Parametric removal rate survey study and numerical modeling for deterministic optics manufacturing

Vipender Singh Negi, Harry Garg, R. R. Shravan Kumar, Vinod Karar, Umesh Kumar Tiwari, Dae Wook Kim

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Surface errors directly affect the performance of optical systems in terms of contrast and resolution. Surface figure errors at different surface scales are deterministically removed using controlled material removal rate (MRR) during a precision optics fabrication process. We systematically sectioned the wide range of MRR space with systematic parameters and experimentally evaluated and mapped the MRR values using a flexible membrane-polishing tool. We performed numerical analysis with a tool influence function model using a distributed MRR-based Preston’s constant evaluation approach. The analysis procedure was applied to a series of experimental data along with the tool influence function models to evaluate removal rates. In order to provide referenceable survey data without entangled information, we designed the experiments using Taguchi’s L27 orthogonal array involving five control parameters and statistically analyzed a large number of programmatic experiments. The analysis of variance showed that the most significant parameters for achieving a higher MRR are the spot size and active diameter.

Original languageEnglish (US)
Pages (from-to)26733-26749
Number of pages17
JournalOptics Express
Volume28
Issue number18
DOIs
StatePublished - Aug 31 2020

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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