Avner Fleischer

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Circularly-polarized extreme ultraviolet and X-ray radiation is useful for analysing the structural, electronic and magnetic properties of materials. To date, such radiation has only been available at large-scale X-ray facilities such as synchrotrons. Here, we demonstrate the first bright, phase-matched, extreme ultraviolet circularly-polarized high(More)
Cellular reprogramming consists of the conversion of differentiated cells into pluripotent cells; the so-called induced Pluripotent Stem Cells. iPSC are amenable to in vitro manipulation and, in theory, direct production of any differentiated cell type. Furthermore, iPSC can be obtained from sick individuals and subsequently used for disease modeling, drug(More)
We demonstrate experimentally sparsity-based super-resolution of coherent diffraction imaging (CDI) with extreme UV radiation. We also present the first experimental CDI of a practically one-dimensional object, overcoming the well-known ambiguity problem in one-dimensional phase retrieval. Phase retrieval problems arise in many optical applications,(More)
Phase-retrieval problems of one-dimensional (1D) signals are known to suffer from ambiguity that hampers their recovery from measurements of their Fourier magnitude, even when their support (a region that confines the signal) is known. Here we demonstrate sparsity-based coherent diffraction imaging of 1D objects using extreme-ultraviolet radiation produced(More)
Strong-field ionization provides fundamental insight into light-matter interactions, encoding the structure of atoms and molecules on the subångström and subfemtosecond scales. In this Rapid Communication, we explore an important regime: strong-field ionization by two-color circularly polarized laser fields. In contrast to past work using linearly polarized(More)
The solutions of the time independent Schrödinger equation for non-Hermitian (NH) Hamiltonians have been extensively studied and calculated in many different fields of physics by using L 2 methods that originally have been developed for the calculations of bound states. The existing non-Hermitian formalism breaks down when dealing with wavepack-ets(WP). An(More)
  • Daniel Hickstein, B A In Chemistry, Daniel O 'leary, Chris Mancuso, Daniel D Hickstein, Patrick Grychtol +14 others
  • 2014
Working with Profs. Henry Kapteyn and Margaret Murnane, I use femtoseond Ti:sapphire lasers to study the dynamics of molecules and nanomaterials on the femtosecond timescale. My thesis centers on extending Velocity Map Imaging (VMI) spectroscopy to nanomaterials and extreme-ultraviolet (EUV) wavelengths. I used NMR spectoscopy and computational chemistry to(More)
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