3D Printing of nano- and micro-fabricated components to enable compact snapshot imaging spectrometers: analysis of design strategies and fabrication space

Tomasz S. Tkaczyk; Christopher Flynn; Haimu Cao; Jiawei Lu; Yicheng Ma

doi:10.1117/12.2684123

17 October 2023 3D Printing of nano- and micro-fabricated components to enable compact snapshot imaging spectrometers: analysis of design strategies and fabrication space

Tomasz S. Tkaczyk, Christopher Flynn, Haimu Cao, Jiawei Lu, Yicheng Ma

Author Affiliations +

Proceedings Volume PC12741, Advanced Materials, Biomaterials, and Manufacturing Technologies for Security and Defence; PC127410D (2023) https://doi.org/10.1117/12.2684123
Event: SPIE Security + Defence, 2023, Amsterdam, Netherlands

Abstract

Here we present additive manufacturing processes (full 3D and 2.5D grayscale modes) to fabricate micro and nano precision optical components for snapshot imaging spectrometers and sensing devices. Specifically we apply 2 Photon Polymerization (2PP) technique to manufacture multifaceted mirrors, arbitrary waveguide/fiber arrays and lenslet array components. All these can be effectively applied in field integral snapshot imaging spectrometers. The fabrication process allows features of 100nm-150nm and surface roughness of 10-20 nm – sufficient for optical quality components. The focus of this presentation is to analyze component designs in context of spatial and spectral sampling, overall part geometry, component performance (throughout, form etc.) and fabrication times. Overall, complete spectrometer dimensions are also discussed in terms of individual element features - unit size (facet, fiber etc.). Presented proof of concept prototypes demonstrate potential for high level integration, small dimensions and design flexibility. Test spectral samples are imaged in VIS spectral range using mapping and fiber array based methods.

Conference Presentation

Citation Download Citation

Tomasz S. Tkaczyk, Christopher Flynn, Haimu Cao, Jiawei Lu, and Yicheng Ma "3D Printing of nano- and micro-fabricated components to enable compact snapshot imaging spectrometers: analysis of design strategies and fabrication space", Proc. SPIE PC12741, Advanced Materials, Biomaterials, and Manufacturing Technologies for Security and Defence, PC127410D (17 October 2023); https://doi.org/10.1117/12.2684123

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