Work

Novel approaches in pulsed laser deposition using ultrashort GHz burst pulses

Year: 2025

Type: article

Abstract: Pulsed Laser Deposition (PLD) is a versatile technique for fabricating high-quality thin films with stoichiometric transfer of complex materials. However, conventional PLD often suffers from limited coating homogeneity, particulate formation, and restrictions in coating complex geometries. In this work, we demonstrate for the first time the feasibility of PLD using ultrashort GHz burst pulses. The deposition experiments reveal a distinct angular distribution of the film thickness with a gradient towards higher propagation angles of the ablated species. Rotationally ring like coatings were obtained on substrates arranged around the plume axis. Scanning electron microscopy shows that the number and size of the particulates strongly depend on the applied burst energy and the number of GHz pulses per burst. These findings provide first insight into the process to structure relationship of this deposition approach. The study highlights its potential for enabling coatings on inner surfaces and complex geometries, thus opening perspectives beyond the capabilities of conventional PLD.

Source: Surface and Coatings Technology

DOI: 10.1016/j.surfcoat.2025.132978

Authors: Daniel Metzner, Philipp Rebentrost, Thomas Lampke, Steffen Weißmantel

Institutions: Hochschule Mittweida, Chemnitz University of Technology

Language: English

Topic: Laser Material Processing Techniques

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,880

Funder: Europäischer Sozialfonds