Spatio-temporal characterization of ultrashort vector pulses
Spatio-temporal characterization of ultrashort vector pulses
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.
Zdagkas, Apostolos
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Nalla, Venkatram
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Papasimakis, Nikitas
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Zheludev, Nikolay I.
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Zdagkas, Apostolos
af3bc86e-b049-4ea1-b7bb-44e2ee0a4441
Nalla, Venkatram
70e01cd2-f027-457e-930a-251c83b85806
Papasimakis, Nikitas
f416bfa9-544c-4a3e-8a2d-bc1c11133a51
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Zdagkas, Apostolos, Nalla, Venkatram, Papasimakis, Nikitas and Zheludev, Nikolay I.
(2021)
Spatio-temporal characterization of ultrashort vector pulses.
APL Photonics, 6 (11), [116103].
(doi:10.1063/5.0056066).
Abstract
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.
Text
5.0056066
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Accepted/In Press date: 17 October 2021
e-pub ahead of print date: 8 November 2021
Additional Information:
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.
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Local EPrints ID: 471381
URI: http://eprints.soton.ac.uk/id/eprint/471381
ISSN: 2378-0967
PURE UUID: d8e307f4-b299-41bc-9140-17e57c96acda
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Date deposited: 04 Nov 2022 17:36
Last modified: 18 Mar 2024 03:07
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Author:
Apostolos Zdagkas
Author:
Venkatram Nalla
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