Glan prism or Glan polarizer may refer to:

• Glan–Thompson prism, a polarizer made from cemented calcite prisms
• Glan–Foucault prism, a polarizer made from air-spaced calcite prisms
• Glan–Taylor prism, an improved air-spaced calcite polarizer design
  • Glan–laser prism, a high-power Glan–Taylor prism

This disambiguation page lists articles associated with the title Glan prism.
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