Optofluidic compound microlenses made by emulsion techniques

Abstract

Here we present a new method to make liquid lenses. It is based on the microfluidics method and involves the preparation of emulsions one drop at a time. Tests of lenses by image formation are presented. Experimental results are compared with results of an optical design program. We also present a new type of lens that we call a Compound Lens which consists of two spherical lenses, one inside the other.

Interaction of guided light in rib polymer waveguides with dielectrophoretically controlled nanoparticles

“…In most cases, the waveguides and microfluidic channels are patterned using photolithographic printing techniques (Qin et al 1998;Xia and Whitesides 1998) and are therefore low cost, resulting in a potentially disposable yet complex optofluidic system (Sheridan et al 2009). The functionality of these devices have been continuously expanded to serve as optofluidic lenses (Nguyen 2010;Calixto et al 2010), ring resonators (Li and Fan 2010), sensors (Seow et al 2010;Compopiano et al 2004;Erickson et al 2008) and switches (Nguyen et al 2007;Groisman et al 2008;Seow et al 2009;Vishnubhatla et al 2009) for applications in the areas of healthcare and telecommunications. Recently, nanoparticle-enabled optofluidic devices have been demonstrated in several reports (Liu et al 2006;Yin et al 2007;Kuhn et al 2009;Jonas and Zemanek 2008).…”