Improvement of laser beams performances by  diffractive optics

CHABOU , Saoussene; BENCHEIKH , Abdelhlim Supervisor

Improvement of laser beams performances by diffractive optics

dc.contributor.author	CHABOU , Saoussene
dc.contributor.author	BENCHEIKH , Abdelhlim Supervisor
dc.date.accessioned	2026-06-30T13:10:29Z
dc.date.issued	2021
dc.description	La propagation du faisceau laser fait l'objet des recherches actives depuis plus de 50 ans. Tout au long de cette thèse, nous étudions la propagation des faisceaux lasers Gaussiens, tels que les faisceaux Laguerre-Gauss et Hermite-Gauss, passés à travers des éléments optiques diffractifs (ouverture, disque opaque, prisme). Nous effectuons une investigation sur les paramètres (facteur de qualité M², l’effet du décalage focal, la largeur, la région de diffraction libre, ...) qui délimitent les propriétés de ces faisceaux propagés (la nature non diffractant et la propriété d'auto-reconstruction), par des mesures quantitative et qualitative. La compréhension et l'identification de ces propriétés des faisceaux seront utiles pour divers domaines.
dc.description.abstract	Laser beam propagation has been a subject of active research for over 50 years. Throughout this thesis, we study the propagation behavior of different laser Gaussian beams, such as Laguerre Gaussian and Hermite Gaussian beams, passed through diffractive optical elements (aperture, opaque disk, prism). We perform an investigation into the parameters (the beam propagation factor, focal shift effect, beam width, free-diffraction range, ....) that delineate the properties of these propagated beams (non-diffracting nature and self-healing property ), through quantitative and qualitative measurements. The understanding and identification of such beam properties will be useful for various fields
dc.description.sponsorship	كا ٌ االَعكاسيت انبظزيت انعُاطز عبز انًارة ، انغاوسيت انهيزر أشعت يختهف اَتشار سهىك َذرس ، األطزوحت هذِ خالل يٍ انبؤري، انتحىل وتأثيز ، انحزيت اَتشار عايم ( انًعهًاث في تحقيق بإجزاء َقىو ). انًُشىر ، انًعتى انقزص ، انفتحت ( وخاطيت انًشتتت غيز انطبيعت ( انًُتشزة انحزو هذِ خظائض تحذد انتي ...) انحز، االَعزاج ُطقت وي انحزيت، وعز ع . وانُىعيت انكًيت انقياساث خالل يٍ ،) انذاتي انشفا ء . انً
dc.identifier.uri	https://repository.univ-setif.dz/handle/123456789/1711
dc.language.iso	en
dc.publisher	Setif 1 University - Ferhat ABBAS , Institute of Optics and Precision Mechanics
dc.subject	Gaussian beams
dc.subject	laser beam propagation
dc.subject	diffraction
dc.subject	laser beam characteristics
dc.title	Improvement of laser beams performances by diffractive optics
dc.type	Thesis

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Name:: E-TH1947 Amélioration des performances des faisceaux lasers par l’optique diffractive Chabou, Saoussene.pdf
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Format:: Adobe Portable Document Format

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