Work

Thermal Limitations in Ultrafast Laser Direct Writings in Dielectric Solids

Year: 2025

Type: article

Abstract: In the context of an ultrafast laser interacting with solids, temperature plays a special role in the transformation processes. Some of these processes can be thermally activated, while others can be either solely driven or constrained by temperature-such as refractive index change (fictive temperature), nanopore erasure, micro-bubble formation, and phase transition-like crystallization. The objective of this paper is to use a recently developed analytic approximation to understand the limitations imposed by the spatial temperature distribution and its evolution over the writing time, based on the key laser parameter combinations, and subsequently determine the boundary conditions of these parameters.

Source: Micromachines

DOI: 10.3390/mi16090970

Authors: Bertrand Poumellec, Ruyue Que

Institutions: Centre National de la Recherche Scientifique, Université Paris-Saclay, Institut de Chimie Moléculaire et des Matériaux d'Orsay

Language: English

Topic: Laser Material Processing Techniques

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,534

Funders: Agence Nationale de la Recherche, China Scholarship Council