Spatio-temporal characterization of optical waveforms
| Autor: | Claus-Peter Schulz, Achut Giree, Marc J. J. Vrakking, John W. G. Tisch, Jon P. Marangos, D. J. Walke, Thomas Barillot, G. Greening, Paloma Matia-Hernando, Federico J. Furch, Felix Schell, Tobias Witting |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Wavefront business.industry Aperture Attosecond Physics::Optics Nonlinear optics 02 engineering and technology Laser 01 natural sciences Collimated light Pulse (physics) law.invention 010309 optics 020210 optoelectronics & photonics Optics law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering business Ultrashort pulse |
| Zdroj: | 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). |
| Popis: | Near single-cycle lasers have opened new frontiers in nonlinear optics and are essential tools for attosecond science [1]. In the last few years development in pulse characterization has been aimed both at improvements in fidelity and ease of use and also the ability to characterize ever shorter pulses down to near-single-or sub-cycle pulse durations [2, 3]. It is usually assumed that the electric field of a laser pulse can be factorized into a spatial and a temporal part E(x, y, t) = E(x, y) E(t). Most currently known and established pulse characterization techniques average over one or more spatial dimension of the beam or measure a sub-sample of the beam selected by an aperture, which can lead to errorneous measurements even in case of benign sources like hollow fiber compressors due to the inherent radially varying spectrum in the collimated beam. For most experiments space-time couplings are detrimental but for some e.g. the attosecond gating scheme by ultrafast wavefront rotation, the introduction of deliberate space-time couplings where E(x, y, t) ≠ E(x, y) E(t) is desirable [4]. |
| Databáze: | OpenAIRE |
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