科研之友
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摘要
A method using a spectrophotometer for calibrating Soleil-Babinet compensator is proposed. It is based on the spectroscopic method which utilizes the relation between transmittance and wavelength to obtain retardation. By placing a multiple order half wave plate behind the Soleil-Babinet compensator, zero-order retardation can be measured, which is difficult to accomplish by spectroscopic method. In the experiment, the retardations of the compensator in the range 0-lambda are measured. It is demonstrated that the precision of retardation is 0.45 nm at the position 0 and lambda while the maximum error is less than 1 nm between the two positions.
- 出版日期2010-6
- 单位南京理工大学
