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Industry Application Notes

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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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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21 CFR Part 11 Compliance? We’ve got it!

Posted on: July 11th, 2019

The U.S. Food and Drug Administration (FDA) regulates a variety of industries. Title 21 CFR Part 11, the Electronic Records and Electronic Signatures ruling, is one of the more important regulations pertaining to spectroscopy in industries subject to USDA oversight. This important regulation provides for guidance on the types of software allowed for use in…

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Applications for Raman Spectroscopy

Posted on: June 27th, 2019

Raman spectroscopy exploits the inelastic scattering of photons off of covalently bonded molecules to identify functional groups, crystallinity, and stresses and strains.  It is a widely used spectroscopy technique for both quantitative and qualitative molecular analysis, with applications ranging from semiconductor manufacturing to airport security screening.  Because of the extensive range of applications for Raman…

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Exploring Colorimetry

Posted on: June 26th, 2019

The concept of color is one of the most fundamental building blocks of sense and perception which we use to interpret the world around us.  Color perception is so important that even very young children can differentiate objects by color.    Therefore, it may come as a shock that most people go their entire lives without…

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