期刊
OPTICS LETTERS
卷 44, 期 8, 页码 2000-2003出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.44.002000
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资金
- II-VI Foundation (Block Gift Program)
We report the simulation of an adaptive interferometric null test using a high-definition phase-only spatial light modulator (SLM) to measure form and mid spatial frequencies of a freeform mirror with a sag departure of 150 mu m from its base sphere. A state-of-the-art commercial SLM is modeled as a reconfigurable phase computer generated hologram (CGH) that generates a nulling phase function with close to an order of magnitude higher amplitude than deformable mirrors. The theoretical uncertainty in form measurement arising from pixelation and phase quantization of the SLM is 50.62 nm RMS. The calibration requirements for hardware implementation are detailed. (c) 2019 Optical Society of America
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