منابع مشابه
Visualizing Underwater Ocean Optics
Simulating the in-water ocean light field is a daunting task. Ocean waters are one of the richest participating media, where light interacts not only with water molecules, but with suspended particles and organic matter as well. The concentration of each constituent greatly affects these interactions, resulting in very different hues. Inelastic scattering events such as fluorescence or Raman sc...
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Technologies enable new modes of perception, which transform the imagination and inspire the arts. A vivid example of this process is the transvaluation of the underwater environment in the Western imaginary. For millennia, there were only very rudimentary technologies to observe this realm of our planet that is inhospitable to human physiology for longer than a breath of air.1 Humans understoo...
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Introduction: Underwater vision is vital to many Navy applications involving mine detection, diver visibility, and search and rescue. The ability to see better and farther has always been a central goal of underwater imaging projects. Unlike in the atmosphere, where visibility can be on the order of miles, the visual range in the underwater environment is rather limited, at best on the order of...
متن کاملUnderwater Optics in Sub-Antarctic and Antarctic Coastal Ecosystems
Understanding underwater optics in natural waters is essential in evaluating aquatic primary production and risk of UV exposure in aquatic habitats. Changing environmental conditions related with global climate change, which imply potential contrasting changes in underwater light climate further emphasize the need to gain insights into patterns related with underwater optics for more accurate f...
متن کاملHiding an elephant into a matchbox with transformation optics
Based on transformation optics, we propose an illusion device that can make objects look much smaller and different than they actually are. In particular, the device has a capability to hide a large object (like an elephant) into a small one (like a matchbox). Compared to previous proposals for illusion devices, there is no requirement for negative refractive index or for spee...
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ژورنال
عنوان ژورنال: Nature
سال: 1977
ISSN: 0028-0836,1476-4687
DOI: 10.1038/266285c0