Atomic diffraction by light gratings with very short wavelengths

TL;DR

This paper investigates atomic diffraction caused by light gratings with wavelengths comparable to atomic sizes, deriving testable diffraction patterns and highlighting fundamental implications for light-matter interactions at atomic scales.

Contribution

It introduces a theoretical analysis of atomic diffraction by ultra-short wavelength light gratings, a novel regime where grating periodicity matches atomic dimensions.

Findings

Derived diffraction patterns for atomic-scale gratings

Identified fundamental differences from traditional diffraction regimes

Proposed experimental tests for the atomic Kapitza-Dirac effect

Abstract

Lasers with wavelengths of the order of the atomic size are becoming available. We explore the behavior of light-matter interactions in this emergent field by considering the atomic Kapitza-Dirac effect. We derive the diffraction patterns, which are in principle experimentally testable. From a fundamental point of view, our proposal provides an example of system where the periodicity of the diffraction grating is comparable to the size of the diffracted object.