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Spectra Feature: Buckets of Blood!

Posted on: October 25th, 2019

This month’s spectra celebrates the Halloween season as we measure spectra results obtained from BLOOD! Background/Applications: Absorption spectroscopy is used across a wide range of industries and is an effective form of scientific analysis in many fields of research. This includes the medical field for studying blood. For example, absorbance spectroscopy has been used to…

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Spectra Feature: Electrochemical Response

Posted on: September 26th, 2019

Background This spectra feature was provided by Pine Instruments as an example of a spectroelectrochemistry application that measures electrochemical response over a range of applied electrical potential and correlated against energy absorption by wavelength. Researchers Greenlee, et al. were measuring the electrochemical response of PMDI’s that were functionalized with 4-(dimethylamino) pyridinium (DMAP+) groups.  The functionalization…

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Spectra Feature: Single and Multi-Mode VCSEL Testing

Posted on: September 12th, 2019

This Month’s spectra were contributed by a current Avantes customer in the manufacturing of Vertical Cavity Surface Emitting Lasers (VCSEL). Parameters Measured We utilize Avantes spectrometers to measure spectral peak wavelength, centroid, SMSR, FWHM, and RMS spectral bandwidth of a broad range of VCSEL-based laser products. Wavelength Range 650nm to ~1000nm Laser Power 10’s of…

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Spectra: Thin Film

Posted on: July 16th, 2019

Avantes engineers have been thinking “thin” this month, thin film that is. We are sharing thin film measurement data from a mulit-layer deposition collected through collaboration with Alan Streeter and Boulder Optical Design

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Spectra: Paint Color

Posted on: June 24th, 2019

Spectra of the Month for June investigated Color measurements using Behr paint samples obtained from a local hardware store. Behr publishes color values for their paints which were used to validate our results.

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Spectra: CBD Oil Chemometrics

Posted on: May 21st, 2019

For the featured spectra of the month, the Avantes team ran a series of experiments for a local Louisville, Colorado producer of hemp and CBD oils and extracts and developed a simple chemometric model for CBD concentration in the process using Panorama © Software from LabCognition.

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Spectra: Broad Band Solar Irradiance

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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Spectra: Water Comparison

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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