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High intensity pulse self-compression in short hollow core capillaries

High intensity pulse self-compression in short hollow core capillaries
High intensity pulse self-compression in short hollow core capillaries
The drive for shorter pulses for use in techniques such as high harmonic generation and laser wakefield acceleration requires continual improvement in post-laser pulse compression techniques. The two most commonly used methods of pulse compression for high intensity pulses are hollow capillary compression via self-phase modulation (SPM) [1] and the more recently developed filamentation [2]. Both of these methods can require propagation distances of 1-3 m to achieve spectral broadening and compression. Additionally, hollow capillary compression requires post compression of the broadened pulse by chirped mirrors. Filamentation trades the efficiency of hollow capillary compression (67%) for ionisation-induced pulse self-compression. A mixture of SPM and plasma generation increases the spectral bandwidth of the pulse; however this occurs only in a small region at the centre of the beam. Spatial filtering is required to achieve the shortest pulses, reducing the efficiency to 20%. Although the majority of hollow core capillary compression requires long propagation distances, compression in short capillaries [3] with significant plasma generation has been demonstrated to be a promising technique.
Butcher, Thomas J.
77bed03c-ae8f-4e12-8c35-974150a7cc2d
Anderson, Patrick N.
72f88ac4-4611-4dbb-8830-63fb6933e1a2
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Frey, Jeremy G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Brocklesby, William S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Butcher, Thomas J.
77bed03c-ae8f-4e12-8c35-974150a7cc2d
Anderson, Patrick N.
72f88ac4-4611-4dbb-8830-63fb6933e1a2
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Frey, Jeremy G.
ba60c559-c4af-44f1-87e6-ce69819bf23f
Brocklesby, William S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67

Butcher, Thomas J., Anderson, Patrick N., Horak, Peter, Frey, Jeremy G. and Brocklesby, William S. (2011) High intensity pulse self-compression in short hollow core capillaries. European Conference on Lasers and Electro-Optics, Munich, Germany. 22 - 26 May 2011.

Record type: Conference or Workshop Item (Paper)

Abstract

The drive for shorter pulses for use in techniques such as high harmonic generation and laser wakefield acceleration requires continual improvement in post-laser pulse compression techniques. The two most commonly used methods of pulse compression for high intensity pulses are hollow capillary compression via self-phase modulation (SPM) [1] and the more recently developed filamentation [2]. Both of these methods can require propagation distances of 1-3 m to achieve spectral broadening and compression. Additionally, hollow capillary compression requires post compression of the broadened pulse by chirped mirrors. Filamentation trades the efficiency of hollow capillary compression (67%) for ionisation-induced pulse self-compression. A mixture of SPM and plasma generation increases the spectral bandwidth of the pulse; however this occurs only in a small region at the centre of the beam. Spatial filtering is required to achieve the shortest pulses, reducing the efficiency to 20%. Although the majority of hollow core capillary compression requires long propagation distances, compression in short capillaries [3] with significant plasma generation has been demonstrated to be a promising technique.

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e-pub ahead of print date: 2011
Venue - Dates: European Conference on Lasers and Electro-Optics, Munich, Germany, 2011-05-22 - 2011-05-26
Organisations: Optoelectronics Research Centre, Chemistry

Identifiers

Local EPrints ID: 341525
URI: https://eprints.soton.ac.uk/id/eprint/341525
PURE UUID: 0d7e6297-82f4-4087-a29d-f741fe97283d
ORCID for Peter Horak: ORCID iD orcid.org/0000-0002-8710-8764
ORCID for Jeremy G. Frey: ORCID iD orcid.org/0000-0003-0842-4302
ORCID for William S. Brocklesby: ORCID iD orcid.org/0000-0002-2123-6712

Catalogue record

Date deposited: 26 Jul 2012 10:37
Last modified: 20 Aug 2019 00:40

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