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.
Credentialing Specialist Salary. (United States). Credentialing Specialists in the United States are largely female. The average salary of the entire group is approximately $16.58 per hour. The bottom of the pay range sits near $12.65 per hour, and the top verges on $21.99.