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A concept for a 3-D waveguide system, which can be used for optical phased arrays, is presented in this letter. We implemented static phased arrays with rod waveguides of different widths, which can be used for holographic applications. They are fabricated with direct laser writing, a technique based on two photon polymerization. As the element size of our phased array can be in the order of the visible...
Multidimensional optical solitons in continuous Kerr media are unstable and prone to collapse. Several mechanism have been identified to prevent collapse like saturating nonlinearity, spatio-temporal aberrations, and nonlocal response. On the contrary, discrete optical system such as waveguide arrays can sustain the propagation of staAcircnot ble localized wavepackets both in space and time, even...
A microfabricated compound eye lens, compatible to a natural compound eye shows a spherical arrangement of integrated optical units called artificial ommatidia. Each consists of a self-aligned microlens and waveguide. The increase of the waveguide length is an indispensible prerequisite for obtaining high resolution images through an artificial compound eye for wide field-of-view imaging as well as...
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