Femtosecond laser written scattering chip for high-resolution low-cost reconstructive spectrometry

Przemyslaw L. Falak; Qi Sun; Tom Vettenburg; Timothy Lee; David B. Phillips; Gilberto Brambilla; Martynas Beresna

doi:10.1117/12.2608748

5 March 2022 Femtosecond laser written scattering chip for high-resolution low-cost reconstructive spectrometry

Przemyslaw L. Falak, Qi Sun, Tom Vettenburg, Timothy Lee, David B. Phillips, Gilberto Brambilla, Martynas Beresna

Proceedings Volume 12008, Photonic Instrumentation Engineering IX; 120080E (2022) https://doi.org/10.1117/12.2608748
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

The common challenge for reconstructive spectrometers is achieving high spectral resolution without sacrificing device stability, size and costs. Here a fully integrated scattering chip-based spectrometer build on Raspberry Pi platform is designed and implemented. It exhibits no dependence on temperature and humidity (22.7-23.8 °C and 39.5-41 %), is confined in small space (box 50x35x35 mm) and it can reconstruct spectra with resolution up to 0.05 nm (50 pm). The only instability – gravitational mechanical micromovements were compensated by applying pixel binning and device can still reconstruct spectra from binned pictures as small as 32 x 24 pixels.

Conference Presentation

Citation Download Citation

Przemyslaw L. Falak, Qi Sun, Tom Vettenburg, Timothy Lee, David B. Phillips, Gilberto Brambilla, and Martynas Beresna "Femtosecond laser written scattering chip for high-resolution low-cost reconstructive spectrometry", Proc. SPIE 12008, Photonic Instrumentation Engineering IX, 120080E (5 March 2022); https://doi.org/10.1117/12.2608748

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