What is a spectrometer’s Blaze Wavelength?
The blaze wavelength is the wavelength at which the grating is most efficient. Take a look at the grating efficiency curve for the UV BLUE-Wave spectrometer model: This grating is most efficient at 300 nm, so the blaze wavelength is 300 nm. This is determined mostly...What is a spectrometer slit?
The slit is an opening that controls how much light enters the spectrometer. The width of the slit affects resolution; the narrower the slit, the higher the resolution. However, narrower slits also decrease signal strength. These two factors must be balanced when...What is Full Width at Half Maximum (FWHM)?
The full width at half maximum (FWHM) is the width of a line shape at half of its maximum amplitude, as shown below: A closely related quantity is the half width at half maximum (HWHM) or the Resolving Resolution and it is half of the FWHM. For Gaussian line shapes,...What is Spectrometer Sensitivity?
There are many different definitions of sensitivity. For StellarNet, we use the word sensitivity to mean the total system response of a spectrometer versus wavelength. This is a combination of the detector response, grating response, and any loss due to optics....What is Resolution?
Broadly speaking, resolution is the ability to detect differences in measured units. For spectroscopy experiments, the measured unit is the quantity used to describe the photon (e.g. wavelength, wavenumbers, frequency, energy). For example, if the resolution of an...
Introducing our new Applied Spectroscopy Division
New Handheld Raman!
New! ChemWiz-ADK Handheld NIR Spectrophotometer with on board chemometrics and spectral matching!
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Check out our SpectroChemistry Systems for UV-VIS and Fluorescence Applications
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New Spectrometer Python Application Driver
for Windows, Linux, RasPi, Mac
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HYPER-Nova Highest Performance Raman Spectrometer
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