Related Experiment Video
Updated: Jun 14, 2026
13:09
Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
Published on: January 6, 2016
Testing of nonlinear diamond-turned reflaxicons
Applied Optics
|March 24, 2010
Summary
Testing nonlinear reflaxicons is challenging due to alignment sensitivity. This study demonstrates a method to accurately analyze wavefront errors, separating alignment issues from optical imperfections.
Area of Science:
- Optical engineering
- Metrology
- Precision manufacturing
Background:
- Nonlinear diamond-turned reflaxicons exhibit extreme alignment sensitivity, complicating optical testing and wavefront analysis.
- Accurate evaluation requires distinguishing wavefront aberrations from alignment errors.
Purpose of the Study:
- To describe the setup, alignment, and testing procedures for a nonlinear diamond-turned independent-element reflaxicon.
- To validate a method for analyzing interferograms and isolating alignment-induced errors.
Main Methods:
- Utilized interferograms with a known center cone misalignment.
- Employed the axicon preprocessing option within the FRINGE software for analysis.
- Unfolded resulting interferograms to determine optical path difference (OPD) errors.
Main Results:
- The FRINGE software successfully removed cone and decenter errors caused by misalignment.
- Demonstrated the ability to accurately measure OPD errors on the outer cone.
Conclusions:
- The developed method effectively analyzes wavefront errors in misaligned nonlinear reflaxicons.
- This technique aids in the precise testing and characterization of complex optical elements.
