| Autor: |
Dmitry Roshchupkin, Evgeny Emelin, Luc Ortega, Olga Plotitcyna, S. Sakharov, D. V. Irzhak, O. A. Buzanov |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC). |
| Popis: |
X-ray diffraction on the La3Ga5SiO14 (LGS) crystal modulated by surface (SAW) and pseudo-surface acoustic waves (PSAW) with wavelength of Λ=6 μm was studied using a double axis X-ray diffractometer at the BESSY II synchrotron radiation source. The propagation of SAW and PSAW leads to sinusoidal modulation of the crystal lattice and gives rise to diffraction satellites on the rocking curve, with the intensity and angular divergence between the diffraction satellites depending on the wavelength and amplitude of the crystal lattice acoustic modulation. The analysis of diffraction spectra enables the determination of the amplitude and acoustic wavelengths, and power flow angles of acoustic energy propagation. The investigation of acoustic wave fields showed that PSAW is a flowing back wave. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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