Cryogenic Compatible Achromatic High NA Objectives
maximum collection efficiency, low focal displacement
Many high spatial resolution spectroscopy measurements, such as
confocal micro-luminescence, fluorescence & micro-Raman require
cryogenic temperatures, where conventional room temperature objec-
tives cannot be employed.
Now, attocube offers two versions of apochromatic objectives for low
temperature operation. Whereas one version features high numerical
apertures (NAs) of 0.81-0.82 within six color bands ranging from the
UV to the IR, the other line of apochromatic objectives boosts the
working distance to 5.0 mm while maintaining high NA of 0.63-0.