A widely used one is the Kretschmann configuration, in which light is focused onto the metal film through a glass prism and the reflection of the light is detected FIG.

Thomas Kretschmann was the first choice as the voice of Johann Kraus, but Guillermo del Toro was not satisfied with the result, and subsequently brought in Seth MacFarlane.

Two hundred years after Mary Shelley's novel the brilliant but mad Doctor (Thomas Kretschmann) has sustained his creature and himself over two centuries through genetic experimentation.