Results 201 to 210 of about 133,733 (246)

Preparation and in vitro sustained release performance of thermosensitive gel microsphere composite loaded with Anti-Tuberculosis drug PaMZ/BMP-2. [PDF]

J Orthop Surg Res
Li G, Song Q, Song Y, Liao W, Zhao D, Hong B, Cao G.   +6 more
europepmc   +1 more source

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High-diffraction-efficiency pseudorandom encoding

Journal of the Optical Society of America A, 2000
Pseudorandom encoding (PRE) is a statistics-based procedure in which a pure-phase spatial light modulator (SLM) can yield, on the average, the prescribed diffraction pattern specified by the user. We seek to combine PRE with the optimization of an aperture-based target function.
Y, Yang, H, Stark, D, Gurkan, C L, Lawson, R W, Cohn   +4 more
openaire   +4 more sources

Diffraction efficiency of random binary-amplitude diffracting screens

Applied Optics, 1994
The diffraction characteristics of random binary-amplitude diffracting screens are investigated. It is shown that, for such a random diffracting screen with complex amplitude transmittance t equal to either 0 or 1, the diffraction efficiency of the screen is maximized when 50% of the screen has transmittance t = 1, independent of other characteristics ...
W T, Rhodes, M S, McMeekin
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Efficiency analysis of diffractive lenses

Journal of the Optical Society of America A, 2001
Multilevel diffractive optical elements are necessary for achieving high-efficiency performance. Here the diffraction efficiency of a multilevel phase-only diffractive lens is analyzed. Approximate, as well as more accurate, approaches are presented. Both plane-wave and Gaussian illumination are discussed.
U, Levy, D, Mendlovic, E, Marom
openaire   +2 more sources