Spectral Leakage
Definition
Unwanted radiation passing through the measurement path and contributing to the detected signal. Irradiance is radiant power incident per unit area. Electrical lamp wattage is not specimen irradiance. Filters, geometry and detector response matter when interpreting an optical result.
- Context
- Optical exposure
For example, a detector can record unwanted transmitted illumination, so apparent signal need not arise entirely from the intended specimen response.
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