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Updated: Aug 17, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
X-ray resonance in crystal cavities: realization of Fabry-Perot resonator for hard x rays
S-L Chang1, Yu P Stetsko, M-T Tang
1Department of Physics, National Tsing Hua University (NTHU), Hsinchu, Taiwan 300, Republic of China. slchang@phys.nthu.edu.tw
Abstract:
X-ray back diffraction from monolithic two silicon crystal plates of 25-150 microm thickness and a 40-150 microm gap using synchrotron radiation of energy resolution DeltaE = 0.36 meV at 14.4388 keV clearly show resonance fringes inside the energy gap and the total-reflection range for the (12 4 0) reflection. This cavity resonance results from the coherent interaction between the x-ray wave fields generated by the two plates with a gap smaller than the x-ray coherence length. This finding opens up new opportunities for high-resolution and phase-contrast x-ray studies, and may lead to new developments in x-ray optics.
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