High Curvature Concave–Convex Microlens

Author

Jun-Jie Xu ; Wen-Gang Yao ; Zhen-Nan Tian ; Lei Wang ; Kai-Min Guan ; Ying Xu ; Qi-Dai Chen ; Ji-An Duan ; Hong-Bo Sun

Author_Institution

State Key Lab. on Integrated Optoelectron., Jilin Univ., Changchun, China

Volume

27

Issue

23

fYear

2015

Firstpage

2465

Lastpage

2468

Abstract

We report in this letter a concave-convex microlens (CCML) consisting of two different high curvature surfaces. Compared with the conventional plano-convex microlenses, the CCML not only allows for more design freedom, but also offers significantly improved optical performance, particularly minimization of aberration, as is critical when the size of optical components is small. Experimentally, focusing capability at different wavelengths was demonstrated, and the axial chromatic aberration was found significantly reduced to ~4.6 % of the focal length shift under wavelength 450-660 nm.

Keywords

aberrations; microlenses; optical design techniques; optical focusing; CCML; axial chromatic aberration; conventional plano-convex microlenses; design freedom; focal length shift; focusing capability; high curvature concave-convex microlens; optical components; optical performance; wavelength 450 nm to 660 nm; Lenses; Microoptics; Optical imaging; Optical surface waves; Sun; Ultrafast optics; Concave-convex microlens; design freedom; femtosecond laser direct writing; high curvature;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2470195

Filename

7244205