Publication Details
Overview
 
 
Artem Shcheglov, Yunfeng Nie, Colas Schretter, Rob Heeman, Arthur van der Put, Willem Hoving, Thienpont, Hugo, Peter Schelkens, Ottevaere, Heidi
 

Optics Express

Contribution To Journal

Abstract 

We demonstrate a miniaturized broadband spectrometer employing a reconstruction algorithm for resolution enhancement. We use an opto-digital co-design approach, by firstly designing an optical system with certain residual aberrations and then correcting these aberrations with a digital algorithm. The proposed optical design provides an optical resolution less than 1.7 nm in the VIS-channel (400-790 nm) and less than 3.4 nm in the NIR-channel (760-1520 nm). Tolerance analysis results show that the components are within a commercial class, ensuring a cost-efficient design. We build the prototype with a size of 37x30x26 mm(3) and demonstrate that by applying a restoration algorithm, the optical resolution can be further improved to less than 1.3 nm (VIS-channel) and less than 2.3 nm (NIR-channel). (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

Reference 
 
 
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