Skirting Terahertz Waves in a Photo-excited Nanoslit Structure
arXiv:1404.0393 · doi:10.1063/1.4871305
Abstract
Terahertz fields can be dramatically enhanced as they propagate through nanometer-sized slits. The enhancement is mediated by significant accumulation of the induced surface charges on the surrounding metal. This enhancement is shown here to be dynamically modulated and the nanoslits are gradually shunted using a copropagating optical beam. The terahertz fields are found to skirt the nanoscale photo-excited region underneath the slits, scattering to the far field and rigorously mapping the near field.
References in corpus (5)
- Theory of extraordinary optical transmission through subwavelength hole arrays
- Transmission resonances on metallic gratings with very narrow slits
- Terahertz surface plasmon polariton propagation and focusing on periodically corrugated metal wires
- Field-driven femtosecond magnetization dynamics induced by ultrastrong coupling to THz transients
- Skirting Terahertz Waves in a Photo-excited Nanoslit Structure
Cited by in corpus (5)
- Enhancement of Terahertz Photoconductive Antennas and Photomixers Operation by Optical Nanoantennas
- Terahertz-driven Luminescence and Colossal Stark Effect in CdSe:CdS Colloidal Quantum Dots
- Air nonlinear dynamics initiated by ultra-intense lambda-cubic THz pulses
- Temporal and Spectral Shaping of Broadband THz Pulses in a Photoexcited Semiconductor
- Skirting Terahertz Waves in a Photo-excited Nanoslit Structure