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  2. Z-scan technique - Wikipedia

    en.wikipedia.org/wiki/Z-scan_technique

    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 ...

  3. Category:Nonlinear optics - Wikipedia

    en.wikipedia.org/wiki/Category:Nonlinear_optics

    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.

  4. Radioisotope renography - Wikipedia

    en.wikipedia.org/wiki/Radioisotope_renography

    A renogram, which may also be known as a MAG3 scan, allows a nuclear medicine physician or a radiologist to visualize the kidneys and learn more about how they are functioning. [1] MAG3 is an acronym for mercapto acetyl tri glycine , a compound that is chelated with a radioactive element – technetium-99m .

  5. Scanning acoustic microscope - Wikipedia

    en.wikipedia.org/wiki/Scanning_acoustic_microscope

    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.

  6. Talk:Z-scan technique - Wikipedia

    en.wikipedia.org/wiki/Talk:Z-scan_technique

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  7. Wikipedia:List of online newspaper archives - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:List_of_online...

    This is a list of online newspaper archives and some magazines and journals, including both free and pay wall blocked digital archives. Most are scanned from microfilm into pdf, gif or similar graphic formats and many of the graphic archives have been indexed into searchable text databases utilizing optical character recognition (OCR) technology.

  8. Optical coherence tomography - Wikipedia

    en.wikipedia.org/wiki/Optical_coherence_tomography

    A high-resolution spectral-domain OCT scan (3×3 mm) of a dry age-related macular degeneration eye showing geographic atrophy and drusen in macula on both cross-sectional and en face fly-through. Optical coherence tomography (OCT) is a high-resolution imaging technique with most of its applications in medicine and biology.

  9. DBSCAN - Wikipedia

    en.wikipedia.org/wiki/DBSCAN

    Density-based spatial clustering of applications with noise (DBSCAN) is a data clustering algorithm proposed by Martin Ester, Hans-Peter Kriegel, Jörg Sander, and Xiaowei Xu in 1996. [1]