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3 Benefits of Optical Monitoring During Thin Film Deposition

Seven Layer Bandpass Wave Lengths

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Precision optics applications require thin film coatings to meet very exacting specs for factors such as refractive index, optical loss, thickness, optical transmission and uniformity. To do this, manufacturers need a full precision optics coating system configured with in-situ control that directly monitors optical properties. Effects on Performance and Yield In precision optics, the acceptable… Read More

2 Considerations for Accurate Optical Monitoring

purple. blue and yellow color filters

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Throughout the monitoring process, the system manufacturer and thin film engineer have several process choices to make regarding a number of factors. How do the different monitoring options affect the level of precision? Quartz Crystal vs. Optical Monitors Quartz crystal monitoring (QCM) is used to measure physical thickness while optical monitoring systems (OMS) measure optical… Read More