Publications by authors named "Helen D Roshchupkina"

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X-ray topography analysis of acoustic wave fields in the SAW-resonator structures.

IEEE Trans Ultrason Ferroelectr Freq Control 2005 Nov;52(11):2081-7

Institute of Microelectronics Technology and High Purity Materials, Russian Academy of Sciences, Laboratory of X-ray Acoustooptics, Chernogolovka, Russian Federation.

The formation of fields of standing surface acoustic waves (SAW) in LiNbO3 and La3Ga5SiO14 (LGS) crystals was studied by high-resolution topography method on a laboratory X-ray source. The fields of standing SAW were formed using SAW-resonator structures consisting of interdigital transducer (IDT) and reflecting gratings. The SAW amplitudes and power flow angles were measured by X-ray topography, diffraction in acoustic beam was visualized, and the SAW interaction with the crystal structure defects was studied.
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http://dx.doi.org/10.1109/tuffc.2005.1561678DOI Listing
November 2005