Hard x-ray microscopy with Fresnel zone plates reaches 40 nm Rayleigh resolution.

By Y. Chu, J. Yi, F. Carlo, Q. Shen, Wah‐Keat Lee, Hsin-jay Wu, Cheng-Liang Wang, Jiajun Wang, C. Liu, Ch Wang and 10 more. 2008

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Substantial improvements in the nanofabrication and characteristics of gold Fresnel zone plates yielded unprecedented resolution levels in hard-x-ray microscopy. Tests performed on a variety of specimens with 8–10keV photons demonstrated a first-order lateral resolution below 40nm based on the Rayleigh criterion. Combined with the use of a phase contrast technique, this makes it possible to view features in the 30nm range; good-quality images can be obtained at video rate, down to 50ms∕frame. The important repercussions on materials science, nanotechnology, and the life sciences are discussed.

Subfields: Radiation, Structural Biology

View Paper: https://www.semanticscholar.org/paper/b7ba745266413aabbc9c4a3e273d0782676ccb49