Vectorial phase retrieval for linear characterization of attosecond pulses
| Autor: | Nirit Dudovich, Dan Oron, Adam S. Wyatt, Ian A. Walmsley, Osip Schwartz, Oren Raz, Dane R. Austin, Olga Smirnova, Andrea Schiavi, Boaz Nadler |
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| Rok vydání: | 2016 |
| Předmět: |
Attosecond
General Physics and Astronomy Physics::Optics FOS: Physical sciences 02 engineering and technology Electronic structure Molecular systems 01 natural sciences symbols.namesake Optics 0103 physical sciences Physics::Atomic and Molecular Clusters Waveform Physics::Atomic Physics 010306 general physics Physics::Atmospheric and Oceanic Physics Physics business.industry 021001 nanoscience & nanotechnology Polarization (waves) Fourier transform symbols 0210 nano-technology business Phase retrieval Physics - Optics Optics (physics.optics) |
| Zdroj: | Scopus-Elsevier |
| Popis: | The waveforms of attosecond pulses produced by high-harmonic generation carry information on the electronic structure and dynamics in atomic and molecular systems. Current methods for the temporal characterization of such pulses have limited sensitivity and impose significant experimental complexity. We propose a new linear and all-optical method inspired by widely-used multi-dimensional phase retrieval algorithms. Our new scheme is based on the spectral measurement of two attosecond sources and their interference. As an example, we focus on the case of spectral polarization measurements of attosecond pulses, relying on their most fundamental property -- being well confined in time. We demonstrate this method numerically reconstructing the temporal profiles of attosecond pulses generated from aligned $CO_2$ molecules. Comment: 4 pages 3 figures |
| Databáze: | OpenAIRE |
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