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- \Delta \lambda \,} is the width of the range of wavelengths in the signal. In optical communications and optical coherence tomography (OCT), assuming...6 KB (790 words) - 18:51, 7 February 2024
- For an electromagnetic wave, the coherence time is the time over which a propagating wave (especially a laser or maser beam) may be considered coherent...2 KB (278 words) - 00:34, 16 September 2024
- Optical coherence tomography (OCT) is an imaging technique that uses interferometry with short-coherence-length light to obtain micrometer-level depth...86 KB (9,800 words) - 15:59, 14 October 2024
- Coherent diffraction imaging (section Coherence)maintain coherence until diffraction. It has been shown that the coherence width of the incident beam needs to be approximately twice the lateral width of the...29 KB (3,759 words) - 18:58, 26 September 2024
- its wavelength and coherence length. The coherence length determines the width of the correlogram, which relies on the spectral width of the light source...16 KB (2,319 words) - 04:23, 18 June 2024
- continues to decrease without bound. Both transverse and longitudinal coherence widths (packet sizes) of such high energy electrons in the lab may be orders...15 KB (1,864 words) - 17:22, 10 October 2023
- Superluminescent diode (section Coherence length)diodes with the low coherence of conventional light-emitting diodes. Its emission optical bandwidth, also described as full-width at half maximum, can...23 KB (3,153 words) - 18:37, 24 October 2024
- Bandwidth (redirect from Band width)convolution kernel used in statistics Graph bandwidth, in graph theory Coherence bandwidth, a frequency range over which a channel can be considered "flat"...1 KB (204 words) - 11:46, 28 January 2022
- the coherence is with respect to the phase of the atom's de Broglie wave. If an electron in a two level atomic system is excited by narrow line width coherent...7 KB (808 words) - 05:48, 9 October 2024
- Diffraction (section Coherence)correlated is called the coherence length. In order for interference to occur, the path length difference must be smaller than the coherence length. This is sometimes...50 KB (6,400 words) - 03:18, 9 September 2024
- Laser linewidth (section Passive resonator mode: Lorentzian linewidth, Q-factor, coherence time and length)are spatial coherence and spectral coherence. While spatial coherence is related to the beam divergence of the laser, spectral coherence is evaluated...33 KB (5,029 words) - 04:09, 31 July 2024
- Scherrer equation (section Coherence length)scales as σ 2 2 / a 3 {\displaystyle \sigma _{2}^{2}/a^{3}} , so the coherence length is approximately 1/FWHM for the first peak. B.D. Cullity & S.R...16 KB (3,248 words) - 21:02, 8 July 2024
- have high temporal coherence, which permits them to emit light with a very narrow frequency spectrum. Alternatively, temporal coherence can be used to produce...113 KB (12,648 words) - 23:01, 21 October 2024
- partial coherence factor, or σ {\displaystyle \sigma } . It also affects the pattern quality and hence the application of OPC. The coherence distance...16 KB (1,849 words) - 23:46, 21 July 2024
- progressively lower resolution representation of the previous. The height and width of each image, or level, in the mipmap is a factor of two smaller than the...11 KB (1,313 words) - 15:01, 24 August 2024
- significant undercutting of the photoresist pattern. This is essential when the width of the features to be defined is similar to or less than the thickness of...58 KB (6,445 words) - 02:12, 12 September 2024
- it is required that the differential pathlength is reduced below the coherence length of the light source. That can be only micrometers for white light...36 KB (4,357 words) - 17:10, 9 June 2024
- technique used to measure the coherence. These DFB fibre lasers are often used in sensing applications where extreme narrow line width is required. "The World's...9 KB (1,390 words) - 19:52, 28 October 2024
- beams of similar quality in terms of spatial coherence (a single-mode Gaussian beam) and long coherence length (however, since about 1990 semiconductor...14 KB (1,736 words) - 16:59, 28 October 2024
- Gaussian beam (section Evolving beam width)are determined by two parameters: the waist w0, which is a measure of the width of the beam at its narrowest point, and the position z relative to the waist...47 KB (6,956 words) - 12:32, 18 September 2024
- the effect of the electric radiation was to cause a severance and not a coherence, and hence such clumsy phrases as 'anticoherer' and 'self-decohering coherer'
- potent originality and force and beauty, in their substance the height and width of the reach of their spirit stand very evidently in the front rank among
- phase coherence. In a similar manner, phase coherence of proton precessions results during RF excitation in NMR and its the loss of this coherence which