Light Sources
For applications such as transmission, absorption, and reflection, illumination sources are needed. Avantes offers a wide range of different types of light sources, to suit your specific application needs. An overview of the different types of light sources can be found below.
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Halogen & Deuterium Halogen Light Sources
Avantes Deuterium light sources are known for their stable output ad are used for UV absorption or reflection measurements. These can also be used as irradiance calibration sources due to their high stability. The standard AvaLight-DH-S mixes the halogen light with the Deuterium light, thus producing a wide spectral range light source. The output spectrum of Deuterium light sources exhibits several peaks, with a prominent peak at 656 nm. The AvaLight-DH-S-BAL incorporates a dichroic beam splitter installed to minimize these peaks, providing a smooth spectrum from 200-2500 nm.
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Xenon Light Sources
Our pulsed Xenon light source is used in applications where a long lifetime and high output power is needed, such as in fluorescence measurements. This is an affordable UV source, but the spectral output is not as smooth and continuous as the AvaLight Halogen and Deuterium light sources.
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LED Light Sources
LED light sources provide high power at a precise wavelength. A typical application for AvaLight-LED sources is fluorescence. They provide a long lifetime, short warm-up time, and high stability.
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Calibration Light Sources
For wavelength calibration, Avantes offers a variety of sources including Argon, Mercury-Argon, Neon, Zinc, and Cadmium. All Avantes spectrometers are factory wavelength calibrated and do not require recalibration as they have fixed slits and optics. For those customers who wish to do their own calibrations, the AvaLight-CAL light sources can be used for recalibration purposes. For auto-calibration, AvaSoft-Fill provides a calibration procedure to make this easy.
