Fabrication of nanostructures with complex spatial frequency via laser-focused atomic deposition

In this paper we report on experiments generating complex one-dimensional nanoscale patterns with the laser-focused atomic deposition technique. A beam of collimated chromium atoms intersect with an exact on-resonant laser standing wave at S-7(3) -> P-7(4)0 transition of Cr-52. With the usage of proper laser intensity and reflectivity of the retroreflecting mirror, which are used to form the standing wave, nanolines with complex spatial frequencies (both lambda/2 and lambda/4) can be fabricated in one-step deposition. The proportion of the two structures could be 1:1. (C) 2019 The Japan Society of Applied Physics