TRCL-Session at the Berlin Photonic Days#
The Berlin Photonics Week from October 7-10 will host a dedicated session on time-resolved cathodoluminescence on October 8 as part of the Photonic Days and a tour to PDI with visits of different labs, including the ZALKAL lab, as part of the Photonic Travel Days on October 10.
The dedicated TRCL session will bring together European experts to present latest applications, discuss scientific results and evaluate recent developments in measurement systems. Cathodoluminescence spectroscopy in a pulsed scanning or transmission electron microscope allows to resolve the emission characteristics of semiconductors as well as of photonic structures at the nanoscale with high spectral and temporal resolution. Such measurements can for example help to elucidate the role of structural and point defects in semiconductor hetero- and nanostructures on carrier recombination and transport, assess the compositional homogeneity of ternary alloys or characterize potential quantum emitters.
During the institute visit, participants will receive an overview of the institute’s activities and visit different laboratories of the institute. Namely, the large molecular beam epitaxy facility, as well as two advanced electron microscopy labs: the “Berlin Application Laboratory Electron Tomography (BALET)” and the “Application Laboratory Time-resolved Cathodoluminescence Spectroscopy (ZALKAL)”.
Program of the TRCL-Session on Oct. 9 2025:
10:00 - 10:20 “Time-resolved Cathodoluminescence: Developments, Challenges, and Outlook.”, Dr. Toon Coenen, Delmic B.V., Delft (Netherlands)
10:20 - 10:40 “Analyzing defects in wide-gap semiconductors with time-resolved cathodoluminescence spectroscopy “, Prof. Tobias Voss, Technische Universität Braunschweig (Germany)
10:40 - 11:00 “The UV-C challenge: time-resolved spectroscopy of (Al,Ga)N“, Dr. Kagiso Loeto, Paul-Drude-Institut für Festkörperelektronik (Germany)
11:00 - 11:20 “Stacking fault luminescence in AlN“, Corentin Guérin, Institut Néel, Grenoble (France)
11:20 - 11:40 “ Time and polarisation-resolved cathodoluminescence of zb InGaN single quantum well samples with varying SF density“, Xiuyuan Xu, University of Cambridge (UK)
11:40 - 12:00 “Pump-probe cathodoluminescence of resonant silicon nanospheres for nanoscale heat flow and temperature measurements”, Dr. Saskia Fiedler, AMOLF, Amsterdam (Netherlands)
