Publication: Research - peer-review › Conference article – Annual report year: 2012
We are presenting so-called Wave-guided Optical Waveguides (WOWs) fabricated by two-photon polymerization and capable of being optically manipulated into any arbitrary orientation. By integrating optical waveguides into the structures we have created freestanding waveguides which can be positioned anywhere in a sample at any orientation using real-time 3D optical micromanipulation with six degrees of freedom. One of the key aspects of our demonstrated WOWs is the change in direction of in-coupled light and the marked increase in numerical aperture of the out-coupled light. Hence, each light propelled WOW can tap from a relatively broad incident beam and generate a much more tightly confined light at its tip. The presentation contains both numerical simulations related to the propagation of light through a WOW and preliminary experimental demonstrations on our BioPhotonics Workstation. In a broader context, this research shows that optically trapped micro-fabricated structures can potentially help bridge the diffraction barrier. This structure-mediated paradigm may be carried forward to open new possibilities for exploiting beams from far-field optics down to the sub-wavelength domain.
|Journal||Proceedings of SPIE, the International Society for Optical Engineering|
|State||Published - 2012|
|Conference||2012 Optics+Photonics : Optical Trapping and Optical Micromanipulation IX|
|City||San Diego, CA|
|Period||12/08/2012 → 16/08/2012|
|Citations||Web of Science® Times Cited: 0|
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