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Updated: Jun 15, 2026

Intermediate Strain Rate Material Characterization with Digital Image Correlation

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Control of pit geometry on video disks.

J G Dil, C A Wesdorp

|March 10, 2010

Summary

Optical techniques precisely measure video disk pit geometry during mastering and replication. This study focuses on determining pit slope and depth during resist layer formation in development.

Area of Science:

Optics and Materials Science
Optical Engineering
Data Storage Technology

Background:

Accurate characterization of pit geometry is crucial for high-fidelity video disk mastering and replication.
Existing methods may lack precision in determining dynamic pit formation parameters.

Purpose of the Study:

To present novel optical techniques for measuring video disk pit geometry.
To specifically determine the slope and depth of pits during their formation in the resist layer.

Main Methods:

Utilizing advanced optical measurement techniques.
Monitoring pit formation in the resist layer during the development process.
Analyzing geometric parameters such as slope and depth.

Main Results:

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Demonstrated optical methods for precise pit geometry measurement.
Successfully determined pit slope and depth during resist development.
Provided insights into pit formation dynamics.

Conclusions:

Optical techniques offer effective solutions for characterizing video disk pit geometry.
Precise measurement of pit formation parameters is achievable.
The findings contribute to improved video disk mastering and replication processes.