Results 21 to 30 of about 7,579,363 (303)
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 +2 more
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Spectral Domain Z-scan Technique
, 2020 Characterizing the nonlinear optical properties of various materials plays a prerequisite role in nonlinear optics. Among different methods, the well-known Z-scan technique and the modified versions have been recognized as a simple and accurate method for measuring both the real and imaginary parts of the nonlinear refractive index.
Zeng, Xi +4 more
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AIP Advances, 2020 Hybrid perovskites have been investigated for various potential applications because of their tunable optical properties. In this paper, we report the synthesis of quantum dots (QDs) of two-dimensional (2D) Ruddlesden–Popper (RP) hybrid perovskite using ...
Sreekanth J. Varma +5 more
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Frontiers in Physics, 2022 We report herein results on the third-order non-linear optical (NLO) properties of four structurally unconstrained green fluorescence protein (GFP) chromophores, namely, 1, 2, 3, and 4.
Md Soif Ahmed +6 more
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Chopper z-scan technique for elliptic Gaussian beams
Optics Express, 2016 This paper reports an improvement to the chopper z-scan technique for elliptic Gaussian beams. This improvement results in a higher sensitivity by measuring the ratio of eclipsing time to rotating period (duty cycle) of a chopper that eclipses the beam along the main axis.
J A, Dávila-Pintle +2 more
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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 +5 more
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Investigating the effects of intermolecular interactions on nonlinear optical properties of binary mixtures with high repetition rate femtosecond laser pulses [PDF]
PeerJ Physical Chemistry, 2022 Measurements of nonlinear optical (NLO) properties of different binary mixtures having carbon disulfide (CS2) as the common component, namely CS2-acetone, CS2-cyclopentanone, CS2-toluene, and CS2-carbon tetrachloride (CCl4), are carried out by using the ...
Rahul Kumar Gupta +4 more
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Dual-arm Z-scan technique to extract dilute solute nonlinearities from solution measurements [PDF]
, 2012 We present a technique in which small solute nonlinearities may be extracted from large solvent signals by performing simultaneous Z-scans on two samples (solvent and solution).
Webster, Scott +8 more
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White-light continuum Z-scan technique for nonlinear materials characterization
Optics Express, 2004 We present a technique for rapid characterization of degenerate nonlinear absorption and refraction spectra using a femtosecond white-light continuum (WLC) pulse to perform Z-scans. The spectral components of the WLC source are temporally and spatially dispersed to minimize nondegenerate two-photon absorption (2PA) processes.
Balu, Mihaela +3 more
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EZ-scan: Single beam measurement technique for thin-film nonlinearities
, 1994 The EZ-scan, an improved Z-scan technique, shows a sensitivity for measuring nonlinearly induced wavefront distortion of ≈Λ/104. We show that the nonlinear refraction and nonlinear absorption coeficients can be determined separately by a single EZ-scan ...
Xia, T., Sheik-Bahae, M., Wang, Z.
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