Phase-Matched High Order Harmonic Generation & Application

Name: Phase-Matched High Order Harmonic Generation & Application
Brand: Nova Science Publishers Inc
SKU: 9781626181281
Price: 954.85 RON
Availability: InStock

Autor: Dao Van Lap, Dinh Ba Khuong

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Editura: Nova Science Publishers Inc

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954.85 lei

High order harmonic generation (HHG) produced by the interaction of an intense laser pulse and a gas...

Informații despre carte

Autor

Dao Van Lap, Dinh Ba Khuong

Limbă

engleză

Legare

Carte - Copertă tare

Publicat

2013

Pagini

124

EAN

9781626181281

ISBN

9781626181281

Enbook ID

06436695

Editura

Nova Science Publishers Inc

Greutate

416

Dimensiuni

159 x 237 x 15

Descriere completă

High order harmonic generation (HHG) produced by the interaction of an intense laser pulse and a gas medium can provide a table top scale coherent radiation source in the short wavelength range from the extreme ultraviolet to the soft x-ray region. This book presents a study based on high order harmonic generation in a semi-infinite gas cell. Two novel schemes are presented which have been used to enhance the quality of the HHG source including the conversion efficiency, the coherence, and the cut-off photon energy. This book focuses on the phase matching of the non-linear conversion process which is the main limitation to the quality of the HHG source. In the first scheme, a combination of lens and axicon is used to create a Bessel Gaussian beam instead of only a Gaussian beam and the presence of a new geometrical phase mismatch term is demonstrated. This allows us to compensate for the phase mismatch and thus to enhance the phase matching condition. In the second scheme, the phase matching is controlled by a means of an off-axis beam. When the phase mismatch is varied, mainly due to a change in the dipole phase term, the harmonic emission can be destroyed or enhanced. This technique provides the possibility to generate very high harmonic photon energies.

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