Influence of substrate thickness on optical disk readout.

  title={Influence of substrate thickness on optical disk readout.},
  author={J. A. Braat},
  journal={Applied optics},
  volume={36 30},
I consider the influence of different substrate thicknesses on the signal obtained from an optical disk. Two solutions are presented for the reading of different disk types. In one situation a substrate thickness change for disks with equal density is made inoffensive by introduction of a combined amplitude-phase mask in the pupil of the readout objective… CONTINUE READING