Shrinking endoscopes with meta-optical fibers

Ultra-compact, agile endoscopes with a large field of view (FoV), long depth of field (DoF), and short rigid tip length are essential for developing minimally invasive operations and new experimental surgeries. As these fields ...

Study proposes achromatic metalens with varifocal performance

Metalenses, comprising one of the most prominent applications of metasurfaces, demonstrate promising abilities to replace traditional lenses. By manipulating the phase distribution of metalenses composed of appropriately ...

Liquid crystal integrated metalens for versatile color focus

The development of metasurfaces opened a horizon for the advance of planar optics. Among metadevices, the metalens has attracted widespread attention for practical applications in imaging and spectroscopy, as it provides ...

System to image the human eye corrects for chromatic aberrations

Researchers report a new imaging system that cancels the chromatic optical aberrations present in a specific person's eye, allowing for a more accurate assessment of vision and eye health. By taking pictures of the eye's ...

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