@article{6959,
  author = {A. J. L. Adam and J. M. Brok and M. A. Seo and K. J. Ahn and D. S. Kim and J. H. Kang and Q. H. Park and M. Nagel and P. C. M. Planken},
  title = {Advanced terahertz electric near-field measurements at sub-wavelength diameter metallic apertures},
  abstract = {Using terahertz-light excitation, we have measured with sub-wavelength spatial, and sub-cycle temporal resolution the time- and frequency-dependent electric-field and surface-charge density in the vicinity of small metallic holes. In addition to a singularity like concentration of the electric field near the hole edges, we observe, that holes can act as differential operators whose near-field output is the time-derivative of the incident electric field. Our results confirm the well-known predictions made by Bouwkamp, Philips Res. Rep. 5, 321-332 (1950), and reveal, with unprecedented detail, what physically happens when light passes through a small hole. (C) 2008 Optical Society of America.},
  year = {2008},
  journal = {Optics Express},
  volume = {16},
  number = {10},
  pages = {7407-7417},
  month = {May},
  isbn = {1094-4087},
  url = {<Go to ISI>://000256469800066 },
  note = {ISI Document Delivery No.: 309OJTimes Cited: 1Cited Reference Count: 31},
  language = {English},
}