Spatio-temporal characterization of ultrashort vector pulses
| Autor: | Nikolay I. Zheludev, Apostolos Zdagkas, Nikitas Papasimakis, Venkatram Nalla |
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| Přispěvatelé: | School of Physical and Mathematical Sciences, Centre for Disruptive Photonic Technologies (CDPT), The Photonics Institute |
| Rok vydání: | 2021 |
| Předmět: |
Computer Networks and Communications
Light-Pulses Physics::Optics FOS: Physical sciences 01 natural sciences law.invention 010309 optics Optics law Physics [Science] 0103 physical sciences Applied optics. Photonics 010306 general physics Physics Wavefront Focal point business.industry Laser Polarization (waves) Pulse shaping Atomic and Molecular Physics and Optics Pulse (physics) TA1501-1820 Interferometry business Ultrashort pulse Physics - Optics Spectral Phase Interferometry Optics (physics.optics) |
| Zdroj: | APL Photonics, Vol 6, Iss 11, Pp 116103-116103-11 (2021) |
| DOI: | 10.48550/arxiv.2101.11651 |
| Popis: | Ultrafast vectorially polarized pulses have found many applications in information and energy transfer owing mainly to the presence of strong longitudinal components and their space-polarization non-separability. Due to their broad spectra, such pulses often exhibit space-time couplings, which significantly affect the pulse propagation dynamics. Although such couplings usually result in reduced energy density at the focal spot, they have been utilized to demonstrate pulse shaping as in the case of a rotating or sliding wavefront as the pulse travels through its focal point. Here, we present a new method for the spatiotemporal characterization of ultrashort cylindrical vector pulses based on a combination of spatially resolved Fourier transform spectroscopy and Mach-Zehnder interferometry. The method provides access to spatially resolved spectral amplitudes and phases of all polarization components of the pulse. We demonstrate the capabilities of the method by completely characterizing a 10 fs radially polarized pulse from a Ti:sapphire laser centered at 800 nm. Ministry of Education (MOE) Published version The authors acknowledge support from the MOE Singapore (Grant No. MOE2016-T3-1-006), the UK’s Engineering and Physical Sciences Research Council (Grant No. EP/M009122/1), the European Research Council (Advanced Grant No. FLEET-786851), and the Defense Advanced Research Projects Agency (DARPA) under the Nascent Light Matter Interactions program. |
| Databáze: | OpenAIRE |
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