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Spectra

Irradiance Measurement with Avantes Solar Simulator

Posted on: July 26th, 2021

Background/Applications: Spectral irradiance is the irradiance of a surface per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength. The two forms have different dimensions: spectral irradiance of a frequency spectrum is measured in watts per square meter per hertz (W·m−2·Hz−1), while spectral irradiance of…

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UV Radiometry Spectra

Posted on: April 21st, 2021

Radiometry deals with the measurement of all optical radiation inclusive of the visible portion of this radiant energy. Irradiance is a parameter of radiometry that describes the amount of radiant power upon a surface per unit area. These measurements can be done in the UV, VIS and NIR wavelength ranges. Irradiance measurements are useful in…

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Parylene Thin Film Measurements

Posted on: March 17th, 2021

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 a substrate surface to be coated, or onto a previously deposited…

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Chemometrics/Fruit Analysis

Posted on: February 11th, 2021

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 to…

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Fluorescence Spectroscopy for Non Invasive Procedures

Posted on: January 11th, 2021

Conducted by: David Ademe, Avantes Inc. Theme: Fluorescence Background/Applications: Fluorescence spectroscopy can be used in a wide range of applications, including medical research and analysis. There are a number of researchers that use a fiber-optic probe for in vivo fluorescence spectroscopy to study and test for cancerous cells. Fiber optic needle biopsy plays an important…

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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 Metal Identification with Portable LIBS Instrument

Posted on: October 20th, 2020

The metal sorting industry relies heavily on metal identification methods such as LIBS to sort metal. Metals, such as Aluminum 1100 and Aluminum 6063 can be challenging to identify without LIBS. In this experiment, we will test several types of metal and identify them based on their spectral lines. Laser Induced Breakdown Spectroscopy (LIBS) is…

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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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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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UV Transmission of Sunglasses

Posted on: July 25th, 2020

Transmission spectra can be used in a wide range of measurements and data collection to reveal unique and unknown properties of materials. It is crucial to understand how materials that we interact with behave when exposed to photons across the UV/VIS/NIR spectrum. One excellent example of this is sunglasses. It is important to know if…

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