Generation of axial line-focus using a binary-phase Fresnel zone plate | Zendy

Li Yu-Tong | Zendy; Jie Zhang | Zendy; Xin Lu | Zendy; Zhan Jin | Zendy; D. Pepler | Zendy; C. Danson | Zendy

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Generation of axial line-focus using a binary-phase Fresnel zone plate

Author(s) -

Li Yu-Tong,

Jie Zhang,

Xin Lu,

Zhan Jin,

D. Pepler,

C. Danson

Publication year - 2005

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.54.2030

Subject(s) - zone plate , optics , focus (optics) , line (geometry) , femtosecond , materials science , phase (matter) , fresnel zone , fresnel zone antenna , fresnel number , laser , fresnel lens , binary number , lens (geology) , physics , geometry , diffraction , telecommunications , mathematics , quantum mechanics , smart antenna , arithmetic , dipole antenna , computer science , antenna (radio)

In this paper, a uniform axial line_focus, which is important for the x_ray lase r amplification pumped by picosecond and femtosecond laser pulses, is generated by a binary_phase Fresnel zone plate. The performances of the plate are tested u sing a ultrashort_pulse laser. The results show that the length and the width of the line_focus are 5mm and 100μm respectively, when coupled with a 125mm f ocal length lens. The ratio of the peak intensity at the center of the line focu s to the intensity outside around the line focus is 7:1

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