Spatiotemporal Dynamics of Femtosecond Laser Pulses during Apodization by a Serrated Diaphragm

We report a numerical investigation of the spatiotemporal dynamics of a femtosecond laser pulse after aperture separation on a circular serrated diaphragm and a spatial filter. It is found that the use of serrated diaphragms together with a spatial filter can markedly reduce the negative impact of d...

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Bibliographic Details
Published inBulletin of the Lebedev Physics Institute Vol. 52; no. Suppl 3; pp. S238 - S246
Main Authors Zolotavin, M. A., Soloviev, A. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.08.2025
Springer Nature B.V
Subjects
Apodization
Diaphragms
Femtosecond pulsed lasers
Femtosecond pulses
Physics
Physics and Astronomy
Separation
Spatial filtering
femtosecond pulses
diffraction
serrated diaphragms
spatial filters
apodization
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Summary:We report a numerical investigation of the spatiotemporal dynamics of a femtosecond laser pulse after aperture separation on a circular serrated diaphragm and a spatial filter. It is found that the use of serrated diaphragms together with a spatial filter can markedly reduce the negative impact of diffraction effects on the spatiotemporal dynamics of the pulse. Criteria are formulated to determine the parameters of the separation scheme in order to avoid significant distortions of the radiation properties during subsequent focusing.
Bibliography:ObjectType-Article-1
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ISSN:1068-3356
1934-838X
DOI:10.3103/S1068335625602420