13 9 Thermal, Density, Lattice Distortion Optical Nonlinearities in Nematic, Cholesteric, and Blue‐phase Liquid Crystals 9.1. INTRODUCTION 9.2. ELECTROSTRICTION AND FLOWS IN NON‐ABSORBING LIQUID CRYSTALS – A GENERAL OVERVIEW 9.3. LASER‐INDUCED DENSITY AND TEMPERATURE MODULATIONS IN LIQUID CRYSTALS 9.4. OPTICAL NONLINEARITIES OF NEMATIC LIQUID CRYSTALS 9.5. COUPLED NONLINEAR OPTICAL EFFECTS IN NEMATIC LIQUID CRYSTALS 9.6. NONLINEAR OPTICAL RESPONSES OF CHOLESTERIC BLUE‐PHASE LIQUID CRYSTALS REFERENCES
14 10 Electronic Optical Nonlinearities 10.1. INTRODUCTION TO QUANTUM MECHANICAL TREATMENT OF MOLECULES 10.2. DENSITY MATRIX FORMALISM FOR OPTICAL INDUCED MOLECULAR ELECTRONIC POLARIZABILITIES 10.3. LINEAR AND NONLINEAR ELECTRONIC SUSCEPTIBILITIES 10.4. INTENSITY‐DEPENDENT REFRACTIVE INDEX CHANGE AND NONLINEAR ABSORPTION REFERENCES
15 11 Nonlinear Optics 11.1. INTRODUCTION 11.2. COUPLED MAXWELL WAVE EQUATIONS 11.3. NONLINEAR OPTICAL PHENOMENA 11.4. STIMULATED SCATTERINGS 11.5. ULTRAFAST LASER PULSE SELF‐ACTION EFFECTS IN CHOLESTERIC LIQUID CRYSTALS REFERENCES
16 12 Nonlinear Optical Processes Observed in Liquid Crystals 12.1. SELF‐ACTION NONLINEAR OPTICAL PROCESSES 12.2. OPTICAL WAVE MIXINGS 12.3. LIQUID CRYSTALS FOR ALL‐OPTICAL IMAGE PROCESSING 12.4. HARMONIC GENERATIONS AND SUM‐FREQUENCY SPECTROSCOPY 12.5. OPTICAL SWITCHING 12.6. NONLINEAR ABSORPTION AND OPTICAL LIMITING OF LASERS FOR EYE/SENSOR PROTECTION References
17 Index
List of Tables
1 Chapter 1Table 1.1 Anisotropic Physical Parameters of a Typical Nematic Liquid Crystals (E...
2 Chapter 7TABLE 7.1 Physical constant and their values in SI (MKS) units.
3 Chapter 8TABLE 8.1 Orientational nonlinearity of liquid crystals near Tc.
4 Chapter 9TABLE 9.1 Typical Values for Some Nematic Liquid Crystals
5 Chapter 12TABLE 12.1 Refractive index coefficients of some nonlinear optical materials.TABLE 12.2 Switching efficiency (χ (3)/ατ) of some nonlinear optical materials....Table 12.3 Comparison of the performance characteristics of commercial LCSLM with...Table 12.4 CW and pulsed lasers.
List of Illustrations
1 Chapter 1Figure 1.1. Molecular structure of a typical liquid crystal.Figure 1.2. Molecular structure of a heterocyclic liquid crystal.Figure 1.3. Molecular structure of an organometallic liquid crystal.Figure 1.4. Molecular structure of a sterol.Figure 1.5. Molecular structure of 5CB (pentyl cyanobiphenyl).Figure 1.6. The π → π* electronic transitions in a benzene molecule.Figure 1.7. Transmission spectra of nematic liquid crystals: (a) 5CB; (b) N‐...Figure 1.8. Chemical structure and cartoon representation of sodium dodecyl ...Figure 1.9. Three different types of polymeric liquid crystals: (a) vinyl ty...Figure 1.10. Polymeric liquid crystals: (a) main chain; (b) side chain.Figure 1.11. Self‐organization of the rod‐shaped LC molecules via local and ...Figure 1.12. Arrangement of dipoles in the centrosymmetric bulk crystal such...Figure 1.13. Molecular arrangements of liquid crystals: (a) smectic‐A; (b) s...Figure 1.14. A shuttlecock‐shaped liquid crystal formed by incorporating ful...Figure 1.15. Molecular structures of the four constituents making up the liq...Figure 1.16. Phase diagram of the mixture of two liquid crystals.Figure 1.17. Alignment of a dichroic dye‐doped nematic liquid crystal: (a) b...Figure 1.18. Schematic depiction of a polymer‐dispersed liquid crystal mater...Figure 1.19. Nematic liquid crystal cells: (a) homeotropically aligned; (b) ...Figure 1.20. (a) CLC with focal conic structure as a result of director axis...Figure 1.21. Left: Image of logo obstructed by a thin CLC cell with focal co...Figure 1.22. Schematic depiction of the makeup of a blue-phase liquid crysta...Figure 1.23. Reflectance from BPLC in polycrystalline (lower
