Preface |
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xv | |
Acknowledgments |
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xvii | |
Contributors |
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xix | |
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1 | (36) |
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1 | (3) |
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1.1.1 Nematic Liquid Crystals |
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1 | (2) |
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1.1.2 Nonlinear Optics and Solitons |
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3 | (1) |
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1.1.3 Initial Results on Light Self-Focusing in Liquid Crystals |
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3 | (1) |
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4 | (9) |
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1.2.1 Scalar Perturbative Model |
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5 | (4) |
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1.2.2 Anisotropic Perturbative Model |
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9 | (4) |
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1.3 Numerical Simulations |
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13 | (4) |
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13 | (1) |
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14 | (3) |
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1.4 Experimental Observations |
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17 | (14) |
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1.4.1 Nematicon-Nematicon Interactions |
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22 | (4) |
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1.4.2 Modulational Instability |
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26 | (5) |
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31 | (6) |
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33 | (4) |
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Chapter 2 Features of Strongly Nonlocal Spatial Solitons |
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37 | (34) |
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37 | (1) |
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2.2 Phenomenological Theory of Strongly Nonlocal Spatial Solitons |
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38 | (11) |
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2.2.1 The Nonlinearly Induced Refractive Index Change of Materials |
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38 | (1) |
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2.2.2 From the Nonlocal Nonlinear Schrodinger Equation to the Snyder-Mitchell Model |
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39 | (3) |
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2.2.3 An Accessible Soliton of the Snyder-Mitchell Model |
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42 | (3) |
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2.2.4 Breather and Soliton Clusters of the Snyder-Mitchell Model |
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45 | (1) |
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2.2.5 Complex-Variable-Function Gaussian Breathers and Solitons |
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46 | (1) |
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2.2.6 Self-Induced Fractional Fourier Transform |
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47 | (2) |
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2.3 Nonlocal Spatial Solitons in Nematic Liquid Crystals |
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49 | (12) |
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2.3.1 Voltage-Controllable Characteristic Length of NLC |
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50 | (2) |
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2.3.2 Nematicons as Strongly Nonlocal Spatial Solitons |
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52 | (2) |
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2.3.3 Nematicon-Nematicon Interactions |
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54 | (7) |
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61 | (10) |
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Appendix 2.A Proof of the Equivalence of the Snyder-Mitchell Model (Eq. 2.16) and the Strongly Nonlocal Model (Eq. 2.11) |
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61 | (1) |
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Appendix 2.B Perturbative Solution for a Single Soliton of the NNLSE (Eq. 2.4) in NLC |
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62 | (4) |
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66 | (5) |
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Chapter 3 Theoretical Approaches to Nonlinear Wave Evolution in Higher Dimensions |
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71 | (40) |
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3.1 Simple Example of Multiple Scales Analysis |
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71 | (6) |
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3.2 Survey of Perturbation Methods for Solitary Waves |
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77 | (4) |
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3.3 Linearized Perturbation Theory for Nonlinear Schrodinger Equation |
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81 | (2) |
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3.4 Modulation Theory: Nonlinear Schrodinger Equation |
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83 | (5) |
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88 | (3) |
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3.6 Solitary Waves in Nematic Liquid Crystals: Nematicons |
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91 | (5) |
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3.7 Radiation Loss for The Nematicon Equations |
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96 | (5) |
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3.8 Choice of Trial Function |
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101 | (4) |
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105 | (6) |
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106 | (1) |
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Appendix 3.B Shelf Radius |
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107 | (1) |
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108 | (3) |
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Chapter 4 Soliton Families in Strongly Nonlocal Media |
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111 | (28) |
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111 | (1) |
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112 | (3) |
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112 | (1) |
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4.2.2 Nonlocality Through Response Function |
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113 | (2) |
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4.3 Soliton Families in Strongly Nonlocal Nonlinear Media |
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115 | (18) |
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4.3.1 One-Dimensional Hermite-Gaussian Spatial Solitons |
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115 | (1) |
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4.3.2 Two-Dimensional Laguerre-Gaussian Soliton Families |
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116 | (2) |
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4.3.3 Accessible Solitons in the General Model of Beam Propagation in NLC |
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118 | (7) |
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4.3.4 Two-Dimensional Self-Similar Hermite-Gaussian Spatial Solitons |
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125 | (1) |
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4.3.5 Two-Dimensional Whittaker Solitons |
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126 | (7) |
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133 | (6) |
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135 | (4) |
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Chapter 5 External Control of Nematicon Paths |
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139 | (20) |
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139 | (1) |
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140 | (2) |
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5.3 Nematicon Control with External Light Beams |
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142 | (5) |
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5.3.1 Interaction with Circular Spots |
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143 | (2) |
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5.3.2 Dielectric Interfaces |
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145 | (1) |
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146 | (1) |
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5.4 Voltage Control of Nematicon Walk-Off |
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147 | (5) |
