Results 221 to 230 of about 36,510 (267)
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1982
Before it is put to use, a laser beam is generally transformed in some way. The most common type of transformation is that which occurs when the beam is made to propagate in free space or through a suitable optical system. Since this produces a change in the spatial distribution of the beam (e.g., the beam may be focused or expanded), we shall refer to
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Before it is put to use, a laser beam is generally transformed in some way. The most common type of transformation is that which occurs when the beam is made to propagate in free space or through a suitable optical system. Since this produces a change in the spatial distribution of the beam (e.g., the beam may be focused or expanded), we shall refer to
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1986
The experiment was conducted using a neody-mium glass laser modified for normal pulse operation. The energy density was varied from 850J/sq cm where no breakdown occurred to 5000J/sq cm where the threshold for breakdown was exceeded. The normal pulse duration was 600μS.
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The experiment was conducted using a neody-mium glass laser modified for normal pulse operation. The energy density was varied from 850J/sq cm where no breakdown occurred to 5000J/sq cm where the threshold for breakdown was exceeded. The normal pulse duration was 600μS.
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Controlled generation of higher-order Poincaré sphere beams from a laser
Nature Photonics, 2016Darryl Naidoo +2 more
exaly
Mathematics of vectorial Gaussian beams
Advances in Optics and Photonics, 2019Uri Levy, Yaron Silberberg
exaly
Stable generation of GeV-class electron beams from self-guided laser–plasma channels
Nature Photonics, 2008Nasr A M Hafz +2 more
exaly