Dresden 2020 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 92: Focus: High-resolution Lithography and 3D Patterning II (joint session KFM/CPP/HL)

CPP 92.2: Vortrag

Donnerstag, 19. März 2020, 09:50–10:10, TOE 317

3D printing of complex submillimeter-sized wide angle objectives — •Zhen Wang1, Ksenia Weber1, Simon Thiele2, Alois Herkommer2, and Harald Giessen114th Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany — 2Institute of Technical Optics and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart, Germany

Compact image sensors with a variety of focal lengths, fields of view, and other optical parameters, will be the enabling technology of integrated devices for industry 4.0. In order to miniaturize the imaging devices from currently several mm3 to below 1 mm3, and to achieve diameters of the optics below 1 mm, 3D printing with femtosecond laser pulses is the method of choice. Here, we present several multi-lens designs as well as printed objectives with fields of view that range from 60 to 95, and focal lengths in the range of 200-300  µm, with diameters around 800 µm, which allow for wide-angle imaging. We characterize their performances and report how to overcome some issues when printing such challenging designs. In the future, those objectives can be directly printed onto CMOS imaging chips which will enable very compact image sensors.

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