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5.4.1 Out-of-Plane Steering of Nematicons |
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147 | (2) |
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5.4.2 In-Plane Steering of Nematicon |
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149 | (3) |
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5.5 Voltage-Defined Interfaces |
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152 | (4) |
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156 | (3) |
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156 | (3) |
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Chapter 6 Dynamics of Optical Solitons in Bias-Free Nematic Liquid Crystals |
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159 | (18) |
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159 | (1) |
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159 | (1) |
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6.3 From One to Two Nematicons |
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160 | (2) |
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6.4 Counter-Propagating Nematicons |
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162 | (3) |
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6.5 Interaction of Nematicons with Curved Surfaces |
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165 | (2) |
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6.6 Multimode Nematicon-Induced Waveguides |
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167 | (3) |
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6.7 Dipole Azimuthons and Charge-Flipping |
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170 | (2) |
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172 | (5) |
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173 | (4) |
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Chapter 7 Interaction of Nematicons and Nematicon Clusters |
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177 | (32) |
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Catherine Garcia-Reimbert |
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177 | (2) |
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7.2 Gravitation of Nematicons |
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179 | (5) |
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7.3 In-Plane Interaction of Two-Color Nematicons |
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184 | (6) |
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7.4 Multidimensional Clusters |
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190 | (9) |
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7.5 Vortex Cluster Interactions |
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199 | (6) |
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205 | (4) |
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206 | (1) |
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206 | (3) |
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Chapter 8 Nematicons in Light Valves |
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209 | (24) |
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209 | (1) |
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8.2 Reorientational Kerr Effect and Soliton Formation in Nematic Liquid Crystals |
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210 | (2) |
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8.2.1 Optically Induced Reorientational Nonlinearity |
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211 | (1) |
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8.2.2 Spatial Solitons in Nematic Liquid Crystals |
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211 | (1) |
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8.3 Liquid Crystal Light Valves |
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212 | (4) |
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8.3.1 Cell Structure and Working Principle |
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213 | (2) |
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8.3.2 Optical Addressing in Transverse Configurations |
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215 | (1) |
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8.4 Spatial Solitons in Light Valves |
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216 | (4) |
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8.4.1 Stable Nematicons: Self-Guided Propagation in the Longitudinal Direction |
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216 | (2) |
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8.4.2 Tuning the Soliton Walk-Off |
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218 | (2) |
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8.5 Soliton Propagation in 3D Anisotropic Media: Model and Experiment |
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220 | (4) |
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8.5.1 Optical Control of Nematicon Trajectories |
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224 | (1) |
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8.6 Soliton Gating and Switching by External Beams |
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224 | (3) |
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8.7 Conclusions and Perspectives |
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227 | (6) |
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229 | (4) |
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Chapter 9 Propagation of Light Confined via Thermo-Optical Effect in Nematic Liquid Crystals |
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233 | (22) |
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233 | (2) |
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9.2 First Observation in NLC |
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235 | (5) |
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9.3 Characterization and Nonlocality Measurement |
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240 | (6) |
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9.4 Thermal Versus Orientational Self-Waveguides |
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246 | (2) |
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248 | (2) |
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248 | (1) |
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9.5.2 Fluorescence Recovery |
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249 | (1) |
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250 | (5) |
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252 | (3) |
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Chapter 10 Discrete Light Propagation in Arrays of Liquid Crystalline Waveguides |
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255 | (24) |
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255 | (1) |
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256 | (2) |
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10.3 Waveguide Arrays in Nematic Liquid Crystals |
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258 | (5) |
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10.4 Discrete Diffraction and Discrete Solitons |
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263 | (2) |
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10.5 Optical Multiband Vector Breathers |
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265 | (2) |
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10.6 Nonlinear Angular Steering |
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267 | (1) |
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10.7 Landau-Zener Tunneling |
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268 | (2) |
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270 | (2) |
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272 | (7) |
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273 | (6) |
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Chapter 11 Power-Dependent Nematicon Self-Routing |
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279 | (30) |
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279 | (1) |
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11.2 Nematicons: Governing Equations |
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280 | (7) |
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11.2.1 Perturbative Regime |
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282 | (2) |
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11.2.2 Highly Nonlinear Regime |
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284 | (1) |
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11.2.3 Simplified (1 + 1)D Model in a Planar Cell |
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285 | (2) |
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11.3 Single-Hump Nematicon Profiles |
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287 | (3) |
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11.3.1 (2 + 1)D Complete Model |
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288 | (1) |
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11.3.2 (1 + 1)D Simplified Model |
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289 | (1) |
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11.4 Actual Experiments: Role of Losses |
