Investigation of Laser-Induced Periodic Surface Structures Using Synthetic Optical Holography

Neutsch, K. and Gurevich, E.L. and Hofmann, M.R. and Gerhardt, N.C.

Volume: 12 Pages:
DOI: 10.3390/nano12030505
Published: 2022

In this paper, the investigation of laser-induced periodic surface structures (LIPSSs) on a polycrystalline diamond substrate using synthetic optical holography (SOH) is demonstrated. While many techniques for LIPSS detection operate with sample contact and/or require preparation or processing of the sample, this novel technique operates entirely non-invasively without any processing of or contact with the LIPSS sample at all. The setup provides holographic amplitude and phase images of the investigated sample with confocally enhanced and diffraction-limited lateral resolution, as well as three-dimensional surface topography images of the periodic structures via phase reconstruction with one single-layer scan only. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

« back