Home Optics • Beam Shaping and Control with Nonlinear Optics by George I. Stegeman (auth.), F. Kajzar, R. Reinisch (eds.)

Beam Shaping and Control with Nonlinear Optics by George I. Stegeman (auth.), F. Kajzar, R. Reinisch (eds.)

By George I. Stegeman (auth.), F. Kajzar, R. Reinisch (eds.)

The box of nonlinear optics, which has gone through a really quick improvement because the discovery of lasers within the early sixties, remains to be an lively and quickly constructing - seek region. The curiosity is principally as a result of the power purposes of nonlinear optics: - rectly in telecommunications for prime price facts transmission, picture processing and popularity or ultimately from the potential of acquiring huge wavelength diversity tuneable lasers for purposes in undefined, drugs, biology, information garage and retrieval, and so on. New phenomena and fabrics proceed to seem usually, renewing the sphere. This has confirmed to be very true during the last 5 years. New fabrics comparable to organics were constructed with very huge moment- and third-order nonlinear optical responses. Imp- tant advancements within the parts of photorefractivity, all optical phenomena, frequency conv- sion and electro-optics were saw. In parallel, a couple of new phenomena were stated, a few of them hard the formerly held ideas. for instance, solitons in response to second-order nonlinearities were saw in photorefractive fabrics and frequency doubling crystals, destroying the belief that 3rd order nonlinearities are - quired for his or her iteration and propagation. New methods of constructing and manipulating nonl- ear optical fabrics were constructed. An instance is the construction of hugely nonlinear (second-order lively) polymers by means of static electrical box, photo-assisted or all-optical poling. Nonlinear optics consists of, via definition, the manufactured from electromagnetic fields. As a con- quence, it ends up in the beam control.

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Bauer, M. I. Stegeman, M. Ahlheim, M. Stahelin, B. Zysset, F. Lehr, M. Diemeer and R. Flipse, “Polymer Waveguide for Modal Dispersion Phase Matched Second-Harmonic Generation”, Appl. Phys. , 70,3347-9 (1997) 11. M. I. Stegeman, M. Diemeer, C. Flipse and G. Mohlmann, “Modal Dispersion Phase-Matching over 7 mm Length in Overdamped Polymeric Channel Waveguides”, Appl. Phys. , 69:4139-41 (1997) 12. M. A. H. L. Byer, "Quasi-phasematched second harmonic generation", IEEE, J. Quant. , 28, 2631-54 (1992); T.

U. Kang, W. I. Stegeman, G. Baker, J. Meth and S. Etemad, "Large Purely Refractive Nonlinear Index of Single Crystal P-Toluene Sulfonate (PTS) at 1600 nm", Electron. , 30:447-8 (1994) 44. Y. Kim, M. Sundheimer, A. I. H. R. Mohlmann, “Third order nonlinearity of DANS waveguides at 1319 nm”, Appl. Phys. , 63, 290-2 (1993). 45. H. Kanbara, H. Kobayashi, K. Kubodera, T. Kurihara and T. Kaino, “Optical Kerr Shutter Using Organic Nonlinear Optical Materials in Capillary Waveguides”, IEEE Phot. Techn.

The straight line is theory showing the E g–4 dependence. It is seen that the scaling law holds over a 5 ordersof-magnitude variation in the modulus of n2 . 532 µm have different signs, both measurements are consistent with the scaling law. More recent data on a series of UV transmitting materials at the harmonics of the Nd:YAG laser are shown in Fig. 25 We next describe a few of the experimental techniques used to measure ∆α and ∆ n from which the physical processes can be determined. Adding to the complexity of analysis, Eqs.

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