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Twisting Light by Nonlinear Photonic Crystals
Physical Review Letters, 2012We report the observation of nonlinear interactions in quadratic nonlinear crystals having a geometrically twisted susceptibility pattern. The quasi-angular-momentum of these crystals is imprinted on the interacting photons during the nonlinear process so that the total angular momentum is conserved.
Noa Voloch, Bloch +5 more
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Applications of Nonlinear Crystals
1991This chapter is devoted to applications of nonlinear crystals in nonlinear optical devices. It describes the generation of second and higher (up to sixth) optical harmonics of neodymium laser radiation, generation of optical harmonics of powerful wide-aperture neodymium glass laser radiation, generation of optical harmonics of other lasers (ruby, gas ...
Valentin G. Dmitriev +2 more
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1991
This chapter introduces the main concepts of the physics of nonlinear optical processes: three-wave interactions, phase matching and phase-matching angle, role of phase mismatch for the interaction of quasi-plane waves, group-velocity mismatch and interaction of ultrashort light pulses, optics of uniaxial and biaxial crystals, crystal symmetry and ...
Valentin G. Dmitriev +2 more
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This chapter introduces the main concepts of the physics of nonlinear optical processes: three-wave interactions, phase matching and phase-matching angle, role of phase mismatch for the interaction of quasi-plane waves, group-velocity mismatch and interaction of ultrashort light pulses, optics of uniaxial and biaxial crystals, crystal symmetry and ...
Valentin G. Dmitriev +2 more
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2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2023
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Nonlinear Dielectric Response of Plastic Crystals
2018This article summarizes ongoing experimental efforts on nonlinear dielectric spectroscopy on plastic crystals. In plastic crystals, the relevant dipolar orientational degrees of freedom are fixed on a crystalline lattice with perfect translational symmetry.
Lunkenheimer, Peter +2 more
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Nonlinear Control of Crystallization
2002In this chapter, we present two applications of the nonlinear control method proposed in Chapter 2 to continuous and batch crystallization systems. Low-dimensional approximations of the population balances are derived and used for nonlinear controller design.
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Nonlinear holography in 3D nonlinear photonic crystals
ODS 2023: Industrial Optical Devices and Systems, 2023openaire +1 more source