Super-oscillation focusing lens based on continuous amplitude and binary phase modulation
نویسندگان
چکیده
منابع مشابه
Super-oscillatory focusing of circularly polarized light by ultra-long focal length planar lens based on binary amplitude-phase modulation
In traditional optics, the focal spot size of a conventional lens is restricted to the diffraction limit 0.5λ/NA, where λ is the wavelength in vacuum and NA is the numerical aperture of the lens. Recently, various sub-diffraction focusing optical devices have been demonstrated, but they usually have short focal length and high numerical aperture. Moreover, they always suffer the problem of huge...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2014
ISSN: 1094-4087
DOI: 10.1364/oe.22.022163