Spectral Vector Beams for High-Speed Spectroscopic Measurements

Spectroscopic measurements are amongst the most important optical experimental methods with applications ranging from physics to chemistry, material science, and biology [1] . Conventionally, spectroscopy is performed by measuring wavelength-dependent changes in the transmitted light. In one recent study, it was shown that a strong correlation between a transverse position and the polarization in spatial vector beams can be beneficially applied in high-speed kinematic sensing [2] . We extend this idea to the spectral domain and generate states of light, in which beams have a varying polarization vector across their frequency spectrum. We term such states of light spectral vector beams and use them for spectroscopic measurements.