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          15:00 | 
          HL 21.1 | 
          
            
            
              
                Dynamics of exciton-polariton emission in CuI — •E. Krüger, M. Bar, S. Blaurock, L. Trefflich, R. Hildebrandt, A. Müller, O. Herrfurth, G. Benndorf, H. von Wenckstern, H. Krautscheid, M. Grundmann, and C. Sturm
              
            
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          15:15 | 
          HL 21.2 | 
          
            
            
              
                Coherent phonon oscillations and transient critical-point parameters in femtosecond pump-probe ellipsometry spectra — •S Zollner, C Emminger, S Espinoza, S Richter, M Rebarz, O Herrfurth, M Zahradnik, R Schmidt-Grund, and J Andreasson
              
            
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          15:30 | 
          HL 21.3 | 
          
            
            
              
                Temperature dependence of the mid-infrared dielectric function of InSb from 80 to 800 K — Melissa Rivero Arias, Cesy Zamarripa, Jaden Love, Carola Emminger, and •Stefan Zollner
              
            
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          15:45 | 
          HL 21.4 | 
          
            
            
              
                Ultra-fast change of the absorption onset in undoped cubic GaN — •Elias Baron, Martin Feneberg, Rüdiger Goldhahn, Michael Deppe, Donat J. As, Shirly Espinoza, and Martin Zahradník
              
            
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          16:00 | 
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              15 min. break
            
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          16:15 | 
          HL 21.5 | 
          
            
            
              
                Strain-induced bandgap transition in III-V semiconductors — •Badal Mondal and Ralf Tonner-Zech
              
            
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          16:30 | 
          HL 21.6 | 
          
            
            
              
                Probing free carrier and exciton dynamics in bulk gallium selenide with two-dimensional electronic spectroscopy — •Jonas Allerbeck, Thomas Deckert, Laurens Spitzner, and Daniele Brida
              
            
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          16:45 | 
          HL 21.7 | 
          
            
            
              
                Multistable, co- and counterflowing currents of polariton condensates in concentric ring-shaped and elliptical potentials — •Franziska Barkhausen, Matthias Pukrop, Xuekai Ma, and Stefan Schumacher
              
            
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          17:00 | 
          HL 21.8 | 
          
            
            
              
                Optical properties of transition metal oxide perovskites by the Bethe-Salpeter equation — •Lorenzo Varrassi, Peitao Liu, Zeynep Ergönenc Yavas, Menno Bokdam, Georg Kresse, and Cesare Franchini
              
            
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          17:15 | 
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          17:30 | 
          HL 21.9 | 
          
            
            
              
                Dynamics of phase defects trapped in optically imprinted or- bits in dissipative binary polariton condensates — •Jan Wingenbach, Matthias Pukrop, Stefan Schumacher, and Xuekai Ma
              
            
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          17:45 | 
          HL 21.10 | 
          
            
            
              
                Optimization of Silicon Nanoantenna for Optical Phased Arrays — •Andreas Strauch, Henna Farheen, Viktor Myroshnychenko, and Jens Förstner
              
            
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          18:00 | 
          HL 21.11 | 
          
            
            
              
                Spatially Resolved Dynamics of Intra 3d Luminescence of Co in ZnO Nanowires Revealed by Nanoscale X-ray Analysis — •Christian Plass, Valentina Bonino, Maurizio Ritzer, Lukas Jäger, Jaime Segura-Ruiz, Gema Martinez-Criado, and Carsten Ronning
              
            
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          18:15 | 
          HL 21.12 | 
          
            
            
              
                Fröhlich polarons in cubic materials — •B. Guster, P.M.M.C. Melo, B.A.A. Martin, V. Brousseau-Couture, J.C. de Abreu, A. Miglio, M. Giantomassi, M. Côté, J.M. Frost, M.J. Verstraete, and X. Gonze
              
            
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