For sodium light at 589 nanometers passing through quartz, their minimum thickness is approximately 16 micrometers.
For sodium light at 589 nanometers passing through quartz, their minimum thickness is approximately 16 micrometers. Plates of this type are usually made from very thin sheets of mica which are then tested for the correct thickness. If the incident wave is polarized at a 45-degree angle to one of these, then the output wave has the same intensity and will be left-circularly polarized. FTP, what are these optical devices which derive their name from the fact that they impart a phase difference of 90 degrees?
For sodium light at 589 nanometers passing through quartz, their minimum thickness is approximately 16 micrometers.
{quarter-wave} plates