DMD based UV absorption detector for liquid chromatography

A detector for liquid chromatography comprising:

• a light delivery system comprising a light source that emits light having a plurality of wavelengths;
• and
• a wavelength selection module optically coupled to the light delivery system, the wavelength selection module comprising:
• a first spectrally dispersive optical element to receive the light from the light delivery system and to provide diffracted light having a linear dispersion of the wavelengths;
• a digital micro-mirror device configured to receive the diffracted light and to selectively reflect two or more of the wavelengths into an output beam;
• and
• an optical output subsystem optically coupled to the digital micro-mirror device to receive the output beam from the digital micro-mirror device and provide a single image that simultaneously includes the two or more wavelengths in the output beam.