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THESE - Université Ferhat Abbas de Sétif

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Chapitre III Amélioration <strong>de</strong> la superrésolution <strong>de</strong>s faisceaux lasers par <strong>de</strong>s éléments optiques <strong>de</strong><br />

phase<br />

III.3.4.2 Transformation <strong>de</strong> LG20 et le fit <strong>de</strong> la distribution LG00 obtenue<br />

L'intensité normalisée<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

0.0<br />

LG20 redressé<br />

Fit <strong>de</strong> la courbe<br />

-0.03 -0.02 -0.01 0.00 0.01 0.02 0.03<br />

r(mm)<br />

Figure III.10 : Distribution <strong>de</strong> l'intensité du LG20 redressé, W0f= 8.5 m; 2 =0.00011,<br />

R 2 =0.999<br />

III.3.4.3 Transformation <strong>de</strong> LG30 et le fit <strong>de</strong> la distribution LG00 obtenue<br />

L'intensité normalisée<br />

1.0 LG30 Redressé<br />

Fit <strong>de</strong> la courbe<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

0.0<br />

-0.02 -0.01 0.00<br />

r(mm)<br />

0.01 0.02<br />

Figure III. 11: Distribution <strong>de</strong> l'intensité du LG30 redressé, W0f=7.3m, 2 =0.00012,<br />

R 2 =0.99884<br />

67

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