Strength tuning of multiple waves in crystals.
In this work, the linear polarization of synchrotron radiation is explored as a tuning key for the strength of the simultaneously diffracted X-ray waves in crystals. The relative strength of the waves has been defined by the reflectivities of the Bragg reflections involved in each multiple-diffraction case and it has limited the applicability of the multiple-diffraction phenomenon. With a proper choice of the wavelength and the polarization direction of the incident synchrotron radiation, it is demonstrated how the intensity ratios of the simultaneously diffracted beams can be drastically changed.
Instituto de Física, USP, CP 66318, 05508-900 São Paulo, SP, Brazil. morelhao@if.usp.br
Morelhão SL
Avanci LH