Mesa structured photoconductive antennas for 1.5 µm: All-fibre THz-TDS spectroscopy beyond 4 THz

Mesa structured photoconductive antennas for 1.5 µm: All-fibre THz-TDS spectroscopy beyond 4 THz

Photoconductive antennas (PCAs) based on InGaAs/InAlAs for operation at 1.5 μm 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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Bibliographische Detailangaben
Hauptverfasser: Dietz, R J B, Roehle, H, Stanze, D, Montanaro, V, Hensel, H J, Schell, M, Sartorius, B
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Absorption
Antenna measurements
Antennas
Indium gallium arsenide
Optical fibers
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Beschreibung
Zusammenfassung:Photoconductive antennas (PCAs) based on InGaAs/InAlAs for operation at 1.5 μm 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.
ISSN:2162-2027
DOI:10.1109/ICIMW.2010.5612633