Sumários
NONLINEAR OPTICS
12 Novembro 2019, 09:00 • José Manuel Rebordão
NON-LINEAR OPTICS
2nd order phenomena: frequency conversion, optical parametric amplification and oscillation, Spontaneous Parametric Down Conversion (and generation of entangled photons).
Phase matching: energy and momentum conservation in dispersive materials; using uniaxial materials for SHG. Overview of types of phase matching, in relation to the polarization of the signal, idler and pump waves.
Basics of coupled wave theory and overview of results for 2nd order nonlinear phenomena.
Third order materials and nonlinear optical effects: typical values of the nonlinear coefficient; third harmonic generation; self-phase modulation, Kerr effect, filamentation.
Presentation by Luís Neves: Free Electron Lasers
NEXT CLASS
Spectral broadening and supercontinuum. Four-wave missing. Phase conjugation.
Presentation by Francisco Costa.
BIBLIOGRAPHY
Saleh B.E.A, Fundamentals of Photonics, Caps.5, 20, 21
Fotonica baseada em Fibras ópticas
11 Novembro 2019, 15:00 • David de Castro Alves
Apresentação e familiarização com o equipamento de fusão de fibras ópticas
Fotonica baseada em Fibras ópticas
11 Novembro 2019, 14:00 • David de Castro Alves
Apresentação e familiarização com o equipamento de fusão de fibras ópticas
Nonlinear optics
5 Novembro 2019, 09:00 • José Manuel Rebordão
NON-LINEAR OPTICS
Electromagnetic description of materials – a review.
Non-linear dependence of P(E). Nonlinear wave equation, source term. Brief mention to the Born approximation.
2nd order materials: Second Harmonic Generation, Rectification; sum and difference of frequencies.
Interaction of a second order material with a monochromatic wave (with or without a static term), and with two monochromatic waves. Electrooptics in the context of nonlinear optics.
Introduction to phase matching, in relation to the conservation laws of energy and linear momentum.
Examples.
Presentation by Andreia Domingues: Chirped Pulse Amplification
NEXT CLASS
Presentation by Luís Neves: Optical Qubits
BIBLIOGRAPHY
Saleh B.E.A, Fundamentals of Photonics, Caps.5, 20, 21
Modulador Acústico-Óptico
4 Novembro 2019, 15:00 • David de Castro Alves