Of course, there are two possible senses of rotation of circularly polarized light: right and left. If the slow axis of the quarter wave sheet is at -45Â° to the axis of the polarizer you get circular polarization of the opposite sense compared to what you get if it's oriented at +45Â°.
A credential specialist working in the United States earns an average of $13.82 to $17.91 per hour, or $29,796 to $39,988 annually, according to Payscale, as of September 2010.
For example the median expected annual pay for a typical Quality Assurance Specialist I in the United States is $51,288, so 50% of the people who perform the job of Quality Assurance Specialist I in the United States are expected to make less than $51,288.