Focal shift of apodized truncated hyperb
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Xiumin Gao; Jinsong Li
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Article
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2007
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Elsevier Science
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English
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Focal shift of hyperbolic-cosine-Gaussian beams induced by pure phase apodizer was investigated theoretically. The pure phase apodizer consists of three concentric zones: center circle zone, inner annular zone and outer annular zone. And the phase variance of the inner annular zone is adjustable. Re