COMPARISON BETWEEN MEASURED AND CALCULATED NONUNIFORMITIES OF NIKE LASER-BEAMS SMOOTHED BY INDUCED SPATIAL INCOHERENCE

Authors
DENIZ AV LEHECKA T LEHMBERG RH OBENSCHAIN SP
Citation
Av. Deniz et al., COMPARISON BETWEEN MEASURED AND CALCULATED NONUNIFORMITIES OF NIKE LASER-BEAMS SMOOTHED BY INDUCED SPATIAL INCOHERENCE, Optics communications, 147(4-6), 1998, pp. 402-410
Citations number
19
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
147
Issue
4-6
Year of publication
1998
Pages
402 - 410
Database
ISI
SICI code
0030-4018(1998)147:4-6<402:CBMACN>2.0.ZU;2-U
Abstract
We have studied the spatial fluence nonuniformities in single beams fr om the Nike KrF laser smoothed by the Induced Spatial Incoherence (ISI ) technique. This study compares time-integrated CCD camera measuremen ts with a numerical model of ISI speckle used in the NRL FAST2D hydroc ode, and with analytic calculations that examine the ensemble-ever age behavior of that model. The results verify the model and calculations , showing good agreement of both the spatial mode spectra and the tota l nonuniformity versus pulsewidth and bandwidth. (C) 1998 Elsevier Sci ence B.V.