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290 | (3) |
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11.4.1 BPM (1 + 1)D Simulations |
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291 | (1) |
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292 | (1) |
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11.5 Nematicon Self-Steering in Dye-Doped NLC |
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293 | (5) |
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298 | (4) |
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11.7 Nematicon Self-Steering Through Interaction with Linear Inhomogeneities |
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302 | (3) |
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11.7.1 Interfaces: Goos-Hanchen Shift |
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303 | (1) |
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11.7.2 Finite-Size Defects: Nematicon Self-Escape |
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304 | (1) |
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305 | (4) |
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306 | (3) |
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Chapter 12 Twisted and Chiral Nematicons |
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309 | (18) |
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309 | (1) |
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12.2 Chiral and Twisted Nematics |
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310 | (2) |
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312 | (2) |
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12.4 Experimental Results |
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314 | (7) |
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12.4.1 Nematicons in a Single Layer |
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314 | (1) |
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12.4.2 Asymmetric Configuration |
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315 | (2) |
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12.4.3 Multilayer Propagation |
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317 | (1) |
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12.4.4 Influence of an External Electric Field |
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317 | (2) |
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12.4.5 Guiding Light by Light |
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319 | (1) |
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12.4.6 Nematicon Interaction |
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319 | (2) |
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12.5 Discrete Diffraction |
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321 | (2) |
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323 | (4) |
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323 | (4) |
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Chapter 13 Time Dependence of Spatial Solitons in Nematic Liquid Crystals |
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327 | (20) |
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327 | (1) |
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13.2 Temporal Behavior of Different Nonlinearities and Governing Equations |
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328 | (5) |
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13.2.1 Reorientational Nonlinearity |
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328 | (3) |
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13.2.2 Thermal Nonlinearity |
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331 | (2) |
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13.2.3 Other Nonlinearities |
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333 | (1) |
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13.3 Formation of Reorientational Solitons |
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333 | (11) |
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13.3.1 Bias Voltage Switching Time |
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334 | (2) |
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13.3.2 Soliton Formation Time |
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336 | (1) |
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13.3.3 Experimental Observation of Soliton Formation |
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337 | (4) |
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13.3.4 Influence of Flow Effects |
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341 | (3) |
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344 | (3) |
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344 | (3) |
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Chapter 14 Spatiotemporal Dynamics and Light Bullets in Nematic Liquid Crystals |
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347 | (14) |
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347 | (2) |
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14.1.1 (2 + 1 + 1)D Nonlinear Wave Propagation in Kerr Media |
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348 | (1) |
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14.2 Optical Propagation Under Multiple Nonlinear Contributions |
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349 | (2) |
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14.2.1 Multiple Nonlinearities and Space-Time Decoupling of the Nonlinear Dynamics |
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349 | (1) |
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14.2.2 Suitable Excitation Conditions |
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350 | (1) |
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14.3 Accessible Light Bullets |
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351 | (4) |
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14.3.1 From Nematicons to Spatiotemporal Solitons |
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351 | (2) |
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14.3.2 Experimental Conditions for Accessible Bullets Observation |
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353 | (2) |
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14.4 Temporal Modulation Instability in Nematicons |
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355 | (1) |
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14.5 Soliton-Enhanced Frequency Conversion |
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355 | (2) |
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357 | (4) |
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358 | (3) |
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Chapter 15 Vortices in Nematic Liquid Crystals |
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361 | (30) |
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361 | (3) |
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15.2 Stabilization of Vortices in Nonlocal, Nonlinear Media |
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364 | (9) |
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15.3 Vortex in a Bounded Cell |
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373 | (5) |
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15.4 Stabilization of Vortices by Vortex-Beam Interaction |
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378 | (4) |
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15.5 Azimuthally Dependent Vortices |
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382 | (5) |
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387 | (4) |
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389 | (2) |
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Chapter 16 Dispersive Shock Waves in Reorientational and Other Optical Media |
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391 | (20) |
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391 | (1) |
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16.2 Governing Equations and Modulational Instability |
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392 | (2) |
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16.3 Existing Experimental and Numerical Results |
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394 | (2) |
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16.4 Analytical Solutions for Defocusing Equations |
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396 | (2) |
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16.5 Analytical Solutions for Focusing Equations |
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398 | (8) |
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16.5.1 The 1 + 1 Dimensional Semianalytical Soliton |
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400 | (2) |
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16.5.2 Uniform Soliton Theory |
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402 | (1) |
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16.5.3 Comparisons with Numerical Solutions |
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403 | (3) |
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406 | (5) |
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407 | (4) |
Index |
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411 | |