Birefringence images of screw dislocations viewed end‐on in cubic crystals

The expressions for the intensity distribution in birefringence images and computer‐simulated images of a straight, pure screw dislocation with Burgers vector a[111] viewed end‐on in cubic crystals have been obtained for the first time by considering the anisotropy of both elastic and photoelastic properties of the material. The effect of elastic and photoelastic anisotropy on birefringence images of screw dislocation viewed end‐on has been discussed. And the computer‐simulated images have been compared with the experimental images observed in Ba(NO3)2 crystals grown from aqueous solution.

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