transient-pain 发表于 2025-3-25 05:12:36
https://doi.org/10.1007/978-3-642-51709-9The first good images by means of Bragg-diffraction of laser light from sound were produced in 1966 by Korpel *. Korpel’s work followed the experimental conclusions reported in 1965 by Cohen and Gordon on the nature of light diffraction by ultrasonic wave fronts .antecedence 发表于 2025-3-25 09:23:12
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https://doi.org/10.1007/3-540-54572-7 the infrared, ultraviolet, microwave or x-ray portions of the electromagnetic spectrum but using acoustical energy for imaging is quite different in the sense that it involves more than an extension of vision into the far reaches of the electromagnetic spectrum. In that sense, acoustical imaging ha阶层 发表于 2025-3-25 23:21:32
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https://doi.org/10.1007/978-3-322-86840-4 lenses. Relative to optical holography, this leaves the problem of replacing the photographic plates used as a detector with detectors more suitable for sensing and recording an acoustical hologram. Several suitable detectors have been devised. but perhaps the most obvious method for recording theCHOP 发表于 2025-3-26 14:22:44
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