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In nonlinear optics z-scan technique is used to measure the non-linear index n 2 (Kerr nonlinearity) and the non-linear absorption coefficient Δα via the "closed" and "open" methods, respectively. As nonlinear absorption can affect the measurement of the non-linear index, the open method is typically used in conjunction with the closed method ...
Two-photon absorption can be measured by several techniques. Some of them are two-photon excited fluorescence (TPEF), [10] z-scan, self-diffraction [11] or nonlinear transmission (NLT). Pulsed lasers are most often used because two-photon absorption is a third-order nonlinear optical process, [12] and therefore is most efficient at very high ...
Nonlinear optics is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the polarization P responds nonlinearly to the electric field E of the light.
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In contrast, ZMap uses cyclic multiplicative groups, which allows ZMap to scan the same space roughly 1,300 times faster than Nmap. [6] The ZMap software takes every number from 1 to 2 32 -1 and creates an iterative formula that ensures that each of the possible 32-bit numbers is visited once in a pseudorandom order. [ 3 ]
The transducer is mounted on the z-axis of the SAM. It can be focused to a specific target layer located in a hard-to-access area by changing the z-position with respect to the sample under testing that is mechanically fixed. [6] The B-scan provides a vertical cross section of the sample with visualization of the depth information.
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Zinc finger and SCAN domain-containing protein 21 is a protein that in humans is encoded by the ZSCAN21 gene. [5] [6] [7] References