Development of a Tabletop Setup for the Transient Current Technique Using Two-Photon Absorption in Silicon Particle Detectors

The transient current technique (TCT) is widely used in the field of silicon particle detector development. So far, only laser wavelengths with a photon energy larger than or similar to bandgap (single absorption) were used. Recently, measurements using two-photon absorption (TPA) for testing have been carried out first time. Excess carriers are created at focal point beam and thus resolution all three spatial directions could be achieved. perpendicular incident increased roughly by factor 10. First this new method performed Singular Laser Facility Universidad del País Vasco (UPV)/Euskal Herriko Unibertzitatea (EHU). Following initial success method, compact TPA-TCT setup under A description system presented article.