tailieunhanh - Nguyên tắc cơ bản của lượng tử ánh sáng P19

THEORY OF FOUR-WAVE MIXING NONLINEAR MEDIA DISPERSIVE NONLINEAR MEDIA OPTICAL SOLITONS Nicolaas Bloembergen (born 1920) has carried out pioneering studies in nonlinbar optics since the early 1960s. He shared the 1981 Nobel Prize with Arthur Schawlow. 737 Throughout the long history of optics, and | Fundamentals of Photonics Bahaa E. A. Saleh Malvin Carl Teich Copyright 1991 John Wiley Sons Inc. ISBNs 0-471-83965-5 Hardback 0-471-2-1374-8 Electronic CHAPTER 19 NONLINEAR OPTICS NONLINEAR OPTICAL MEDIA SECOND-ORDER NONLINEAR OPTICS A. Second-Harmonic Generation and Rectification B. The Electro-Optic Effect C. Three-Wave Mixing THIRD-ORDER NONLINEAR OPTICS A. Third-Harmonic Generation and Self-Phase Modulation B. Four-Wave Mixing C. Optical Phase Conjugation COUPLED-WAVE THEORY OF THREE-WAVE MIXING A. Second-Harmonic Generation B. Frequency Conversion C. Parametric Amplification and Oscillation COUPLED-WAVE THEORY OF FOUR-WAVE MIXING ANISOTROPIC NONLINEAR MEDIA DISPERSIVE NONLINEAR MEDIA OPTICAL SOLITONS Nicolaas Bloembergen born 1920 has carried out pioneering studies in nonlinear optics since the early 1960s. He shared the 1981 Nobel Prize with Arthur Schawlow. 737 Throughout the long history of optics and indeed until relatively recently it was thought that all optical media were linear. The assumption of linearity of the optical medium has far-reaching consequences The optical properties such as the refractive index and the absorption coefficient are independent of light intensity. The principle of superposition a fundamental tenet of classical optics as described in Sec. holds. The frequency of light cannot be altered by its passage through the medium. Light cannot interact with light two beams of light in the same region of a linear optical medium can have no effect on each other. Thus light cannot control light. The invention of the laser in 1960 enabled us to examine the behavior of light in optical materials at higher intensities than previously possible. Many of the experiments carried out made it clear that optical media do in fact exhibit nonlinear behavior as exemplified by the following observations The refractive index and consequently the speed of light in an optical medium does change with the light .

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