Ridged atomic mirrors and atomic nanoscope
Abstract
Recent results on the reflection of waves from ridged mirrors are discussed. Numerical calculations, analytical estimates and the direct measurements of coefficient of specular reflection of atomic waves from solidstate mirrors are combined. The reflectivity is approximated as an elementary function of period L of ridges, their width ell, wavenumber K, grazing angle θ and effective depth w of the van der Waals potential. In a special case L = ell, the fit reproduces the reflectivity of flat surfaces. Our approximation allows us to optimize the L at given ell and estimate the maximum performance of a ridged mirror. Such a mirror is suggested as a focusing element for the nanoscale imaging system.
 Publication:

Journal of Physics B Atomic Molecular Physics
 Pub Date:
 April 2006
 DOI:
 10.1088/09534075/39/7/005
 Bibcode:
 2006JPhB...39.1605K