Higher-order diffraction suppression of free-standing quasiperiodic nanohole arrays in the x-ray region

Nanohole array is particularly advantageous for light field manipulation. Here, we report a strategy to mimic the function of x-ray transmission gratings with free-standing quasiperiodic nanohole array. An analytical description is developed to reveal the physical mechanism of the free-standing quas...

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Veröffentlicht in:Applied physics letters 2017-01, Vol.110 (4)
Hauptverfasser: Li, Hailiang, Shi, Lina, Wei, Lai, Xie, Changqing, Cao, Leifeng
Format: Artikel
Sprache:eng
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Zusammenfassung:Nanohole array is particularly advantageous for light field manipulation. Here, we report a strategy to mimic the function of x-ray transmission gratings with free-standing quasiperiodic nanohole array. An analytical description is developed to reveal the physical mechanism of the free-standing quasiperiodic nanohole array that reduces higher-order contamination, and is verified by rigorous numerical simulations. An x-ray free-standing quasiperiodic nanohole array consisting of 1.6 × 109 nanoholes over an active area of 10 mm × 10 mm was fabricated. Experimental results of near-complete suppression of higher-order diffractions were obtained in the x-ray region. The capability to separate multiple overlapping orders makes this kind of nanohole array attractive for future development and application of high-resolution spectroscopy.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4974940