Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Kerr Nonlinearity"”.
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An investigation of giant Kerr nonlinearity
… of an atomic system exhibiting a giant Kerr nonlinearity. The atomic energy level scheme involves four energy levels. A three level A subsystem in the atom exhibits the effect of electromagnetically induced transparency (EIT), reducing the spontaneous emission noise. The fourth level …
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Topological solitons of the nonlinear Dirac equation in 2+1 dimensional space time
… model i.e. the nonlinear Dirac equation with Kerr nonlinearity. The (2 + 1) dimensional nonlinear Dirac equation with Kerr nonlinearity admits stationary vortex solutions as was shown in the work of Smirnova et al. Moreover, the (2+1) dimensional nonlinear Dirac equation with Kerr nonlinearity …
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Nonlinearity engineering with the Quarton
… and applications of a new technique we call "nonlinearity engineering" using a recent superconducting qubit, the Quarton. In traditional nonlinear optics, nonlinear effects are usually weak perturbations to linear interactions. Similarly, microwave quantum optics with superconducting circuits …
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Fully Integrated CMOS-compatible mode-locked lasers
… CMOS-compatible mode-locking element based on Kerr nonlinearity is demonstrated for 1550nm and 1900nm laser wavelengths. Demonstrated modulation depths for 1900nm and 1550nm mode-locking devices are 9% and 2.5% respectively. The work in this thesis presents the first-ever demonstration of …
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Interfacial Dynamics and Applications in Optofluidics
… pressure, light scattering, thermocapillarity, Kerr nonlinearity, and thermal effect. However, such nonlinear effects have yet to be thoroughly investigated and compared in the literature. In this study, we first investigate a micron-sized liquid spherical resonator and present an approximated …
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Discrete Nonlinear Wave Propagation In Kerr Nonlinear Media
… realization of discrete solitons in a Kerr nonlinear AlGaAs waveguide array by H. Eisenberg and coworkers in 1998. In this work a detailed experimental investigation of discrete nonlinear wave propagation and the interactions between beams, including discrete solitons, in discrete …
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The synergistic role of light and heat in liquid-based nanoparticle manipulation
… the effect is commonly described as an effective Kerr nonlinearity. To test this hypothesis, beam propagation experiments through a suspension of 40 nm plasmonic gold nanoparticles were carried out, and were found to be in agreement with previously reported results. To verify the nature of the …
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Ultra-Wideband Fibre-Optic Systems in the Nonlinear Regime
… are mainly limited by the power-dependent fibre nonlinearity which limits the capacity that can be achieved in such systems. This PhD thesis addresses the problem of maximising the information throughput from single- to multi-channel point-to-point transmission to optical networks. The first part …
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The Structure of Multipulse Solitons in the Generalised Nonlinear Schrödinger Equation
… the quartic and quadratic dispersions with the Kerr nonlinearity, and they come in infinite families with different signatures. We consider a stationary wave solution ansatz, where the optical pulse does not undergo a change in shape while propagating. This allows us to transform the quartic …
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Investigation of general-purpose computing on graphics processing units and its application to the finite element analysis of electromagnetic problems
… examples are presented to show the different Kerr effects observed through the third-order nonlinearity. With the acceleration using MPI+GPU under large cluster environments, the solution times for the various linear and nonlinear examples are significantly reduced.