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Industry Application Notes

eBook: Improving the Accuracy of Optical Coating Monitoring

Posted on: February 11th, 2021

Avantes is a leader in the field of fiber optic spectroscopy offering a complete line of spectrometers, light sources, fiber optics, and sample interface accessories. Avantes has nearly 25 years of experience working with optical spectroscopy applications across many industries. Boulder Optical Design is dedicated to serving the optics industry with high-level scientific and technical…

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Chemometrics/Fruit Analysis

Posted on: February 11th, 2021

Background/Applications: The application of visible (400 nm to 750 nm) and near-infrared red (750 nm to 2500 nm) region spectroscopy to assess fruit and vegetables is an efficient way to measure the properties of the fruit, as opposed to multi or hyperspectral imaging. Vis spectroscopy targets color assessment and pigment analysis, while NIR spectroscopy has been applied…

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Understanding Spectrometer Resolution Specifications

Posted on: January 11th, 2021

Resolution is one of the key specifications discussed in a spectrometer purchase decision. But resolution specifications can be overstated by manufacturers if the proper means of measuring resolution is not well understood by spectrometer buyers. For one thing, maximizing resolution might not be recommended for specific applications and can actually impede performance. The purpose of…

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Fluorescence Spectroscopy

Posted on: January 11th, 2021

Fluorimeters are widely utilized for the quantitation of biological compounds in solution, with applications ranging from environmental/agricultural water monitoring to DNA sequencing. These devices measure fluorescence by exciting a sample with an integrated light source and collecting the emitted light using either filtered detectors or embedded spectrometers. Historically laboratory fluorimeters utilized spectrometers due to their…

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Thin Film Spectra Experiment

Posted on: November 23rd, 2020

Conducted by: David Ademe, Avantes Inc. Theme: Thin film Measurement Background/Applications: Thin films play a vital role in a variety of industries and applications, such as consumer electronics, semiconductors and optics. Thin film deposition refers to the process of applying a very thin film of material, typically between a few nanometers to 100 micrometers, onto…

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Aluminum Sorting with Portable LIBS Instrument

Posted on: October 20th, 2020

Laser Induced Breakdown Spectroscopy (LIBS) is a type of atomic emission spectroscopy which uses a highly energetic laser pulse as the excitation source. The laser is focused to form a plasma, which atomizes and excites samples. The formation of plasma begins when the focused laser achieves a certain threshold for optical breakdown. This can be…

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Chemometric Model and Absorption of Protein Powder

Posted on: September 28th, 2020

Absorption measurements can be used to determine the properties of various samples, such as concentrations of chemicals and the quality of plastics. Not only can absorption spectra be used to identify the characteristics of many types of samples, but it can also be used to characterize the unique spectra of each sample to generate a…

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NanoTech Absorbance Spectroscopy

Posted on: August 27th, 2020

Most people in the scientific community understand that size and shape dictate the absorption and emission properties of quantum dots. This is why optical properties of quantum dots can be easily tuned, leading to their utilization in countless applications ranging from optoelectronics to molecular biology. Not as widely known is that the size-dependent absorption properties…

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Fluorescence of Green and Blue Proteins

Posted on: August 24th, 2020

Measuring the Fluorescence of Green and Blue Proteins in Algae: Bioluminescence from marine microorganisms has been observed by many people at various beaches across the world. A bright bursting energy of light is observed when energy is transferred to the fluorescent protein (GFP). One example of this is in Aquorea Victoria, a bioluminescent jellyfish. The…

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LED Spectroradiometry

Posted on: July 29th, 2020

The lighting industry has gone through a rapid transition over the past ten years with the commercial success of LED lighting.  This boom in LED lighting has been fueled by a trifecta of clean energy legislation, increased luminous flux, and decreased costs.  The data in figure 1 shows that LED illumination has finally reached the…

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