| Autor: |
R. Gusten, Axel Roggenbuck, Joachim Hemberger, Stephanie Schindler, Markus Grüninger, Iván Cámara Mayorga, Anselm Deninger, Holger Schmitz |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
2009 34th International Conference on Infrared, Millimeter, and Terahertz Waves. |
| Popis: |
We developed an all-fiber-based continuous-wave terahertz spectrometer based on optoelectronic signal generation and detection. The spectrometer has a very high spectral resolution in the MHz range over the whole tuning range from 50 GHz to 1750 GHz. The signal-to-noise ratio is ≈ 80 dB at 100 GHz and still 50 dB at 1 THz, using a lock-in time constant of 300 ms. We applied the spectrometer to absorption measurements of a-lactose monohydrate and demonstrate the suitability of the instrument to determine the area density of paper samples. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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