| Autor: |
Qing, Sun, Yu-Qiang, Deng, Shi-Ying, Cao, Jing, Yu, Feng, Liu, Chang-Lei, Wang, Qi-Rong, Xing |
| Rok vydání: |
2011 |
| Zdroj: |
Guang pu xue yu guang pu fen xi = Guang pu. 30(12) |
| ISSN: |
1000-0593 |
| Popis: |
Conventional Fourier-transform mixes the frequency components of the entire temporal terahertz waveform in one frequency domain; therefore, it cannot distinguish the terahertz frequency in the main pulse from the noise frequency in the pulse tail. Thus traditional Fourier-transform produces inconsistent spectra from different scanning lengths of terahertz pulse. And the interference spectrum appears when the THz echo pulse is recorded. The authors applied wavelet-transform and removed the inconsistent spectra and the interference spectra. Wavelet-transform technique exhibited the local frequency of THz in different time locations. This technique would find applications in THz time-resolved spectroscopy. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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