TLP contents
Main pages
- Aims
- Before you start
- Introduction
- Order and disorder – molecular orientation
- Order and disorder – molecular position
- Defects
- Optical properties – birefringence in nematics
- Optical properties – birefringence in chiral nematics
- Optical properties – observing defects
- Observing phase transitions
- Commercial uses
- Summary
- Questions
- Going further
Additional pages
Media resources
- Phase transformation (20x magnification, 3x speed) (video)
- Phase transformation (20x magnification, 4x speed) (video)
- Phase transformation (20x magnification, 3x speed) (video)
- Part 1 of the phase transformation in another sample (video)
- Part 2 of the phase transformation in another sample (video)
- Movement of schlieren brushes in a nematic liquid crystal (video)
- s = -1 line disclination (such as in a capillary tube) (video)
- s = -1 point disclination (such as in a small spherical droplet) (video)
- s = 1 line disclination (such as in a capillary tube) (video)
- s = 1 point disclination (such as in a small spherical droplet) (video)
- Diagram of choleristic crystals (image)
- Diagram of disinclinations (image)
- Image showing disclination as s = -1/2 (image)
- Graph of refractive index with temperature (image)
- Formula of MBBA (image)
- Michael-Levy Chart (image)
- Equation for order parameter (image)
- Image of nematic liquid crystal (image)
- Diagram of nematic crystals (image)
- Graph of the variation of order parameter with temperature (image)
- Diagram of order parameter in liquid crystal (image)
- Diagram of phase changes liquid to liquid crystal to liquid (image)
- Title (image)
- Diagram of disinclination in nematic liquid crystal s=1 (image)
- Diagram of disinclination in nematic liquid crystal s=-1 (image)
- Diagram of disinclination in nematic liquid crystal s=-1/2 (image)
- Diagram of disinclination in nematic liquid crystal s=1/2 (image)
- Diagram of disinclination in nematic liquid crystal horizontal (image)
- Diagram of disinclination in nematic liquid crystal horizontal & vertical (image)
- Diagram of structure of a lyotrophic compound (image)
- Diagram of miscelle (image)
- Diagram of miscelle (image)
- Diagram of disinclination in nematic liquid crystal (image)
- Diagram of disinclination in nematic liquid crystal (image)
- Diagram of disinclination in nematic liquid crystal (image)
- Diagram of disinclination in nematic liquid crystal (image)
- Diagram of smectic crystals (image)
- Diagram of structure of cholesteryl nonanoate (image)
- Diagram of structure of porphyrin (image)
- Diagram of structure of decane (image)
- Explanation of birefringence (Flash)
- In a chiral material how light can become circularly polarised (Flash)
- Q2 Test yourself (Flash)
- View through optical microscope of 180 degree rotation of nematic liquid crystal (Flash)
- How a single pixel display is made and operated (Flash)
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