Results 31 to 40 of about 590,337 (295)

Sensitivity optimization of the one beam Z-scan technique and a Z-scan technique immune to nonlinear absorption

Optics Express, 2013
It is presented a criteria for selecting the optimum aperture radius for the one beam Z-scan technique (OBZT), based on the analysis of the transmittance of the aperture. It is also presented a modification to the OBZT by directly measuring the beam radius in the far field with a rotating disk, which allows to determine simultaneously the non-linear ...
José A, Dávila Pintle, Edmundo Reynoso, Lara, Marcelo D, Iturbe Castillo   +2 more
openaire   +2 more sources

Nonlinear optical studies of calcium tartrate crystals

Journal of Taibah University for Science, 2019
Calcium Tartrate crystals were synthesized using sol–gel technique. Linear optical studies of the crystals were carried out in the UV–Vis-NIR spectral range.
I. Rejeena, Vinoy Thomas, S. Mathew, Anit Elizabeth, P. Radhakrishnan, A. Mujeeb   +5 more
doaj   +1 more source

Two-photon cross-sections of the photosensitizers m-THPC and m-THPP in the 1.05–1.45μm range [PDF]

, 2014
The two-photon absorption of the photosensitizers 5,10,15,20-tetrakis(m-hydroxyphenyl) porphyrin and the corresponding chlorin has been studied in the near infrared (IR) range using open-aperture z-scan technique.
Haimberger, Theodore von, Hamed, Baidaa, Heyne, Karsten, Kozich, Valeri, Wiehe, Arno   +4 more
core   +1 more source

Volumetrically scanning the structure of stray-fields above grain-oriented electrical-steel using a variably angled TMR sensor [PDF]

, 2017
—a new versatile scanning hardware based on a Micromagnetics® STJ-020 MgO-based tunnelling magneto-resistance (TMR) sensor has been developed to volumetrically scan the thin boundary layer above a given sample.
Gibbs, Robert, Meydan, Turgut, Williams, Paul   +2 more
core   +2 more sources

Bi-directional top hat D-Scan: single beam accurate characterization of nonlinear waveguides

, 2017
The characterization of a third order nonlinear integrated waveguide is reported for the first time by means of a top-hat Dispersive-Scan (D-Scan) technique, a temporal analog of the top-hat Z-Scan.
Dubreuil, Nicolas, Serna, Samuel
core   +3 more sources

The energy calibration of LEP in the 1993 scan [PDF]

, 1995
This report summarizes the procedure for providing the absolute energy calibration of the LEP beams during the energy scan in 1993. The average beam energy around the LEP ring was measured in 25 calibrations with the resonant depolarization technique ...
Assmann, R W, Beuret, A, Billan, J, Billen, R, Blondel, A, Bobbink, Gerjan J, Bordry, Frederick, Burkhardt, H, Dehning, Bernd, Drees, A, Gascon, J, Grosse-Wiesmann, P, Grote, H, Hawkes, C M, Henrichsen, K N, Hofmann, A, Jacobsen, R, Jonker, M, Koratzinos, M, Koutchouk, Jean-Pierre, Miles, J, Myers, S, Peschardt, E, Placidi, Massimo, Plane, D, Quast, G, Renton, P B, Rolandi, Luigi, Schmidt, R, Strom, D, Vadon, M, Veenhof, R, Wachsmuth, H W, Wenninger, J, Wyatt, T R   +34 more
core   +1 more source

Third-order nonlinear optical properties of bismuth-borate glasses measured by conventional and thermally managed eclipse Z scan

, 2007
Third-order nonlinearity one order of magnitude larger than silica is measured in bismuth-borate glasses presenting a fast response (<200 fs). The results for the sign and magnitude of the nonlinearity were obtained using a combination of the eclipse ...
Carvalho, Isabel C.S., de Araújo, C.B., de Araújo, R.E., Falcão Filho, E.L., Gomes, A.S.L., Kazansky, Peter G., Mezzapesa, Francesco P., Rativa, Diego, Sakaguchi, Koichi   +8 more
core   +1 more source

Determination of photo-induced changes in linear optical coefficients by the Z-scan technique [PDF]

, 2009
We introduce a Z-scan technique as a tool to characterize small phase shift (<1 rad) and photodarkening, both effects induced inside photosensitive materials by light illumination.
G. Boudebs, K. Fedus
core   +4 more sources

Linear and Nonlinear Optical Properties of Anthocyanin Dye from Red Cabbage in Different pH Solutions

مجلة بغداد للعلوم, 2023
This article studied some linear and nonlinear optical characteristics of different pH solutions from anthocyanin dye extract at 180 oC from red cabbage. First, the linear spectral characteristics, including absorption and transmittance in the range 400-
Rajaa Nader, Slafa I. Ibrahim Ibrahim , Ali H. Al-Hamdani   +2 more
doaj   +1 more source

A Scanning Hall Probe Microscope for high resolution, large area, variable height Magnetic Field Imaging [PDF]

, 2016
International audienceWe present a Scanning Hall Probe Microscope operating in ambient conditions. One of the unique features of this microscope is the use of the same stepper motors for both sample positioning as well as scanning, which makes it ...
Dempsey N. M., Gorky Shaw, K. Hasselbach, N. M. Dempsey, R. B. G. Kramer   +4 more
core   +3 more sources