Ms. Erika Petrak Profile

Erika Petrak

Senior Optical Engineer at Meadowlark Optics Inc

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Publications (2)

Proceedings Article | 13 March 2015 Paper

Measurement of polarization assemblies for the Daniel K. Inouye Solar Telescope

William Schubert, Erika Petrak, Thomas Baur

Proceedings Volume 9369, 93690N (2015) https://doi.org/10.1117/12.2077749

KEYWORDS: Wave plates, Solar telescopes, Polarization, Polymers, Ellipsometry, Polarimetry, Quartz, Polarizers, Temperature metrology, Sun

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Proceedings Article | 21 May 2014 Paper

Liquid crystals for polarization control in the MWIR

Erika Petrak, Thomas Baur

Proceedings Volume 9099, 909910 (2014) https://doi.org/10.1117/12.2053458

KEYWORDS: Mid-IR, Liquid crystals, Wave plates, Polarizers, Sapphire, Transmittance, Polarization, Optical filters, Magnesium fluoride, Polarization control

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