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Selecting delay lines for optical time-resolved measurements

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Selecting delay lines for optical time-resolved measurements

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One of the most critical elements of any time-resolved spectroscopy and dynamics experiment is the optical delay line. A typical optical delay line consists of a retro-reflector or folding mirrors on a translation stage. See Newport's Optical Delay Line Kit for further discussion of component selection. When selecting the translation stage, certain parameters from the stage and the driver or controller should be taken into account as they affect data analysis and interpretation. In this note, the key motion control parameters including total delay, Minimum Incremental Motion (MIM), repeatability, accuracy and mechanical errors which affect the time-resolved measurements are briefly reviewed.

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