Mesa structured photoconductive antennas for 1.5 µm: All-fibre THz-TDS spectroscopy beyond 4 THz
- Dietz, R.J.B.
- Roehle, H.
- Stanze, D.
- Montanaro, V.
- Hensel, H.J.
- Schell, M.
- Sartorius, B.
Publication date
January 2010
DOIAbstract
Photoconductive antennas (PCAs) based on InGaAs/InAlAs for operation at 1.5 m are improved by employing special structuring techniques, i.e. mesa etching. The detected THz amplitude is increased by a factor of over 27. The spectra show a significantly increased bandwidth exceeding 4 THz
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