text: Yo, check it out, we got news to share,
  'Bout pulsed terahertz radiation in the air.
  Microstructured photoconductive antennas in the game,
  Emitting and detecting, it's all about the aim.
  
  The electrode geometry flips the desired field,
  Radial and azimuthal polarization revealed,
  No destructive interference, we keep it clean,
  With a second structure, interference unseen.
  
  Freely propagating, these THz waves go,
  Divergent and refocused, watch 'em flow.
  They're like Bessel-Gauss modes, the lowest order,
  Divergence like linear polarized beams, no disorder.
  
  But wait, there's more, we got detection too,
  Sensitive to modes, yeah, we know what to do.
  Radially polarized radiation, we got it covered,
  Mode-sensitive detection, innovation discovered.