Wide dynamic range wavefront sensor using sub-wavelength grating array

Xiaobin Liang, Yanqiu Li*, Ke Liu

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

We propose a new zonal wavefront sensor with a very wide dynamic range. The proposed sensor uses a sub-wavelength grating array to subdivide the input wavefront and produce transmitted light spots on CCD. The wavefront tilts are calculated from the transmissions of a sub-wavelength grating array. The dynamic range and resolution of the proposed sensor are respectively decided by the grating parameters and the sub-unit size of the array. So these two performances of the sensor are independent of one another, which enables the realization of wide dynamic range and high resolution simultaneously. We introduce the principle of the sensor by both Rigorous Coupled Wave Analysis and Finite-Difference Time-Domain methods. A simulation is designed to validate our proposed method, and the measurement errors are analyzed. The sensor performs good sensitivity for wide incident angles, which is particularly suitable for spherical input wavefront.

源语言英语
页(从-至)68-74
页数7
期刊Optics Communications
347
DOI
出版状态已出版 - 15 7月 2015

指纹

探究 'Wide dynamic range wavefront sensor using sub-wavelength grating array' 的科研主题。它们共同构成独一无二的指纹。

引用此

Liang, X., Li, Y., & Liu, K. (2015). Wide dynamic range wavefront sensor using sub-wavelength grating array. Optics Communications, 347, 68-74. https://doi.org/10.1016/j.optcom.2015.02.045