Abstract
We describe the characteristics of a sensitive photoconductive detector that simultaneously measures orthogonal electric field components of electromagnetic transients with bandwidths up to 30 THz. The device consists of an As+ implanted GaAs photoconducting region at the centre of a pair of perpendicular bow-tie antennas. The performance is illustrated by studies of optical rectification in GaSe, retardation in a birefringent polymer film and THz emission from impulsively excited optical phonons in GaN.
| Original language | English |
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| Pages (from-to) | 7251-7257 |
| Number of pages | 7 |
| Journal | Optics Express |
| Volume | 16 |
| Issue number | 10 |
| Early online date | 4 May 2008 |
| DOIs | |
| Publication status | Published - 12 May 2008 |