Publication

Digital Holographic Microscopy (DHM): Fast and robust 3D measurements with interferometric resolution for industrial inspection

Christian Depeursinge, Etienne Cuche
2006
Conference Papers

Abstract

The use of numerical procedure at a level never reach so far in optical imaging enables DHM to overcome two cumbersome alignment procedures of interferometric microscopes: (1) fine focus of the sample, and (2) sample tilt adjustment. In addition the technology enables to retrieve the full information from a single hologram acquisition. This enables very short acquisition time, smaller than typical propagation frequencies of ambient vibrations. These instruments can be operated without vibration insulation tables. Combined with the simplicity of the opto-mechanical design and the absence of moving parts, DHM are new measurement systems with a nanometer scale resolution ready to take place in production lines.

DHM can be used to characterized shapes and surface roughness of a large variety of samples and their use for industrial inspection should definitely spread during the next years

Official source

https://infoscience.epfl.ch/entities/publication/8a77d00e-c7d1-44ad-a314-a7ef9ee79958

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Christian Depeursinge, Etienne Cuche
2006
Conference Papers

Abstract

DHM can be used to characterized shapes and surface roughness of a large variety of samples and their use for industrial inspection should definitely spread during the next years

Official source

https://infoscience.epfl.ch/entities/publication/8a77d00e-c7d1-44ad-a314-a7ef9ee79958

About this result

Related concepts (32)

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In statistics, quality assurance, and survey methodology, sampling is the selection of a subset or a statistical sample (termed sample for short) of individuals from within a statistical population to estimate characteristics of the whole population. Statisticians attempt to collect samples that are representative of the population. Sampling has lower costs and faster data collection compared to recording data from the entire population, and thus, it can provide insights in cases where it is infeasible to measure an entire population.

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Digital Holographic Microscopy (DHM): Fast and robust 3D measurements with interferometric resolution for industrial inspection

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