Solving optimal carrier frequencies of a CGH null compensator through a double-constrained searching method based on iterative ray-tracings

Interferometry based on a computer-generated hologram (CGH) null compensator is a general method for high-precision metrology of aspherics. Because the most commonly used CGHs are the Ronchi type with only two quantization steps, tilt and defocus carrier frequencies must always be introduced to sepa...

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Veröffentlicht in:	Applied optics (2004) 2022-06, Vol.61 (16), p.4699-4709
Hauptverfasser:	Liang, Zijian, Zhao, Hongyang, Yang, Yongying
Format:	Artikel
Sprache:	eng
Schlagworte:	Carrier frequencies Compensators Iterative methods Ray tracing Search methods Versatility
Online-Zugang:	Volltext
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