Effect of temperature gradient on the optical quality of mercurous chloride crystals

@inproceedings{Singh1989EffectOT,
  title={Effect of temperature gradient on the optical quality of mercurous chloride crystals},
  author={Narsingh Bahadur Singh and D. Kenneth Davies and Milton S. Gottlieb and T. Henningsen and Robert Mazelsky and Martin Eden Glicksman},
  year={1989}
}
Abstract Single crystals of mercurous chloride were grown at temperature gradients of 8, 11 and 17 K/cm by the physical vapor transport method. The optical quality of these crystals was evaluated by measuring bulk scattering and inhomogeneity of refractive index by birefringence interferometry. It was observed that a high temperature gradient at the solid–vapor interface induced thermal stresses and crystals showed higher scattering and irregular fringes.