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.
Pay for Contract Specialists in the United States sits in the ballpark of $59K per year. In the world of Contract Specialists, overall income ranges from $38K near the bottom to $89K at the top; this can include more than $6K from bonuses and more than $6K from profit sharing in exceptional cases.