Author:
Bucher Tomer,Nahari Harel,Sheinfux Hanan Herzig,Ruimy Ron,Niedermayr Arthur,Dahan Raphael,Yan Qinghui,Adiv Yuval,Yannai Michael,Chen Jialin,Kurman Yaniv,Park Sang Tae,Masiel Daniel J.,Janzen Eli,Edgar James H.,Carbone Fabrizio,Bartal Guy,Tsesses Shai,Koppens Frank H.L.,Vanacore Giovanni Maria,Kaminer Ido
Abstract
We present free-electron imaging of sub-cycle spatio-temporal dynamics of 2D polariton wavepackets, demonstrating the first simultaneous time-, space-, and phase-resolved measurement of such phenomena, and resolving their novel features like vortex-anti-vortex singularities for record-low intensities.