TY - JOUR

T1 - Engineering near-field focusing of a microsphere lens with pupil masks

AU - Yan, Bing

AU - Yue, Liyang

AU - Wang, Zengbo

PY - 2016/7

Y1 - 2016/7

N2 - Recent researches have shown small dielectric microspheres can perform as super-resolution lens to break optical diffraction limit for super-resolution applications. In this paper, we show for the first time that by combining a microsphere lens with a pupil mask, it is possible to precisely control the focusing properties of the lens, including the focusing spot size and focal length. Generally, the pupil mask can significantly reduce the spot size which means an improved resolution. The work is important for advancing microsphere-based super-resolution technologies, including fabrication and imaging.

AB - Recent researches have shown small dielectric microspheres can perform as super-resolution lens to break optical diffraction limit for super-resolution applications. In this paper, we show for the first time that by combining a microsphere lens with a pupil mask, it is possible to precisely control the focusing properties of the lens, including the focusing spot size and focal length. Generally, the pupil mask can significantly reduce the spot size which means an improved resolution. The work is important for advancing microsphere-based super-resolution technologies, including fabrication and imaging.

U2 - 10.1016/j.optcom.2016.03.008

DO - 10.1016/j.optcom.2016.03.008

M3 - Article

VL - 370

SP - 140

JO - Optics Communications

JF - Optics Communications

SN - 0030-4018

ER -