Mohammed Hassan

Physics Department, University of Arizona Office: +1-520-626-1435 1118 E 4th Street, PO Box 210081, Cell: +1-626-375-1387 Tucson, AZ. 85721-0081 e-mail: [email protected] website: www.hassan.lab.arizona.edu Professional History • Assistant professor of Physics (8/2017-present) University of Arizona Physics Department • Postdoctoral Scholar (9/2013-8/2017) California Institute of Technology, U.S.A. Physical Biology Center for Ultrafast Science and Technology (UST) Department of Chemistry & Chemical Engineering. Faculty Mentor: Prof. Ahmed Zewail • Postdoctoral Scholar (2/2013-9/2013) Max-Planck institute of Quantum Optics (MPQ), Munich, Germany Faculty Mentor: Prof. Dr. Ferenc Krausz and Dr. Eleftherios Goulielmakis Education • Ph.D. in Physics (7/2009-3/2013) Physics Department, Ludwig-Maximillian University of Munich (LMU), Germany Max-Planck institute of Quantum Optics (MPQ), Munich, Germany Ph.D. advisor: Prof. Dr. Ferenc Krausz and Dr. Eleftherios Goulielmakis Thesis Topic: “Synthesis and control of attosecond light transients”. • M.Sc. and Diploma in Laser Interactions with Matter (ranking #1) (9/2004-6/2009) National Institute of Laser Enhanced Science, Cairo University, Egypt. Thesis Topic: “Cancer treatment with naturally synthesized gold nanoparticles”. • B.Sc. in Chemistry (ranking top 5%) (9/1999-9/2013) Faculty of Science, Cairo University, Egypt. Honors and Awards • International Max-Planck Research School fellowship of Advanced Photon Sciences (IMPRS-APS), Germany. (2009-2012) • Maiman Student Paper Competition semi-finalist. (2012) • Egyptian Scientific Research Academy Master Fellowship for outstanding Graduate student in Science (ASRT-NILES), Egypt. (2004-2007). • Award of Excellence for Outstanding Undergraduate Students in Science. (2003) Main Scientific Accomplishments • Synthesis and tailoring of the first demonstrated optical attosecond (half cycle) pulses*, Nature 530, 66-70 (2016), which allows for the tracing and control of bound electrons dynamics in atomic systems, and the generation of extreme ultraviolet radiation from solids, Nature 521, 498 (2015), paving the way for developing extreme ultraviolet solid-state photonics. *The shortest pulse of visible light (Guinness World Records) • The generation and characterization of the shortest electron pulse to date in the electron microscopy, (30 fs) by the optical gating approach, Nature Photonics 11, 425–430 (2017). This long-anticipated technology in ultrafast electron microscopy constitutes not only the generation of the shortest electron pulse to date, but additionally — and in striking contrast to previous electron pulse compression techniques—sufficient intensity for the ultrafast dynamics of matter attaining the highest temporal resolution in electron microscopy. For this reason, it dramatically broadens the scope of ultrafast electron microscopy and allows to image the electronic structure

-1- dynamics in matter, for the first time, which makes the electron microscope the fastest camera ever known. Moreover, this approach is the best candidate to attain the attosecond temporal resolution in the electron microscopy, opening the way for establishing the “Attomicroscopy”, to image the electron motion in the act. • Demonstration of the optical gating of ultrafast electron pulse, and its application in the study of ultrafast phase transition dynamics in the solid state, PNAS, 112, 12944-12949, (2015). Optical gating of electron pulses holds promise for generating few femtosecond to sub-femtosecond electron pulses, which paves the way to establish the new field of “Attomicroscopy”. Potentially, this will lead to femtosecond and attosecond imaging of electron dynamics in matter. • Demonstration of a full control and on-demand sculpting of light waveform with attosecond resolution, Science 334, 195, (2011), and Rev. Sci. Instrum., 83 (2012) . This allowed for conducting the first transient absorption pump-probe experiment for real-time observation and coherent control of valence electron motion in ions.

Refereed Publications v M. Th. Hassan, Attomicroscopy: from femtosecond to attosecond electron microscopy. J. Phys. B: At. Mol. Opt. Phys. 51, 032005, (2018). v M. Th. Hassan*, J. S. Baskin, B. Laio, and A. H. Zewail, High-temporal-resolution electron microscopy for imaging ultrafast electron dynamics, Nature Photonics 11, 425–430 (2017). *corresponding author contribution Ø News and Views Attosecond photonics: Imaging ultrafast electron dynamics (Nature Photonics). v X. Fu, B. Chen, J. Tang, M. Th. Hassan, A. H. Zewail, Imaging rotational dynamics of nanoparticles in liquid by 4D electron microscopy, Science, 2017. 355 (6324): p. 494-498. Ø News and Views Laser-driven nanoparticle motion in liquids (Science) v M. Th. Hassan, T.T. Luu, A. Moulet, O. Razskazovskaya,P. Zhokhov, M. Garg, N. Karpowicz, A. M. Zheltikov,V. Pervak, F. Krausz and E. Goulielmakis, Optical attosecond pulses and tracing the nonlinear response of bound electrons, Nature 530, 66-70 (2016). Ø News and Views Optical physics: Ultrashort light pulses shake atoms (Nature) Shortest ever pulse of visible light spots photons fleeing atoms (New Scientist) Sluggish electrons caught in action (ScienceDaily) Superfast light pulses able to measure response time of electrons to light (Phys.org) Fastest Light Pulses Show Electrons Are Sluggish (IEEE spectrum) Sluggish electrons caught in action (ChemEurop). v M. Th. Hassan, H. Liu, J. S. Baskin, and A. H. Zewail, Photon gating in four-dimensional ultrafast electron microscopy, Proceedings of the National Academy of Sciences of the United States of America (PNAS) , 112, 12944-12949, (2015). v T. T. Luu, M. Garg, S. Y. Kruchinin, A. Moulet, M. T. Hassan, and E. Goulielmakis, Extreme ultraviolet high- harmonic spectroscopy of solids, Nature 521, 498 (2015). v Wirth, M. Th. Hassan, I. Grguraš, J. Gagnon, A. Moulet, T.T. Luu, S. Pabst, R. Santra, Z. Alahmed, A.M. Azzeer, V.S. Yakovlev, V. Pervak, F. Krausz and E. Goulielmakis, Synthesized Light Transients, Science 334, 195, (2011). v M. Th. Hassan, A. Wirth, I. Grguraš, A. Moulet, T.T. Luu, J. Gagnon, V. Pervak and E. Goulielmakis, "Invited Article”: Attosecond Photonics: Synthesis and Control of Light Transients, Rev. Sci. Instrum., 83 (2012) . v Invited Talks (15 invited talked at intentional meetings, events and special seminars), for more details please visit Hassan’s lab webpage

-2-