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Industry Application Notes

Spectra: NIR Grain Analysis

Posted on: November 21st, 2019

Conducted by: David Ademe, Avantes Inc. Theme: Grains/Agriculture Background/Applications: Absorption and reflection measurements can be used to determine the freshness of various crops, from fruits and vegetables to even grains. Not only can reflection and absorption spectra be used to identify the properties of different types of grains through chemometric models, but it can also…

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Spectroscopy in Sustainable Soil Management

Posted on: November 21st, 2019

Agricultural research of today goes into feeding the world’s population tomorrow. Year after year, farmers try to produce more food out of the same resources, and rapidly changing climate conditions only heighten the pressure on the world’s food supply. Changing weather patterns means droughts deepen, floods are more frequent, extremes of heat and cold swing…

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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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Spectroscopy Applications: Smart Biopsy and BioMedical Sensing

Posted on: October 24th, 2019

  In the realm of life science research and clinical instrumentation, optical spectroscopy, and sensing play critical roles in a variety of areas. Optical spectroscopy provides an ideal means for non-destructive sampling and real-time analysis in vivo or in the lab. The instrumentation needs of these applications have evolved rapidly in recent years with the…

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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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Spectroelectrochemistry Applications and Instrumentation

Posted on: September 26th, 2019

Electrochemistry is an extremely valuable tool for examining the kinetics of a wide range of oxidation-reduction reactions.  In these types of reactions, electrons are exchanged between atoms spontaneously,  which forms the basic physical principle behind chemical batteries.  Just as specific oxidation-reduction reactions can cause electron flow, i.e. current, the same process can also work in…

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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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Spectroscopy Applications in the Development of VCSEL Technology

Posted on: September 12th, 2019

Vertical Cavity Surface Emitting Lasers (VCSELs) are instrumental in many recent technological advancements, with several advantages over Light Emitting Diodes (LEDs) and Edge Emitting Lasers (EELs). Manufacturers of these devices, as well as device integrators, require optical spectrometers featuring high resolution, high-speed triggering response, and short integration time specifications to test VCSELs. Avantes is the…

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Laser-Induced Breakdown Spectroscopy in the Physical Sciences

Posted on: August 20th, 2019

Laser-Induced Breakdown Spectroscopy employs a laser to ablate the surface of a sample which creates a small plume of plasma. Using a form of atomic emission spectroscopy, the light of this plasma is captured and analyzed for quantitative and qualitative atomic properties. As the popularity of this method of analysis grows and researchers find new…

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Spectroscopy in Thin Film Fabrication

Posted on: July 23rd, 2019

Used across many industries such as semiconductors, technology gadgets, and optical elements, thin films carry a very important roll in our world. Because of its wide range in applicability, the accuracy of thickness and repeatability are extremely important.  Therefore, a measurement technique is crucial to ensure surface thickness accuracy. Presently there are three common techniques…

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