| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Investigation of Ag2O Thermal Decomposition by Terahertz Time-Domain Spectroscopy |
| CHEN Hua1,2, WANG Li2 |
| 1Department of Physics, Southeast University, Nanjing 2111892Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100190 |
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| Cite this article: |
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CHEN Hua, WANG Li 2009 Chin. Phys. Lett. 26 054209 |
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Abstract Application of terahertz time-domain spectroscopy is demonstrated to study the process of Ag2O thermal decomposition. In the process of decomposition, the time-resolved signals are characterized by broad oscillations and decreased intensity, and THz pulse essentially contains two broad spectral components: one centered at around 0.35THz and a band with a maximum at around 0.81THz shift to 0.71THz. Optical absorption spectra of different specimens are studied in the frequency range 0.3-1.4THz and the data are analyzed by the relevant theory of the effective medium approach combined with the Drude-Lorentz model. The analysis suggests that optical properties stem from the Drude term for the metallic phase and the Lorentz term for the insulator phase in the complex system.
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| Keywords:
42.25.Bs
81.40.Tv
78.20.-e
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Received: 28 November 2008
Published: 23 April 2009
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| PACS: |
42.25.Bs
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(Wave propagation, transmission and absorption)
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81.40.Tv
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(Optical and dielectric properties related to treatment conditions)
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78.20.-e
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(Optical properties of bulk materials and thin films)
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