אורן כהן

סגל אקדמי

דוא"ל: oren.cohen@physics.technion.ac.il

נושא מחקר: אופטיקה לא-לינארית

אתר בית:  https://oren.net.technion.ac.il/

Research Interests & Publications:  

Fields of research:

• High laser-field physics


• Ultrafast optics & attosecond science


• Super-resolution imaging

Ongoing research:

• We have been developing sources of extreme ultraviolet pulses with attosecond to femtosecond duration (femto and atto correspond to 10^-15 and 10^-18, respectively) and with fully controllable polarization. We employ these unique sources for exploring ultrafast dynamics in magnetism, chirality, and of charge and spin currents in atoms, molecules and solids.


• Progress in super-resolution microscopy (the topic of the 2014 Nobel Prize in chemistry) has been pushing forward many fields in science, medicine and technology. While proliferation of super-resolution techniques have been established, they all suffer from relatively long acquisition time (~0.1 seconds) that also limits the imaging temporal resolution. We develop ultrafast super-resolution microscopy!


• We discovered, explore and employ long-lived optically-induced atmospheric waveguides.