Abstract

Laser pulses from diode based laser systems in the UV range are of great interest in the fields of microscopy and spectroscopy. Of particular interest is the wavelength range between 280 and 300 nm where the fluorescence of aromatic amino acids such as tryptophane / thryrosine can be excited. Up to now this spectral range was only accessible through an expensive combination of amplified Ti:Sapphire laser with an OPO, with power inefficient pulsed LED or frequency doubled supercontinuum lasers (with optical output levels in µW range at MHz repetition rate).

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