Two-dimensional beam smoothing by broadband random-phase irradiation

A new technique for two-dimensional smoothing is proposed to generate smooth laser irradiation profiles on laser fusion targets employing the broad bandwidth of KrF lasers. In this technique, a wedged etalon is used to get angular dispersion to the orthogonal direction to the one-dimensional broadba...

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Bibliographic Details
Published in:	Optics communications Vol. 120; no. 5; pp. 299 - 302
Main Authors:	Matsushima, Isao, Tomie, Toshihisa, Matsumoto, Yuji, Okuda, Isao, Miura, Eisuke, Yashiro, Hidehiko, Takahashi, Eiichi, Owadano, Yoshiro
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 01-11-1995 Elsevier Science
Subjects:	Exact sciences and technology Fundamental areas of phenomenology (including applications) Gas lasers including excimer and metal-vapor lasers Lasers Optics Physics Random phase Excimer lasers Laser irradiation Experimental study Krypton fluorides Krypton fluoride lasers Laser beam melting
Online Access:	Get full text
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Summary:	A new technique for two-dimensional smoothing is proposed to generate smooth laser irradiation profiles on laser fusion targets employing the broad bandwidth of KrF lasers. In this technique, a wedged etalon is used to get angular dispersion to the orthogonal direction to the one-dimensional broadband random-phase smoothing effect. The preliminary experiment has demonstrated its effectiveness.
ISSN:	0030-4018 1873-0310
DOI:	10.1016/0030-4018(95)00451-D