Focusing light with a reflection photon sieve
نویسندگان
چکیده
منابع مشابه
Large optical photon sieve.
A photon sieve with 10(7) holes has been constructed for operation at optical wavelengths. Details of the design, fabrication, and performance of this device are presented. The 1 m focal-length, 0.1 m diameter element is diffraction limited over a significant bandwidth and has a moderate field of view.
متن کاملFocusing analysis of the pinhole photon sieve: individual far-field model.
Recently, a new class of diffractive optical element called a photon sieve, which consists of a great number of pinholes, was developed for the focusing and imaging of soft x rays. In terms of the closed-form formula for the far field of individual pinholes and the linear superposition principle, we present a simple yet accurate analytical model for the focusing of the pinhole photon sieve. Thi...
متن کاملBroadband antihole photon sieve telescope.
A broadband-corrected optical telescope has been constructed from a photon sieve with five million holes. Through careful optimization of hole size, this "antihole" sieve has holes centered on the dark underlying Fresnel zones. The diffraction-limited performance of a 1 m focal-length, f/10 element is demonstrated with a view toward constructing large lightweight telescopes for space applications.
متن کاملa comparison of teachers and supervisors, with respect to teacher efficacy and reflection
supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...
15 صفحه اولFocusing a helium atom beam using a quantum-reflection mirror
We demonstrate one-dimensional (1D) focusing of a thermal helium atom beam by quantum reflection from a cylindrical concave quartz mirror at near-grazing incidence. The smallest width of the focus achieved is 1.8μm, essentially limited by spherical aberration. The various effects that contribute to the finite focal width have been investigated. We propose to apply near-grazing reflection from t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Letters
سال: 2011
ISSN: 0146-9592,1539-4794
DOI: 10.1364/ol.36.002405