Speaker
Sebastian Pape
(Technische Universitaet Dortmund (DE))
Description
The Two Photon Absorption – Transient Current Technique (TPA-TCT) setup at CERN uses fs pulse infrared fiber lasers, with a wavelength of 1550nm. Highly focusing optics are used to mainly generate excess charge carriers in a small volume (approximately 1µm × 1µm × 20µm) around the focal point of the laser beam, which enables a resolution in all three spatial directions. The setup was used to study plasma effects in a PIN sensor, and the gain reduction mechanism in a 300µm thick LGAD sensor. Furthermore, the impact of diffusion on the gain reduction mechanism was modeled and employed towards the data.
Author
Sebastian Pape
(Technische Universitaet Dortmund (DE))
Co-authors
Cristian Quintana San Emeterio
(Universidad de Cantabria and CSIC (ES))
Esteban Curras Rivera
(CERN)
Francisco Rogelio Palomo Pinto
(Universidad de Sevilla (ES))
Ivan Vila Alvarez
(Instituto de Física de Cantabria (CSIC-UC))
Marcos Fernandez Garcia
(Universidad de Cantabria and CSIC (ES))
Michael Moll
(CERN)
Raul Montero
