Abstract
Propagation of 0.5 THz single cycle pulses inside an aperture-type near-field probe is studied. The E-field amplitude attenuation is experimentally measured at various distances from the aperture. Numerical simulations based on a two-dimensional model illustrate the pulse waveform transformation and the spectral blueshift, which is experimentally observed. The study shows that the sensitivity of such a near-field probe can be improved by more than a factor of 10 by decreasing the aperture-to-detector separation without reduction of the spatial resolution.
Original language | English (US) |
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Pages (from-to) | 252-254 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 78 |
Issue number | 2 |
DOIs | |
State | Published - Jan 8 2001 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)