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Chapter 6:
Illumination of Spectrometers and Samples: Light Sources, Transfer Systems, and Fiber Optics
This chapter addresses the basics of light sources, light collection, transfer, and re-imaging. From the perspective of optical spectroscopy, light sources can be discriminated by the intensity versus wavelength distribution character. Every light source needs an optical transfer facility to illuminate a spectrometer correctly. The light sources themselves are well specified in the literature and data sheets, and thus this chapter concentrates on the transfer and special points of interest for spectroscopic applications. The power, with respect to energy, or work of light signals is defined by the energy of the photons involved. The basics are treated in Chapter 1. Light sources emit in different ways, and thus special techniques of collection are required.
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