Two phase gratings are used as beam splitter and combiner to generate a femtosecond non-cylindrical vector beam exhibiting continuously varying polarizations. Further, by adjusting the orientation of the grating vector of the beam combiner, a scalar beam can be transitioned to a vector beam, and the polarization distribution of the femtosecond laser beam can be modulated. Two-dimensional periodic surface structures comprising curved ripples are fabricated on a tungsten surface using a femtosecond non-cylindrical vector beam. By adjusting the beam polarization distribution, the bottom length of the curved ripples, i.e., the period along the vertical direction, can be decreased to 4 μm while maintaining the horizontal period at 560 nm. The microreflectance spectral measurements denote that the periodic ripples significantly reduce the reflectivity in the visible and near-infrared ranges and that the reflectivity increases as the vertical period of the curved ripples decreases. Furthermore, femtosecond laser ablation does not change the chemical components of the tungsten surface, therefore, the variation in reflectance can be solely attributed to the change in surface morphology.