## Physical Properties of Crystals: Their Representation by Tensors and Matrices |

### From inside the book

Results 1-3 of 7

Page 239

13.2). We know that two waves are Optic Wave normal I a b Fio. 13.4. The

outwards from the point source in any direction. The indicatrix construction shows

...

13.2). We know that two waves are Optic Wave normal I a b Fio. 13.4. The

**wave****surface**for a uniaxial crystal; (a) positive crystal, (6) negative crystal. propagatedoutwards from the point source in any direction. The indicatrix construction shows

...

Page 240

It is then a simple piece of analytical geometry, which we shall omit here, to show

that the extraordinary

axis. The lengths of the axes are evidently proportional to l/ne, l/ne, l/n0.

It is then a simple piece of analytical geometry, which we shall omit here, to show

that the extraordinary

**wave surface***' is an ellipsoid of revolution about the opticaxis. The lengths of the axes are evidently proportional to l/ne, l/ne, l/n0.

Page 263

Optic Fio. 14.2. The

are distorted by optical activity. The proportional difference between the radii of

the two undistorted surfaces (full curves) at right angles to the optic axis is 6 x 10"'

.

Optic Fio. 14.2. The

**wave surfaces**of a -quartz (not to scale), showing how theyare distorted by optical activity. The proportional difference between the radii of

the two undistorted surfaces (full curves) at right angles to the optic axis is 6 x 10"'

.

### What people are saying - Write a review

We haven't found any reviews in the usual places.

### Contents

THE GROUNDWORK OF CRYSTAL PHYSICS | 3 |

EQUILIBRIUM PROPERTIES | 51 |

ELECTRIC POLARIZATION | 68 |

69 other sections not shown

### Other editions - View all

### Common terms and phrases

angle anisotropic applied biaxial birefringence centre of symmetry Chapter coefficients conductivity crystal classes crystal properties crystal symmetry cube cubic crystals defined denoted diad axis dijk direction cosines electric field electro-optical effect ellipsoid equal equation example expression follows force given gives heat flow Hence hexagonal indicatrix isothermal isotropic lattice left-handed magnetic magnitude matrix notation measured moduli monoclinic number of independent Onsager's Principle optic axis optical activity orientation permittivity perpendicular photoelastic effect piezoelectric effect plane plate point group positive principal axes produced pyroelectric effect quadric quantities radius vector referred refractive index relation representation quadric represents right-handed rotation scalar second-rank tensor set of axes shear shown shows strain stress suffix notation symbol symmetry elements Table temperature gradient thermal expansion thermodynamics thermoelectric effects Thomson heat tion transformation law trigonal uniaxial unit volume values wave normal wave surface written zero