Paper 14093-30
Paper 14093-30
Acoustically programmable liquid-metal mirror for high-power laser beam shaping
14 April 2026 • 12:00 - 12:15 CEST | Curie A (Niveau/Level 1)
Abstract
We present an ultrasound-tunable liquid-metal mirror for dynamic and damage-resistant beam shaping of high-intensity lasers. A reflective liquid surface is precisely deformed by using focused ultrasound waves, enabling real-time and programmable light control, including point-focused and ring-shaped beam patterns with tunable focal lengths (600 mm to 25 mm) and feature widths (120 μm to 20 μm). Validated for laser ablation of carbon films, this approach is a robust and reconfigurable method for tailored high-intensity laser materials processing.
Presenter
Blanca Mestre-Torà
Univ. de Barcelona (Spain)
Blanca Mestre-Torà is a PhD Student in Physics at the University of Barcelona, supervised by Prof. Martí Duocastella. Her research focuses on using ultrasound waves to control light for applications in biophotonics and advanced laser processing. She has carried out research stays at ETH Zurich and the University of Oulu, contributing to advances in optical imaging and sensing. Blanca holds a MSc in Photonics from Universitat Politècnica de Catalunya and a BSc in Physics from the University of Barcelona. Her work has been published in ACS Photonics, Scientific Reports, and Laser & Photonics Reviews.