Xin Li

Dynamic feature-size tuning in femtosecond-laser nanofabrication with phase-modulated radially polarized beams

Femtosecond laser processing provides a versatile route for high-precision material structuring, yet the dynamic modulation of nanoscale feature sizes remains constrained by the far-field diffraction limit and insufficient control over local energy deposition. To overcome these limitations, we report a nanofabrication...