Chinese Optics Letters, 2006, 4 (12): 705, Published Online: Dec. 30, 2006
A spectroscopic method for determining thickness of quartz wave plate Download: 710次
色偏振干涉 石英波片 双折射率色散 延迟量 厚度测量 120.4630 Optical inspection 120.5050 Phase measurement 120.6200 Spectrometers and spectroscopic instrumentation
Abstract
A spectroscopic method to determine thickness of quartz wave plate is presented. The method is based on chromatic polarization interferometry. With the polarization-resolved transmission spectrum (PRTS) curve, the phase retardation of quartz wave plate can be determined at a wide spectral range from 200 to 2000 nm obviously. Through accurate judgment of extreme points of PRTS curve at long-wave band, the physical thickness of quartz wave plates can be obtained exactly. We give a measuring example and the error analysis. It is found that the measuring precision of thickness is mainly determined by the spectral resolution of spectrometer.
Weiwei Feng, Lihuang Lin, Ligang Chen, Huafeng Zhu, Ruxin Li, Zhizhan Xu. A spectroscopic method for determining thickness of quartz wave plate[J]. Chinese Optics Letters, 2006, 4(12): 705.