Optical kerr effect spectroscopy
• Kerr Calculation Applet – Java applet, computes the Kerr angle of multilayered thin films • yeh-moke – Free software computes the Magneto-optic Kerr effect of multilayered thin films • MOKE Microscope – Magneto-Optical Kerr Effect Microscope [PDF: 3.2MB] WebKeywords: optical Kerr gate, nonlinear ellipse rotation, femtosecond time-resolved spectroscopy (Some figures may appear in colour only in the online journal) 1. Introduction An optical Kerr gate (OKG) technique has been developed ... to avoid the optical Kerr effect induced by the probe beam, the probe beam intensity is usually set at a very ...
Optical kerr effect spectroscopy
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WebDec 1, 2011 · Tata Institute of Fundamental Research Abstract and Figures An arrangement is described for performing magneto-optical Kerr effect (MOKE) spectroscopy in polar geometry with a conventional... WebTerahertz Kerr effect. The optical Kerr effect is a well-known phenomenon in which an electric field creates birefringence in a material. Researchers have now demonstrated this effect using single ...
WebJan 1, 2009 · Optical Kerr effect has found applications in silicon wave-guides [Stolen and Ashkin, 1973], or in spectroscopy of liquid materials [Zhong and Fourkas, 2008]. ... Experimental and... WebOct 1, 1993 · The complex polar Kerr effect spectra (Kerr rotation and Kerr ellipticity) of high-purity ferromagnetic nickel are reported in the spectral range 1.5–5.2 eV. Freshly evaporated high optical quality Ni films, 90 nm thick, magnetically saturated perpendicular to the film plane served as sample surfaces. New extended spectroscopic information ...
WebSpectroscopy uses the interaction of electromagnetic radiation with matter to characterize optical, thermal, mechanical and electronic properties of materials. ... have accessories to … WebSep 30, 2024 · In this work, we have developed resonant optical Kerr effect spectroscopy (ROKE), which is an analogue of optical Kerr effect spectroscopy that measures the reorientational relaxation of a dilute …
WebFeb 23, 2024 · We demonstrate that the magneto-optical Kerr effect at normal incidence in the terahertz (THz) frequency range is useful for evaluating carrier transport properties of particular layers of a p-n junction. Since a single p-type thin film only exhibits a small magneto-optical Kerr effect, magneto-optical Kerr spectroscopy cannot be used to …
WebThe following parameters were investigated: the spatial and temporal profiles of the laser pulses, the intensity of the exciting laser pulse, the length of the Kerr gate, the concentration of the sample solution, the relaxation time of the sample, the temperature, and the pair correlation factor. greenhead lane knoxville tnThe optical Kerr effect has also been observed to dynamically alter the mode-coupling properties in multimode fiber, a technique that has potential applications for all-optical switching mechanisms, nanophotonic systems and low-dimensional photo-sensors devices. See more The Kerr effect, also called the quadratic electro-optic (QEO) effect, is a change in the refractive index of a material in response to an applied electric field. The Kerr effect is distinct from the Pockels effect in … See more The optical Kerr effect, or AC Kerr effect is the case in which the electric field is due to the light itself. This causes a variation in index of refraction which is proportional to the local irradiance of the light. This refractive index variation is responsible for the See more • Jeffree cell, an early acousto-optic modulator • Filament propagation • Rapatronic camera, which used a Kerr cell to take sub-millisecond photographs of nuclear explosions See more The Kerr electro-optic effect, or DC Kerr effect, is the special case in which a slowly varying external electric field is applied by, for instance, a voltage on electrodes across the sample material. Under this influence, the sample becomes birefringent, with different indices of … See more The magneto-optic Kerr effect (MOKE) is the phenomenon that the light reflected from a magnetized material has a slightly rotated plane of … See more DC Kerr effect For a nonlinear material, the electric polarization field P will depend on the electric field E: where ε0 is the vacuum permittivity and χ is the n-th order … See more • Kerr cells in early television (Scroll down the page for several early articles on Kerr cells.) See more green headlights legalWebOct 17, 2014 · We have used the femtosecond Optical Kerr Effect spectroscopy for investigation of the dynamics of coherent phonons in pure and Pr 3+ doped YAG crystals. We have measured the signals at 12 temperatures ranging from 263 K to 373 K for dopant concentrations of 0.0, 0.9 and 1.2%. A considerable dependence of the signal on sample … flutter new projectWebOct 31, 2024 · Spectroscopic ellipsometry (SE) in combination with magneto-optical Kerr effect (MOKE) spectroscopy can provide significant information on the electronic … flutter new featuresWebApr 21, 2008 · Structural relaxation in the peptide model N-methylacetamide (NMA) is studied experimentally by ultrafast optical Kerr effect spectroscopy over the normal-liquid temperature range and compared to the relaxation measured in water at room temperature. It is seen that in both hydrogen-bonding liquids, beta relaxation is present, and in each … green headlights for saleWebApr 6, 2024 · Changes in the structural and solvation dynamics of a 15mer AT DNA duplex upon melting of the double-helix are observed by a combination of ultrafast two … flutter new project command lineWebThe principle and application of ultrafast optical Kerr effect (OKE) spectroscopy have been reviewed. This spectroscopy is shown to be very useful to investigate low frequency modes in disordered materials and the obtained data are directly comparable with frequency-domain light scattering spectroscopy. Experimental study to show the ... green headlights for hunting