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

Femtosecond laser written scattering chip for high-resolution low-cost reconstructive spectrometry
Femtosecond laser written scattering chip for high-resolution low-cost reconstructive spectrometry
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.
Laser-writing, Reconstructive spectrometry, Scattering chip, Spectrometer
SPIE
Falak, Przemyslaw, Ludwik
f414a5d1-34e8-429d-8f9a-f203b6d83324
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Phillips, David
96ee79d3-d922-4f85-ac56-f4196c9377fb
Vettenburg, Tom
7bf2aadc-de2c-489e-8466-48f13595ceb2
Sun, Qi
66e3c3df-5a60-4927-a47a-c4f6020c2fc0
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Busse, Lynda E.
Soskind, Yakov
Mock, Patrick C.
Falak, Przemyslaw, Ludwik
f414a5d1-34e8-429d-8f9a-f203b6d83324
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Phillips, David
96ee79d3-d922-4f85-ac56-f4196c9377fb
Vettenburg, Tom
7bf2aadc-de2c-489e-8466-48f13595ceb2
Sun, Qi
66e3c3df-5a60-4927-a47a-c4f6020c2fc0
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Busse, Lynda E.
Soskind, Yakov
Mock, Patrick C.

Falak, Przemyslaw, Ludwik, Lee, Timothy, Phillips, David, Vettenburg, Tom, Sun, Qi, Beresna, Martynas and Brambilla, Gilberto (2022) Femtosecond laser written scattering chip for high-resolution low-cost reconstructive spectrometry. Busse, Lynda E., Soskind, Yakov and Mock, Patrick C. (eds.) In Photonic Instrumentation Engineering IX: Photonic Instrumentation Engineering IX. vol. 12008, SPIE. 8 pp . (doi:10.1117/12.2608748).

Record type: Conference or Workshop Item (Paper)

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.

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Published date: 5 March 2022
Additional Information: Funding Information: M.B., D.B.P., T.V. and G.B. directed the project, Q.S. and P.L.F. carried out the wavemeter, spectrometer and stability experiments, P.L.F. designed the spectrometer case, T.V., T.L., Q.S. and P.L.F. developed the analysis algorithm. P.L.F. wrote the manuscript. This work is supported by by the EPSRC Advanced Metrology Hub, Huddersfield with the pilot-study grant “Compact Tailored Spectrometer”. T.V. is a UKRI Future Leaders Fellow supported by grant MR/S034900/1. Publisher Copyright: © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
Keywords: Laser-writing, Reconstructive spectrometry, Scattering chip, Spectrometer

Identifiers

Local EPrints ID: 456170
URI: http://eprints.soton.ac.uk/id/eprint/456170
PURE UUID: 7ba0e258-be50-4f5a-b56b-c0560b1ca93f
ORCID for Przemyslaw, Ludwik Falak: ORCID iD orcid.org/0000-0002-2970-0700
ORCID for Timothy Lee: ORCID iD orcid.org/0000-0001-9665-5578
ORCID for Qi Sun: ORCID iD orcid.org/0000-0002-0850-5463
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499

Catalogue record

Date deposited: 26 Apr 2022 15:13
Last modified: 28 Oct 2022 02:11

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Contributors

Author: Przemyslaw, Ludwik Falak ORCID iD
Author: Timothy Lee ORCID iD
Author: David Phillips
Author: Tom Vettenburg
Author: Qi Sun ORCID iD
Editor: Lynda E. Busse
Editor: Yakov Soskind
Editor: Patrick C. Mock

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