Reflection of Waves from a Ridged Surface and the Zeno Effect

  title={Reflection of Waves from a Ridged Surface and the Zeno Effect},
  author={Dmitrii Kouznetsov and Hilmar Oberst},
  journal={Optical Review},
Reflection of waves from a ridged surface is interpreted as the spatial Zeno effect. This interpretation leads to a simple estimate for the coefficient of reflection. This estimate shows good agreement with experimental data of scattering of cold atoms from ridged surfaces. 

Figures from this paper

Ridged Mirrors as Experimental Evidence of the Spatial Zeno Effect
The specular reflection of waves from a periodic set of absorbers/scatterers is interpreted as a spatial version of the Zeno effect. This interpretation reveals the scaling law for the ridged atomic
Ridged atomic mirrors and atomic nanoscope
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
Wave propagation through a set of slits
Propagation of a wave through a set of identical slits is investigated using a scalar diffraction theory. The slits are aligned on a straight line with equal spacing. The asymptotic expansion of the
Guiding of Waves between Absorbing Walls
Guiding of waves between parallel absorbing walls is considered. The principal mode is constructed; its absorption is estimated. The agreement with previous results about reflection of waves from
Guiding of wave with opaque masks
  • M. Morinaga
  • Physics
    2018 3rd International Conference on Microwave and Photonics (ICMAP)
  • 2018
We discuss a waveguide composed of identical opaque masks such as slits and pinholes. The masks are aligned along a straight line with equal spacing. The eigenmode wave-functions of such waveguide
Guiding of Light with Pinholes
A new type of light waveguide using linearly aligned pinholes is presented. Results of basic experiments are compared with theoretical estimates calculated using continuous model. Since this
Guiding of light with pinholes
A new type of light waveguide using linearly aligned pinholes is presented. Results of basic experiments are compared with theoretical estimates calculated using continuous model. This model predicts
Quantum reflection of Bose-Einstein Condensates
Recent developments in atom optics have brought Bose-Einstein condensates within 1 μm of solid surfaces where the atom-surface interactions can no longer be ignored. At longrange, the atom-surface
Regular and chaotic dynamics of a matter-wave soliton near the atomic mirror
The dynamics of the soliton in a self-attractive Bose–Einstein condensate under the gravity are investigated. First, we apply the inverse scattering method, which gives rise to equation of motion for
Diffraction of a Bose-Einstein Condensate and the Path to an Atom Laser
In this thesis, we study the diffraction processes of a Bose-Einstein condensate of Rb atoms and outline our progress toward the realisation of an atom laser. The experiments are carried out with a


Scattering of atomic matter waves from ridged surfaces (11 pages)
Motivated by recent experiments that demonstrated a strongly enhanced reflection efficiency of atoms on microfabricated, gratinglike surface structures, we develop a detailed description of the
Scattering of He 4 Atoms Grazing the Liquid- He 4 Surface
Measurements of the scattering of /sup 4/He atoms grazing the surface of liquid /sup 4/He show that the reflectivity approaches unity as the perpendicular wave vector tends to zero, in agreement with
Fresnel diffraction mirror for an atomic wave.
A material-independent mirror for atomic waves that uses the Fresnel diffraction at an array of parallel ridges that depends only on the distance between the ridges, the wavelength, and the incident angle, but is insensitive to the material of the grating structure is demonstrated.
Giant Quantum Reflection of Neon Atoms from a Ridged Silicon Surface
The specular reflectivity of slow, metastable neon atoms from a silicon surface was found to increase markedly when the flat surface was replaced by a grating structure with parallel narrow ridges.
Scattering of atoms from liquid helium films and slabs
Abstract We report new results in describing the scattering of 4 He atoms off 4 He films and slabs. The description incorporates elastic and inelastic scattering off the host liquid. We have computed
Sufficiency conditions for quantum reflection
The mathematics of low-energy scattering from asymptotic power law potentials are examined to extract characteristic lengths of the scattering problem in the limit of low velocity. These are then
Reflection of thermal Cs atoms grazing a polished glass surface.
An experimental study shows that a large fraction of thermal Cs atoms are nearly specularly reflected by polished glass surfaces at grazing incidence, interesting in the context of projects aimed at storing cold alkali-metal atoms in boxes.
Experimental observation of quantum reflection far from threshold.
We present first experimental evidence for quantum reflection, originating exclusively from an attractive potential between an atom and a solid surface, at energies far from the threshold E(i)-->0.
Quantum reflection: Focusing of hydrogen atoms with a concave mirror.
Both zero-point fluctuations and thermal excitations turn out to be of importance in the study of the influence of the dynamic surface roughness on the reflection of the H atoms.
Specular reflection of very slow metastable neon atoms from a solid surface.
  • F. Shimizu
  • Materials Science, Medicine
    Physical review letters
  • 2001
An ultracold narrow atomic beam of metastable neon in the 1s3[(2s)(5)3p:1P0] state is used to study specular reflection of atoms from a solid surface at extremely slow incident velocity. The