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Generation of extreme ultraviolet vector beams from infrared laser pulses

Generation of extreme ultraviolet vector beams from infrared laser pulses
Generation of extreme ultraviolet vector beams from infrared laser pulses
Vector beams are light beams with spatially variant polarization. During the last decade vector beams have become an indispensable tool in many areas of science and technology such as optical trapping, quantum memories, and quantum optics. In particular, radially and azimuthally polarized light beams are the paradigm of vector beams. Radial vector beams are especially interesting due to the non-vanishing longitudinal electric field component present in tightly focusing systems, which allows to sharply focus light below the diffraction limit. On the other hand, azimuthal vector beams can induce longitudinal magnetic fields with potential applications in spectroscopy and microscopy. However, the spectral limitations of the generation techniques of vector beams based on linear optics prevent their efficient generation in the extreme-ultraviolet (EUV) and x-ray regimes, which would further extend their applications down to the nanometric scale. High-order harmonic generation (HHG) is known as a unique non-perturbative frequency up-conversion process for the generation of coherent EUV and soft x-ray radiation. A remarkable aspect of HHG is its fully coherent nature, mapping the characteristics of the driving field to the high frequency spectral region and thus allowing to harness the angular momentum properties of the harmonic radiation through modifications of the driving field.
In this work EUV vector beams are generated for the first time using HHG. To do so, an infrared fs radially polarized vector beam –generated with a s-waveplate – is focused into an argon gas target, whose atoms emit coherent EUV radiation through HHG. Our experimental and theoretical results demonstrate that HHG imprints the polarization state of the infrared beam, ranging from radial to azimuthal, into the higher frequency radiation. Our numerical simulations also demonstrate that the generated high-order harmonic beams can be synthesized into attosecond vector beams in the EUV/soft x-ray regime. Our proposal overcomes the state of the art limitations for the generation of vector beams far from the visible domain and could be applied in fields such as diffractive imaging, EUV lithography, or ultrafast control of magnetic properties.
Turpin, Alex
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San Román, Julio
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Picón, Antonio
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Drevinskas, Rokas
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Čerkauskaite, Ausra
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Kazansky, Peter
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Durfee, Charles G.
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Sola, Íñigo J.
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Hernandez-Garcia, C.
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Turpin, Alex
eb1ac1ea-ec6a-4371-bed3-f91996d1846d
San Román, Julio
5259ec5a-9630-49af-9dfb-f935d2703250
Picón, Antonio
1b8aeb8e-009b-4f5e-a71f-258e71074de2
Drevinskas, Rokas
23f858b5-8750-4113-ba11-49cfefc3dbb7
Čerkauskaite, Ausra
7f5b1e7a-b9f9-41d2-ab4d-307a46605e43
Kazansky, Peter
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Durfee, Charles G.
a547df9a-76e1-4a5f-908f-0e7ea172367b
Sola, Íñigo J.
5d3bae4e-556c-48a2-8c91-c5f3a263bd12
Hernandez-Garcia, C.
5e305561-5812-49b8-a32b-7937fa99b22c

Turpin, Alex, San Román, Julio, Picón, Antonio, Drevinskas, Rokas, Čerkauskaite, Ausra, Kazansky, Peter, Durfee, Charles G., Sola, Íñigo J. and Hernandez-Garcia, C. (2017) Generation of extreme ultraviolet vector beams from infrared laser pulses. European Quantum Electronics Conference 2017, , Munich, Germany. 25 - 29 Jun 2017. 1 pp .

Record type: Conference or Workshop Item (Other)

Abstract

Vector beams are light beams with spatially variant polarization. During the last decade vector beams have become an indispensable tool in many areas of science and technology such as optical trapping, quantum memories, and quantum optics. In particular, radially and azimuthally polarized light beams are the paradigm of vector beams. Radial vector beams are especially interesting due to the non-vanishing longitudinal electric field component present in tightly focusing systems, which allows to sharply focus light below the diffraction limit. On the other hand, azimuthal vector beams can induce longitudinal magnetic fields with potential applications in spectroscopy and microscopy. However, the spectral limitations of the generation techniques of vector beams based on linear optics prevent their efficient generation in the extreme-ultraviolet (EUV) and x-ray regimes, which would further extend their applications down to the nanometric scale. High-order harmonic generation (HHG) is known as a unique non-perturbative frequency up-conversion process for the generation of coherent EUV and soft x-ray radiation. A remarkable aspect of HHG is its fully coherent nature, mapping the characteristics of the driving field to the high frequency spectral region and thus allowing to harness the angular momentum properties of the harmonic radiation through modifications of the driving field.
In this work EUV vector beams are generated for the first time using HHG. To do so, an infrared fs radially polarized vector beam –generated with a s-waveplate – is focused into an argon gas target, whose atoms emit coherent EUV radiation through HHG. Our experimental and theoretical results demonstrate that HHG imprints the polarization state of the infrared beam, ranging from radial to azimuthal, into the higher frequency radiation. Our numerical simulations also demonstrate that the generated high-order harmonic beams can be synthesized into attosecond vector beams in the EUV/soft x-ray regime. Our proposal overcomes the state of the art limitations for the generation of vector beams far from the visible domain and could be applied in fields such as diffractive imaging, EUV lithography, or ultrafast control of magnetic properties.

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Abstract_CLEO_VB_HHG_final - Accepted Manuscript
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More information

Accepted/In Press date: 23 March 2017
Published date: 27 June 2017
Venue - Dates: European Quantum Electronics Conference 2017, , Munich, Germany, 2017-06-25 - 2017-06-29

Identifiers

Local EPrints ID: 416121
URI: http://eprints.soton.ac.uk/id/eprint/416121
PURE UUID: aadaafe7-4084-4f3f-a143-86bf787fbe60
ORCID for Ausra Čerkauskaite: ORCID iD orcid.org/0000-0002-2476-7797

Catalogue record

Date deposited: 05 Dec 2017 17:30
Last modified: 22 Mar 2021 17:43

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