String method for efficient design of metasurface-based optical systems.
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DOI: 10.1364/ao.549335
Abstract: We present an efficient method for calculating the phase profiles of imaging and nonimaging optical systems composed of one or more cascaded metasurfaces, such as metalenses and concentrating metasurfaces. This method is a generalization of… read more here.
Keywords: optical systems; phase profiles; based optical; string method ... See more keywords
Penile strangulation by different objects and its removal by the modified string method: Management of four cases with review of literature
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DOI: 10.4103/ua.ua_178_17
Abstract: Penile strangulation is a challenging clinical situation and usually requires prompt treatment. Penile strangulation by a nonmetallic or thin metallic ring is easily overcome by severing/cutting the object; however, a heavy and long metal ring… read more here.
Keywords: strangulation different; strangulation; four cases; string method ... See more keywords