Zeitschriftenaufsätze, Buchbeiträge

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Kleindienst, Roman; Kampmann, Ronald; Stoebenau, Sebastian; Sinzinger, Stefan
Hybrid optical (freeform) components - functionalization of nonplanar optical surfaces by direct picosecond laser ablation. - In: Applied optics, ISSN 2155-3165, Bd. 50 (2011), 19, S. 3221-3228

The performance of optical systems is typically improved by increasing the number of conventionally fabricated optical components (spheres, aspheres, and gratings). This approach is automatically connected to a system enlargement, as well as potentially higher assembly and maintenance costs. Hybrid optical freeform components can help to overcome this trade-off. They merge several optical functions within fewer but more complex optical surfaces, e.g., elements comprising shallow refractive/reflective and high-frequency diffractive structures. However, providing the flexibility and precision essential for their realization is one of the major challenges in the field of optical component fabrication. In this article we present tailored integrated machining techniques suitable for rapid prototyping as well as the fabrication of molding tools for low-cost mass replication of hybrid optical freeform components. To produce the different feature sizes with optical surface quality, we successively combine mechanical machining modes (ultraprecision micromilling and fly cutting) with precisely aligned direct picosecond laser ablation in an integrated fabrication approach. The fabrication accuracy and surface quality achieved by our integrated fabrication approach are demonstrated with profilometric measurements and experimental investigations of the optical performance.



https://doi.org/10.1364/AO.50.003221
Sinzinger, Stefan;
Optics design - bridge between new technologies and innovative applications. - In: Photonics in Germany, ISSN 2191-7191, (2011), S. 66

Teschke, Marcel; Sinzinger, Stefan
A generalized approach to describe the interference contrast and the phase contrast method. - In: Advances in imaging and electron physics, ISSN 1076-5670, Bd. 164 (2010), S. 303-327

http://dx.doi.org/10.1016/B978-0-12-381312-1.00004-3
Amberg, Martin; Stoebenau, Sebastian; Sinzinger, Stefan;
Single-step replication of a highly integrated PDMS optofluidic analysis system. - In: Applied optics, ISSN 2155-3165, Bd. 49 (2010), 22, S. 4326-4330

Micromilling is a promising technology for the fabrication of surface profiles with optical quality. We present a highly integrated optofluidic system made of polydimethylsiloxane (PDMS). The system is replicated in a single-step process from a micromilled polymethyl methacrylate master mold.



https://doi.org/10.1364/AO.49.004326
Stoebenau, Sebastian; Sinzinger, Stefan
Ultrapräzisionsbearbeitung für optische Freiformflächen und Mikrosysteme. - In: Jahrbuch Optik und Feinmechanik, ISSN 0075-272X, Bd. 56 (2010), S. 131-144

Brunner, Robert; Burkhardt, Matthias; Sinzinger, Stefan
Ultrakompakter Spektralsensor auf der Basis komplexer holographischer Elemente. - In: Jahrbuch Optik und Feinmechanik, ISSN 0075-272X, Bd. 56 (2010), S. 17-32

Meinecke, Thomas; Sabitov, Nail; Sinzinger, Stefan;
Information extraction from digital holograms for particle flow analysis. - In: Applied optics, ISSN 2155-3165, Bd. 49 (2010), 13, S. 2446-2455

https://doi.org/10.1364/AO.49.002446
Kleindienst, Roman; Möller, Lothar; Sinzinger, Stefan;
Highly efficient refractive Gaussian-to-tophat beam shaper for compact terahertz imager. - In: Applied optics, ISSN 2155-3165, Bd. 49 (2010), 10, S. 1757-1763

https://doi.org/10.1364/AO.49.001757
Leger, James R.; Glass, Tiffany J.; Grandpre, Patrick Z.; Hillenbrand, Matthias; Johnson, Shane B.; Santi, Peter A.
Thin-sheet laser imaging microscopy for optical sectioning of thick tissues. - In: BioTechniques, ISSN 1940-9818, Bd. 46 (2009), 4, S. 287-294

We report the development of a modular and optimized thin-sheet laser imaging microscope (TSLIM) for nondestructive optical sectioning of organisms and thick tissues such as the mouse cochlea, zebrafish brain/inner ear, and rat brain at a resolution that is comparable to wide-field fluorescence microscopy. TSLIM optically sections tissue using a thin sheet of light by inducing a plane of fluorescence in transparent or fixed and cleared tissues. Moving the specimen through the thinnest portion of the light sheet and stitching these image columns together results in optimal resolution and focus across the width of a large specimen. Dual light sheets and aberration-corrected objectives provide uniform section illumination and reduce absorption artifacts that are common in light-sheet microscopy. Construction details are provided for duplication of a TSLIM device by other investigators in order to encourage further use and development of this important technology.



http://dx.doi.org/10.2144/000113087
Egloff, Thomas; Knobbe, Jens; Sinzinger, Stefan; Grüger, Heinrich
Design of a micro-opto-electro-mechanical-system-based near-infrared hyperspectral imager. - In: Applied optics, ISSN 2155-3165, Bd. 48 (2009), 34, S. 6583-6593

https://doi.org/10.1364/AO.48.006583