PARISS micro-spectrometer wavelength
calibration spectrum from 365 to 920 nm
The Full Width at Half Maximum of
the Hg 405 nm doublet is 1 nm
The wavelength dispersion varies with the refractive
index of glass,and therefore spectral resolution.
Prisms present highest spectral resolution in the
UV and blue, and lowest resolution in the red
•
Spectral range: 365 - 920 nm simultaneously
•
Spectral resolution ~1 nm at 436 nm
•
Transmission: Prism micro-spectrometers transmit up
to 100% of all wavelengths above 390 nm to provide
sensitivity that exceeds most, if not all diffraction
gratings. A prism completely eliminates the problems
associated with higher order diffraction that are always
present with diffraction gratings
See how diffraction gratings
produces high order diffraction that
pollutes the spectrum at the detector
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