Introduction
Although UV/Vis and UV/Vis/NIR spectrophotometers from PerkinElmer come equipped with their own light sources — a tungstenhalogen visible lamp and a deuterium ultraviolet lamp — often there is a research need to characterize the spectral energy profile of custom light sources. These light sources can exist in many forms, from lasers, LED’s, architectural light sources, broad continuum high-pressure arc lamps, low-pressure discharge lamps, etc. Not only is the relative power of a lamp important, but also the energy profile as a function of wavelength.
The PerkinElmer LAMBDA 850+/1050+ high-performance spectrometers are ideally suited for characterizing custom light sources. The removable source platform allows many types and sizes of custom lamps to be fitted easily. UV WinLab 6 software allows custom light sources to be defined in the software, and offers direct control over the energy scan parameters. The wide gain control ensures that the profile of virtually any light source can be scaled properly. The capability to bypass the normal order sorting filters allows artifact-free energy profiles to be acquired.
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