Oren Cohen
Professor, Head of Physics Program
Office: A515, South Campus
Research Group Website: Ultrafast Optics Group
Professor Oren Cohen received his PhD from Technion, on research done in the group of Mordechai Segev, then moved to post-doc position in JILA (joint institute of the University of Colorado at Boulder and the National Institute of Standards and Technology), to work with Profs. Margaret Murnane and Henry Kapteyn, and in 2008 returned to the Department of Physics at the Technion as a faculty member.
Prof. Cohen’s current research (theoretical and experimental), include symmetries and selection rules in nonlinear optics and their utilization for ultrafast spectroscopy, e.g. diagnostics of chirality, generation and applications of high harmonic generation with circular polarization, developing a microscope for high-resolution ultra high-speed imaging of non-repetitive phenomena, diagnostics of ultrashort laser pulses, and strong-light quantum optics.
Prof. Cohen received several awards and fellowships, including the 2003 Israeli Physical Society outstanding Ph.D. student prize, a Rothschild post-doctoral fellowship (2005), Alon fellowship for outstanding young scientists in Israeli universities (2009-2011), Horev fellowship for Leaders in Science and Technology program at the Technion (2009-2011), the 2011 Wolf Foundation Krill Prize for Excellence in Scientific Research, the 2013 and 2020 Hershel Rich Technion Innovation award, the 2015 Henry Taub prize for academic excellence, and ERC consolidator grant (2019). In 2022 he was made a Fellow of the Optica Society (formally OSA, Optical Society of America) “For important contributions in nonlinear optics, including generation and applications of circularly-polarized high-order harmonics and observation of 3D spatio-temporal solitons “
When not chasing photons, Oren may be found in a basketball court or a chess board, playing for the Technion teams or with his four boys.
- Strong-light quantum optics
- High harmonic generation and attosecond science
- Selection rules in nonlinear optics
- Ultra high-speed imaging
Ariel Veler, Michael Birk, Caleb Dobias, Rodrigo Amezcua Correa, Pavel Sidorenko and Oren Cohen, Single-Shot Ptychographic Imaging of Non-Repetitive Ultrafast Events, Optics Letters, 49 178 (2024)
Matan Even Tzur and Oren Cohen, Motion of charged particles in bright squeezed vacuum, Light: Science & Applications,13, 41 (2024)
G. Lerner, O. Neufeld, L. Hareli, G. Shoulga, E. Bordo, A. Fleischer, D. Podolsky, A. Bahabad and O. Cohen, Multi-scale dynamical symmetries and selection rules in nonlinear optics, Science Advances, 9, eade0953 (2023)
Matan Even Tzur, Michael Birk, Alexey Gorlach, Michael Krueger, Ido Kaminer and Oren Cohen, Photon-statistics force in ultrafast electron dynamics, Nature Photonics, 17, 501 (2023). See also News & Views: Paraskevas Tzallas, Squeezed light effect, Nature Photonics 17, 463 (2023)
Matan Even-Tzur, Ofer Neufeld, Eliyahu Bordo, Avner Fleischer and Oren Cohen, Selection rules in symmetry broken systems by symmetries in synthetic dimensions, Nature Communications, 13, 1312 (2022)
O. Wengrowicz, O. Peleg, T. Zahavy, B. Loevsky, and O. Cohen, Deep neural networks in single-shot ptychography, Optics Express 28, 17511 (2020)
O. Neufeld and O. Cohen, Background-Free Measurement of Ring Currents by Symmetry Breaking High Harmonic Spectroscopy, Phys. Rev. Lett. 123, 103202 (2019). Highlighted as Editors’ suggestion
O. Wengrowicz, O. Peleg, B. Loevsky, B.K. Chen, G.I. Haham, S. Sainadh Undurti and O. Cohen, Experimental Time-Resolved Imaging by Multiplexed Ptychography, Optics Express 27, 24568 (2019)
O. Neufeld,* D. Ayuso,*P. Decleva, M. Ivanov, O. Smirnova and O. Cohen, ultrasensitive chiral spectroscopy by dynamical symmetry breaking in high harmonic generation, Phys. Rev. X 9, 031002 (2019)
O. Neufeld, D. Podolsky and O. Cohen, Floquet group theory and its application to selection rules in harmonic generation, Nature Communications, 10, 405 (2019)