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2. Diffraction-limited system - Wikipedia

   en.wikipedia.org/wiki/Diffraction-limited_system

   In optics, any optical instrument or system – a microscope, telescope, or camera – has a principal limit to its resolution due to the physics of diffraction. An optical instrument is said to be diffraction-limited if it has reached this limit of resolution performance. Other factors may affect an optical system's performance, such as lens ...

3. Optical microscope - Wikipedia

   en.wikipedia.org/wiki/Optical_microscope

   Tip-enhanced Raman microscope, is a variant of optical microscope based on tip-enhanced Raman spectroscopy, without traditional wavelength-based resolution limits. [ 5 ] [ 6 ] This microscope primarily realized on the scanning-probe microscope platforms using all optical tools.

4. Near-field scanning optical microscope - Wikipedia

   en.wikipedia.org/wiki/Near-field_scanning...

   Near-field scanning optical microscopy (NSOM) or scanning near-field optical microscopy (SNOM) is a microscopy technique for nanostructure investigation that breaks the far field resolution limit by exploiting the properties of evanescent waves. In SNOM, the excitation laser light is focused through an aperture with a diameter smaller than the ...

5. Optical resolution - Wikipedia

   en.wikipedia.org/wiki/Optical_resolution

   Optical resolution describes the ... Also common in the microscopy literature is a formula ... or a moving optical system to expose it. These limit the speed at which ...

6. Super-resolution microscopy - Wikipedia

   en.wikipedia.org/wiki/Super-resolution_microscopy

   Super-resolution microscopy is a series of techniques in optical microscopy that allow such images to have resolutions higher than those imposed by the diffraction limit, [1][2] which is due to the diffraction of light. [3] Super-resolution imaging techniques rely on the near-field (photon-tunneling microscopy [4] as well as those that use the ...

7. Microscopy - Wikipedia

   en.wikipedia.org/wiki/Microscopy

   There is a diffraction-limited resolution depending on incident wavelength; in visible range, the resolution of optical microscopy is limited to approximately 0.2 micrometres (see: microscope) and the practical magnification limit to ~1500x.

8. Near-field optics - Wikipedia

   en.wikipedia.org/wiki/Near-field_optics

   The limit of optical resolution in a conventional microscope, the so-called diffraction limit, is in the order of half the wavelength of the light used to image.Thus, when imaging at visible wavelengths, the smallest resolvable features are several hundred nanometers in size (although point-like sources, such as quantum dots, can be resolved quite readily).

9. Superlens - Wikipedia

   en.wikipedia.org/wiki/Superlens

   Objects were imaged as small as 40 nm across. In 2005 the imaging resolution limit for optical microscopes was at about one tenth the diameter of a red blood cell. With the silver superlens this results in a resolution of one hundredth of the diameter of a red blood cell. [56]