Droplet-based lateral tunable optofluidic microlens array with pneumatic control

Author

Liu, Ye ; Jiang, Hongrui

Author_Institution

Univ. of Wisconsin at Madison, Madison, WI, USA

fYear

2010

Firstpage

131

Lastpage

132

Abstract

We report on a droplet-based, in situ formed tunable cylindrical microlens array in microchannels. The deionized water microlenses are formed via liquid-air interfaces of liquid droplets at T-shaped junctions of octadecyltrichlorosilane (OTS) treated polymerized isobornyl acrylate [poly(IBA)] microchannels, and their focal length can be tuned individually by pneumatic manipulation. These microlenses possess low spherical aberrations. Gravity, which affects the shape of the liquid microlenses, is considered in the design. Fluorescence enhancement for potential lab-on-a-chip applications is also demonstrated using such microlens array.

Keywords

drops; manipulators; micro-optomechanical devices; microchannel flow; microlenses; optical arrays; optical design techniques; optical tuning; pneumatic control equipment; water; cylindrical microlens array; deionized water microlenses; fluorescence; focal length; gravity; isobornyl acrylate; lab-on-a-chip; liquid droplets; microchannels; octadecyltrichlorosilane; optofluidic microlens array; pneumatic manipulation; spherical aberrations; Arrays; Fluorescence; Junctions; Lenses; Microchannel; Microoptics; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical MEMS and Nanophotonics (OPT MEMS), 2010 International Conference on

Conference_Location

Sapporo

Print_ISBN

978-1-4244-8926-8

Electronic_ISBN

978-1-4244-8925-1

Type

conf

DOI

10.1109/OMEMS.2010.5672148

Filename

5672148