Title :
Space-time modulation of an X-ray beam by ultrasonic superlattice
Author :
Roshchupkin, Dmitry V. ; Schelokov, Igor A. ; Tucoulou, Remi ; Brunel, Michel
Author_Institution :
Inst. of Microelectron. Technol. & High Purity Mater., Acad. of Sci., Chernogolovka, Russia
Abstract :
Space-time modulation of an X-ray beam is investigated by total external reflection on a YZ-cut of a LiNbO/sub 3/ crystal modulated by surface acoustic waves. It is shown that the X-ray diffraction is determined by the amplitude and the wavelength of the surface acoustic waves. Both experimental and theoretical studies have revealed the possibility of fabricating X-ray optical elements based on space-time modulation by controlling the wavelength and the pulse modulation of the surface acoustic waves. These experiments were carried out at CNRS (Grenoble, France) using a rotating copper anode.<>
Keywords :
X-ray diffractometers; X-ray optics; acousto-optical modulation; lithium compounds; pulse time modulation; superlattices; surface acoustic wave devices; ultrasonic devices; LiNbO/sub 3/; LiNbO/sub 3/ crystal; X-ray beam; X-ray diffraction; X-ray optical elements; pulse modulation; rotating copper anode; space-time modulation; surface acoustic waves; total external reflection; ultrasonic superlattice; Acoustic beams; Acoustic reflection; Acoustic waves; Optical modulation; Optical reflection; Optical surface waves; Pulse modulation; Superlattices; Surface acoustic waves; X-ray diffraction;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
