A5078320226- Mechanical and Optical Resonators
- Terahertz technology and applications
- Advanced Fiber Laser Technologies
- Thermography and Photoacoustic Techniques
University of Silesia in Katowice
2020
Centre National de la Recherche Scientifique
2020
Institut des Molécules et Matériaux du Mans
2020
Le Mans Université
2020
We report the generation of coherent acoustic phonons in materials with terahertz ultrashort pulses. This is demonstrated metals and topological insulators by exciting an eigenmode nanometric-sized thin films. The efficiency coupling quadratic electric field strength within range investigation. Owing to a quantitative comparison between near-infrared pulse excitations, we show that process phonon radiation mainly driven thermoelastic stress. While for light excitation lattice temperature...
We report for the first time generation of coherent acoustic phonons in materials with terahertz ultrashort pulses. This is demonstrated metals and topological insulators by exciting eigenmode nanometric sized thin films.