Inclined-incidence hard-X-ray resonator with ultrahigh efficiency and resolution.
Opt Express
; 23(8): 9994-10001, 2015 Apr 20.
Article
in En
| MEDLINE
| ID: mdl-25969040
ABSTRACT
We report a high-efficiency hard-X-ray resonator with inclined-incidence geometry. A beam incident at 36.87° with respect to [3 1 0] excites Bragg back diffraction along (12 4 0) at 14.4388 keV for resonance in a Si-based resonator to produce intense resonance fringes. The experimental results showed the visibility enhanced by nearly 30 times compared with normal incidence. Also numerical calculations of the inclined-incidence resonator demonstrate ultrahigh efficiency and extremely narrow resolving power (sub-meV) with low background. This geometry surpasses the intrinsic limits of normal-incidence crystal-based resonators and enables ultrahigh-resolution X-ray optics for X-ray diffraction, spectroscopy, and imaging applications.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Incidence_studies
/
Risk_factors_studies
Language:
En
Journal:
Opt Express
Journal subject:
OFTALMOLOGIA
Year:
2015
Document type:
Article