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Optical Delay Lines: Key to Time-Resolved Measurements

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To obtain an accurate means of creating reliable delays in any time-resolved spectroscopy or dynamic experiment, several factors about the delay line stage must be considered to reduce or eliminate errors associated with linear stages.

MKS/Newport

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 retroreflector or folding mirrors on a translation stage (Figure 1). 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. Key motion-control parameters that affect the time-resolved measurements include total delay, minimum incremental motion (MIM), repeatability, accuracy, and mechanical errors. ...Read full article

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    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    positioning
    Positioning generally refers to the determination or identification of the location or placement of an object, person, or entity in a specific space or relative to a reference point. The term is used in various contexts, and the methods for positioning can vary depending on the application. Key aspects of positioning include: Spatial coordinates: Positioning often involves expressing the location of an object in terms of spatial coordinates. These coordinates may include dimensions such as...
    retroreflector
    An optical device that is designed to exhibit retroreflection; usually it consists of three mirrors that are arranged to form the corner of a cube.
    translation stage
    A small optical mounting platform that is usually mobile on ball bearings and can be driven manually or by motor to provide precision movement along two axes.
    FeaturesmirrorsnanoOpticsspectroscopyTest & MeasurementpositioningMaterialsLight SourcesindustrialAmericasreliable delaytime-resolved spectroscopytime-resolved measurementsdynamic experimentdelay line stagelinear stage erroroptical delay lineretroreflectorfolding mirrorstranslation stagemotion-control parameterstotal delayminimum incremental motiontime-resolved measurementNewportMKS

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