3 papers
physics.optics2026
Invertible mapping between structured light and vector terahertz emission
Amirreza Sadeghpour, Daryoush Abdollahpour
Terahertz (THz) radiation provides a powerful platform for ultrafast spectroscopy, imaging, and communication, yet deterministic control over its spatial and polarization structure…
physics.optics2025
Formation of axially modulated plasma strings by filamentation of interfering femtosecond Bessel beams
Fatemeh Mansourimanesh, Amirreza Sadeghpour, Daryoush Abdollahpour
We numerically investigate the formation of axially modulated plasma strings through the filamentation of two interfering femtosecond Bessel beams. The constituent Bessel beams hav…
physics.optics2023
Filamentation of Femtosecond Vector Beams
Amirreza Sadeghpour, Daryoush Abdollahpour
We numerically study the filamentation of femtosecond vector beams with spatially varying polarization profiles in air. The vector beams include azimuthal, radial, and spiral cylin…