Programmable Holographic Optical Elements as Adaptive Optics in Optical Diagnostics Devices

James D. Trolinger; Amit Lal; Joshua Jo; Stephen Kupiec

doi:10.4028/www.scientific.net/KEM.437.108

Paper Titles

Development of Innovative Fringe Locking Strategies for Vibration-Resistant White Light Vertical Scanning Interferometry (VSI)
p.89

Compensation of Tilt Angles and Verification of Displacement Measurements with a Fabry-Perot Interferometer
p.95

A Compact Signal Processing with Position Sensitive Detectors Utilized for Michelson Interferometer
p.98

Improvement on Measuring Optical Nonlinear Phase Shift by Self-Aligned Interferometer
p.103

Programmable Holographic Optical Elements as Adaptive Optics in Optical Diagnostics Devices
p.108

High-Resolution Dimensional Metrology for Industrial Applications
p.113

Traceability for Areal Surface Texture Measurement
p.121

Industrial Applications of Image Based Measurement Techniques in Aerodynamics – Problems, Progress and Future Needs
p.126

Development of a Print-Through Phenomenon Measurement System Using the Fringe Reflection Method for the Fiber Reinforced Plastics
p.131

HomeKey Engineering MaterialsKey Engineering Materials Vol. 437Programmable Holographic Optical Elements as...

Programmable Holographic Optical Elements as Adaptive Optics in Optical Diagnostics Devices

Abstract:

This paper reports a combined, Hartmann/Digital Holographic interferometry inspection system for inspecting optical components that do not easily lend themselves to conventional interferometric or Hartmann inspection. A programmable holographic optical element (HOE) preconditions wavefronts to extend the dynamic range of interferometry measurements and also transforms the same system into a scanning Hartmann operation, which has lower resolution but higher dynamic range. Inspecting aspherical surfaces with existing interferometers requires special, computer generated holographic optical elements to transform the wavefront to within the dynamic range of the interferometer. The Hartmann measurement provides the information required to precondition a reference wave that avails the measurement process to the more precise phase shifting interferometry. The SLM offers yet other benefits including a method for minimizing the effects of speckle on the measurement. The paper provides example measurements, discusses the limitations, and suggests other potential applications.

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Periodical:

Key Engineering Materials (Volume 437)

Pages:

108-112

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.437.108

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Online since:

May 2010

Authors:

James D. Trolinger, Amit Lal, Joshua Jo, Stephen Kupiec

Keywords:

Adaptive Optics, Digital Holography, Holographic Optical Elements

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References

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