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Liquid Crystals
Iam-Choon Khoo (Author)
9781119705826, Wiley
Hardback, published 21 January 2022
416 pages
1 x 1 x 1 cm, 0.454 kg
"Khoo's book is an exceptional resource that comprehensively explores the fascinating world of its namesake. As with previous editions, this meticulously updated and expanded edition delves deep into both fundamental principles and the myriad applications of these unique materials, making it a useful text for students, researchers, and engineers in the field. This third edition brings the book up to date with the latest advancements in liquid crystal research. New topics for this edition includes photonic crystals, metamaterials, ultrafast nonlinear optics, and fabrication techniques for cholesteric and blue-phase liquid crystals."
—Ryan Aguinaldo, IEEE Photonics Newsroom Book Reviews Editor
The latest edition of the leading resource on the properties and applications of liquid crystals In the newly revised Third Edition of Liquid Crystals, Professor Iam Choon Khoo delivers a comprehensive treatment of the fundamentals and applied aspects of optical physics, light scattering, electro-optics, and non-linear optics of liquid crystals. The book's opening chapters include coverage of the foundational physics and optical properties of liquid crystals and lead to more advanced content on the display, photonics and nonlinear optics applications of liquid crystals. New topics, including photonic crystals, metamaterials, ultrafast nonlinear optics, and fabrication methods for massive cholesteric and blue phase liquid crystals are discussed at length. Analytical methods and experimental observations of nonlinear light propagation through liquid crystalline and anisotropic materials and devices are also discussed. Liquid Crystals offers an insightful and unique treatment of the nonlinear optics of liquid crystals. New and expanded sections round out this new edition and add to the most up-to-date resource on this topic available today. The book also includes: The latest edition of Liquid Crystals is an indispensable resource for graduate students, professors, research scientists and engineers in industrial or government laboratories. It's also an ideal reference for anyone seeking a one-stop textbook with complete coverage of the optical, electro-optical, and non-linear optical properties and processes of liquid crystals.
Preface xiii Chapter 1. Introduction to Liquid Crystals 1 Chapter 2. Order Parameter, Phase Transition, and Free Energies 29 Chapter 3. Nematic Liquid Crystals 44 Chapter 4. Cholesteric, Smectic, and Ferroelectric Liquid Crystals 73 Chapter 5. Light Scattering 115 Chapter 6. Liquid Crystals Optics and Electro-optics 142 Chapter 7. Optical Propagation in Anisotropic Materials 175 Chapter 8. Laser-induced Reorientation Nonlinear Optical Effects 203 Chapter 9. Thermal, Density, Lattice Distortion Optical Nonlinearities in Nematic, Cholesteric, and Blue-phase Liquid Crystals 241 Chapter 10. Electronic Optical Nonlinearities 275 Chapter 11. Nonlinear Optics 302 Chapter 12. Nonlinear Optical Processes Observed in Liquid Crystals 348 References 390
1.1. Molecular Structures and Chemical Compositions 1
1.2. Optical Properties 3
1.3. Lyotropic, Polymeric, and Thermotropic Liquid Crystals 6
1.4. Mixtures, Polymer-dispersed, and Dye-doped Liquid Crystals 11
1.5. Liquid Crystal Cells Fabrication 16
2.1. Basic Concepts 29
2.2. Molecular Interactions and Phase Transitions 33
2.3. Molecular Theories and Results for the Liquid Crystalline Phase 34
2.4. Isotropic Phase of Liquid Crystals 39
3.1. Introduction 44
3.2. Elastic Continuum Theory 44
3.3. Dielectric Constants and Refractive Indices 49
3.4. Optical Dielectric Constants and Refractive Indices 53
3.5. Flows and Hydrodynamics 60
3.6. Field-induced Director Axis Reorientation Effects 67
4.1. Cholesteric Liquid Crystals 73
4.2. Optical Properties of Cholesterics 79
4.3. Cholesteric Blue Phase Liquid Crystals 97
4.4. Smectic and Ferroelectric Liquid Crystals: A Brief Survey 100
5.1. Introduction 115
5.2. Electromagnetic Formalism of Light Scattering in Liquid Crystals 115
5.3. Scattering From Director Axis Fluctuations in Nematic Liquid Crystals 118
5.4. Light Scattering in the Isotropic Phase of Liquid Crystals 122
5.5. Temperature, Wavelength, and Cell Geometry Effects on Scattering 125
5.6. Spectrum of Light and Orientation Fluctuation Dynamics 127
5.7. Raman Scatterings 129
5.8. Brillouin and Rayleigh Scatterings 133
5.9. A Brief Introduction to Nonlinear Light Scattering 138
6.1. Introduction 142
6.2. Review of Electro-Optics of Anisotropic and Birefringent Crystals 143
6.3. Electro-Optics of Nematic Liquid Crystals 149
6.4. Nematic Liquid Crystal Switches for Display Application 156
6.5. Electro-Optical Effects in Other Phases of Liquid Crystals 159
6.6. Non-Display Applications of Liquid Crystals 163
7.1. Electromagnetic Formalisms for Optical Propagation 175
7.2. Polarized Light Propagation in Liquid Crystal Display Panel 185
7.3. Extended Jones Matrix Method 193
7.4. Finite-difference Time-domain technique 196
7.5. Nonlinear Light Propagation in Liquid Crystals – a First Look 197
7.6. Systems of Units 198
8.1. Introduction 203
8.2. Laser-Induced Molecular Reorientations in the Isotropic Phase 204
8.3. Molecular Reorientations in the Nematic Phase 212
8.4. Nematic Phase Reorientation Dynamics 219
8.5. Laser-Induced Director Axis Realignment in Dye-Doped Liquid Crystals 225
8.6. DC Field Aided Optically Induced Nonlinear Optical Effects in Liquid Crystals – Photorefractivity 226
8.7. Reorientation in Other Phases of Pristine (Undoped) Liquid Crystals 234
9.1. Introduction 241
9.2. Electrostriction and Flows in Non-Absorbing Liquid Crystals –a General Overview 242
9.3. Laser-Induced Density and Temperature Modulations in Liquid Crystals 245
9.4. Optical Nonlinearities of Nematic Liquid Crystals 254
9.5. Coupled Nonlinear Optical Effects in Nematic Liquid Crystals 260
9.6. Nonlinear Optical Responses of Cholesteric Blue-Phase Liquid Crystals 266
10.1. Introduction to Quantum Mechanical Treatment of Molecules 275
10.2. Density Matrix Formalism for Optical Induced Molecular Electronic Polarizabilities 278
10.3. Linear and Nonlinear Electronic Susceptibilities 282
10.4. Intensity-Dependent Refractive Index Change and nonlinear Absorption 296
11.1. Introduction 302
11.2. Coupled Maxwell Wave Equations 308
11.3. Nonlinear Optical Phenomena 310
11.4. Stimulated Scatterings 328
11.5. Ultrafast Laser Pulse Self-Action Effects in Cholesteric Liquid Crystals 342
12.1. Self-Action Nonlinear Optical Processes 348
12.2. Optical Wave Mixings 358
12.3. Liquid Crystals for All-Optical Image Processing 369
12.4. Harmonic Generations and Sum-Frequency Spectroscopy 374
12.5. Optical Switching 37512.6. Nonlinear Absorption and Optical Limiting of Lasers for Eye/Sensor Protection 379
Index 398
Subject Areas: Physics [PH]
