What is a Nanolens?
Nanolenses typically exhibit planospherical convex structures of dielectric material, with a submicron thickness of ∼10–1000 nm and base diameter D < 10 μm. In tandem with conventional optical microscopy, a nanolens in contact with the subject enables the visualization down to ∼50 nm.
What is a Hyperlens?
Recently, the hyperlens, which magnifies and converts evanescent waves into propagating waves, has emerged as a novel approach to far-field imaging. Here, we report the fabrication of a spherical hyperlens composed of alternating silver (Ag) and titanium oxide (TiO2) thin layers.
What are some applications for a Superlens?
Analysis of the diffraction limit
- The diffraction limit as restriction on resolution.
- Effects of negative index of refraction.
- Other studies concerning the perfect lens.
- Focusing beyond the diffraction limit with far-field time reversal.
- Sub-diffraction imaging in the far field.
- Nanohole array as a lens.
- Nanolens.
What is Nanoscopy used for?
Nanoscopy enables the direct study of interactions between proteins, DNA and RNA and, therefore, may have a key role in the development of genomics and proteomics, in studying the physiology of cells, and in understanding pathophysiological processes of defects in the formation of protein complexes , etc.
How does a diffractive lens work?
A: The Diffractive lens has a thin structure of rings on its surface, with different each ring having a tooth-like profile. Light going through the rings is delayed in a proportion to the height along the radius, creating a radial phase profile that is identical to that of a regular lens.
What are Metalenses used for?
Metalenses are a flat lens technology made by optical components that use metasurfaces to focus light. They can be used in optical applications that take advantage of the flat surface and reduced thickness, compared to classic, curved refractive lenses mainly used in optical devices today.
What is fluorescence Nanoscopy?
Fluorescence nanoscopy refers to the experimental techniques and analytical methods used for fluorescence imaging at a resolution higher than conventional, diffraction-limited, microscopy.
What is diffractive IOL?
• Diffractive multifocal IOLs intentionally induce diffraction so that the waves exiting the lens will have constructive interference at two or more distinct foci at different distances.
Do optics do diffractive?
DO (diffractive optics) lens elements enable telephoto lenses to be lighter and more compact while maintaining a high level of performance. Canon succeeded in creating the innovative DO lenses by bonding a precise diffraction grating to the surface of a glass lens.