2022

Micromachines

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Measurement of Freeform Optical Surfaces: Trade‐Off between Accuracy and Dynamic Range

Chen

Xue

Zhai

et al. 2020

Laser & Photonics Reviews

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Freeform optical surfaces are advantageous to optical designers, as they provide additional degrees of freedom for optimization. The loss of rotational symmetry, however, makes measurement of freeforms more challenging. Herein, advances in interferometric areal measurement of freeform optical surfaces, including null tests, non-null tests, near-null tests, and adaptive null tests, are reviewed. Some new developments, in the Hartmann test, deflectometry, and phase retrieval, as representatives of non-interferometric areal measurement, are then presented. Overall, the focus is on single-point-probe-based profilometry categorized into coordinate measurements and slope-or curvature-based measurements. Innovative measurement technology is trying to bridge the gap between high accuracy and high dynamic range as freeform optical surfaces are finding more applications in visible and shorter-wavelength optics.

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In situ measurement and error compensation of monolithic multisurface optics

Xiong

Luo

Dai

et al. 2021

Optics Communications

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Engineering a coaxial visible/infrared imaging system based on monolithic multisurface optics

Cited by 10 publications

References 12 publications

Sub-Nanometer Accuracy Combination Processing Technology for Nickel–Phosphorus Modified Surfaces Based on Aluminum Reflector Mirror

Sub-Nanometer Accuracy Combination Processing Technology for Nickel–Phosphorus Modified Surfaces Based on Aluminum Reflector Mirror

Measurement of Freeform Optical Surfaces: Trade‐Off between Accuracy and Dynamic Range

In situ measurement and error compensation of monolithic multisurface optics

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