In the research of elementary particles conducted at the European Organization for Nuclear Research (CERN), microstructured gas detectors are required, the elements of which are made of plates with small-sized hole arrays. Selective laser etching is one of the promising technologies for the realization of such microstructures, when quartz glass becomes soluble in the corresponding etchant after being illuminated with an ultra-short pulse laser. During this internship, we aim to identify the most effective strategies for exposing glass with a femtosecond laser and selective etching conditions, which will ensure the hole geometry required for gaseous electron multiplier detectors and be characterized by a rational production time. The goal of the internship is to contribute to the development of microstructured gas detectors by selecting conditions for the selective laser etching of glass to form three-dimensional micro-hole arrays.
Project results:
The main tasks include the selection and investigation of strategies for exposing glass with a femtosecond laser to form cylindrical microstructures; investigation of the influence of anisotropic microchannel etching conditions on their dimensions along the structures; selection of a strategy for forming arrays of microcylindrical holes; and formation of a microstructured gas detector element of the appropriate geometry.
Period of project implementation: 2025-10-01 - 2026-04-30
Project coordinator: Kaunas University of Technology
