Applications of Parametric-Down Conversion of X rays
Pmetric-down conversion (PDC) has been studied extensively at optical wavelengths. The extension of this effect into X-ray wavelengths offers many advantages due to the high spatial resolution and the extremely low noise of commercial X-ray detectors. My talk comprises of two such applications:
1. Parametric-Down Conversion of X rays into the Optical Regime
Nonlinear interactions of X-rays and optical radiations can provide insight into the microscopic structure of chemical bonds and the valence electron density of crystals and into light-matter interactions at the atomic-scale resolution . We observe parametrically down converted X-ray signal photons that correspond to idler photons at optical wavelengths for the first time . The results demonstrate a new method for probing valence-electron charges and microscopic optical responses of crystals at the atomic-scale resolution.
2. Ghost imaging of X ray paired photons
PDC is one of the major sources for the generation of non-classical states of light. This type of radiation is extensively used to study numerous quantum phenomena at optical wavelengths. Despite the potential for research with X-rays, no application of X-ray PDC generated pairs has been reported. We observe ghost imaging by using parametrically down-converted X-ray photon pairs . We reconstruct the images of slits with nominally zero background levels. Our procedure can lead to the observations of many quantum phenomena at X-ray wavelengths.
 I. Freund and B. F. Levine, Phys. Rev. Lett. 25, 1241 (1970).
 A. Schori, C. Bömer, D. Borodin, S. P. Collins, B. Detlefs, M. Moretti Sala, S. Yudovich, and S. Shwartz, Phys. Rev. Lett., 119, 253902 (2017).
 A. Schori, D. Borodin, K. Tamasaku, and S. Shwartz, Phys. Rev. Lett., submitted (2018)
תאריך עדכון אחרון : 08/03/2018