物理学报2012，Vol.61Issue(18)：526-533,8.
泽尼克多项式校正全息阵列光镊像差的实验研究
Aberrations in holographic array optical tweezers corrected with Zernike polynomials
摘要
Abstract
Aberrations will degrade trapping performance of optical tweezers. In the holographic optical tweezers, aberrations originate not only from optical elements but also from holographic phase hologram of optical traps designed by a certain algorithna. We utilize a spatial light modulator to imprint Zernike polynomials phase hologram for correcting some certain aberrations in holographic array optical tweezers which are caused by grating and lens algorithm. The results show that thirdorder Zernike term can effectively correct coma due to the algorithm in the optical train, and the trap stiffness for 2 tm microns diameter polystyrene beads can reach 40%. Further comparison between different Zernike term aberration correction effects demonstrates that coma caused by grating and lens algorithm in the holographic array optical tweezer has the same serious influence on tweezer trapping performance as the aberrations originating from optical elements. Meanwhile, based on firstorder Zernike term aberration correction results it can be obtained that grating and lens algorithm are robust with firstorder Zernike aberrations. The correcting of aberrations for algorithm in holographic optical tweezers has great significance for improving the tweezer trapping performance and deepening the understanding of specific algorithm.关键词
泽尼克多项式/液晶空间光调制器/全息阵列光镊/像差校正Key words
Zemike polynomials/spatial light modulator/holographic array optical tweezers/aberration correction分类
信息技术与安全科学引用本文复制引用
刘伟伟,任煜轩,高红芳,孙晴,王自强,李银妹..泽尼克多项式校正全息阵列光镊像差的实验研究[J].物理学报,2012,61(18):526-533,8.基金项目
国家自然科学基金（批准号：21073174,20974107,60974038）资助的课题. （）
