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Posts Tagged ‘Environmental’

Absorption and Reflection Spectra of Lichen

Posted on: April 27th, 2020

Absorption and reflection spectra can reveal the unique properties of many different types of materials and samples. This includes biological samples and plant life. This can range from leaf’s, flower petals, grass and lichen. The optical properties of lichens have been traditionally explored in the context of geological mapping where the encrustation of lichens on…

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Broadband Solar Irradiance Spectra

Posted on: April 23rd, 2019

This month, the Avantes US engineering team measured the broadband spectra of the sun from the Avantes, Inc. offices in Louisville, CO between 300 nm and 1100 nm. The Louisville location is situated at an elevation of 5,335 feet (1626 meters). Measurements were taken over two consecutive days in mid-April. The first day of solar…

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Comparison of Water Quality with Absorbance Spectra

Posted on: March 29th, 2019

This month’s spectra feature compares the spectra of tap water at the Avantes, Inc. offices in Louisville, Colorado to spectra of a water sample drawn from a tributary of Coal Creek. The stream water predictably evidenced higher absorption and lower transmission values due to particulate matter and potential contaminants. System Configuration An absorption setup was…

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