mode field diameter

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• Mode field diameter — In fiber optics, the mode field diameter (MFD) is an expression of distribution of the irradiance, i.e., the optical power per unit area, across the end face of a single mode fiber. For a Gaussian intensity (i.e. power density, W/m2) distribution …   Wikipedia

• Subwavelength-diameter optical fibre — A subwavelength diameter fibre wraps light around human hair. Subwavelength diameter optical fibre (SDF or SDOF) is an optical fibre whose diameter is less than the wavelength of the light being propagated through the fibre. An SDOF usually… …   Wikipedia

• Near and far field — This article is about the electromagnetic concept. For the mathematical, see Near field (mathematics). Antenna field regions for antennas that are shorter than the wavelength of the radiation they emit, such as the whip antenna of a citizen s… …   Wikipedia

• Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry …   Wikipedia

• Photoionization mode — A photoionization mode gives rise to a photoionization pattern, having very specific characteristics in terms of photoionization spatial distribution and density, as well as relative yields of photolytic species. A particular photoionization mode …   Wikipedia

• Near-field scanning optical microscope — Near field scanning optical microscopy (NSOM/SNOM) is a microscopic technique for nanostructure investigation that breaks the far field resolution limit by exploiting the properties of evanescent waves. This is done by placing the detector very… …   Wikipedia

• Effective mode volume — For an optical fiber, the effective mode volume is the square of the product of the diameter of the near field pattern and the sine of the radiation angle of the far field pattern. The diameter of the near field radiation pattern is defined here… …   Wikipedia

• Surface-wave-sustained mode — Plasmas that are excited by propagation of electromagnetic surface waves are called surface wave sustained. Surface wave plasma sources can be divided into two groups depending upon whether the plasma generates part of its own waveguide by… …   Wikipedia

• Core (optical fiber) — The structure of a typical single mode fiber. 1. Core 8 µm diameter 2. Cladding 125 µm dia. 3. Buffer 250 µm dia. 4. Jacket 400 µm dia …   Wikipedia

• Lichtwellenleiter — Kunststoff Lichtwellenleiter LWL Patchkabel konfektionier …   Deutsch Wikipedia

• MFD — On Wikipedia, MfD may refer to Wikipedia:Miscellany for deletion. MFD may refer to: Contents 1 Organizations 2 Computing …   Wikipedia