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Experimental far-field imaging properties of high refractive index microsphere lens

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Abstract

The far-field imaging properties of a high index microsphere lens spatially separated from the object are experimentally studied. Our experimental results show that, for a Blu-ray disk whose spacing is 300 nm, the high index microsphere lens also can discern the patterns of the object sample when the distance between the lens and the object is up to 5.4 μm. When the distance is increased from 0 to 5.4 μm, for the microsphere lens with a diameter of 24 μm, the lateral magnification increases from 3.5× to 5.5×, while the field of view decreases from 5.1 to 3.0 μm. By varying the distance between the lens and the object, the optical image can be optimized.We also indicate that the far-field imaging capability of a high index microsphere lens is dependent on the electromagnetic field intensity profile of the photonic nanojet under different positions of the microsphere lens.

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DOI:10.1364/PRJ.3.000339

基金项目:The authors gratefully acknowledge the financial support for this research from the Doctoral Fund of Ministry of Education of China (No. 20133207110007) and the National Natural Science Foundation of China (No. 61475073).

收稿日期:2015-05-28

录用日期:2015-09-08

网络出版日期:2015-10-06

作者单位    点击查看

Minglei Guo:Department of Physics, Nanjing Normal University, Nanjing 210097, ChinaDepartment of Optoelectronic Engineering, Anhui Science and Technology University, Chuzhou 233100, China
Yong-Hong Ye:Department of Physics, Nanjing Normal University, Nanjing 210097, China
Jinglei Hou:Department of Physics, Nanjing Normal University, Nanjing 210097, China
Bintao Du:Department of Physics, Nanjing Normal University, Nanjing 210097, China

联系人作者:Yong-Hong Ye(yeyonghong@njnu.edu.cn)

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引用该论文

Minglei Guo, Yong-Hong Ye, Jinglei Hou, and Bintao Du, "Experimental far-field imaging properties of high refractive index microsphere lens," Photonics Research 3(6), 339-342 (2015)

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