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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)
49 Downloads (Pure)


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.

Original languageEnglish
Title of host publicationPhotonic Instrumentation Engineering IX
EditorsLynda E. Busse, Yakov Soskind, Patrick C. Mock
PublisherSociety of Photo-optical Instrumentation Engineers
ISBN (Electronic)9781510648876
Publication statusPublished - 5 Mar 2022
EventPhotonic Instrumentation Engineering IX 2022 - Virtual, Online
Duration: 20 Feb 202224 Feb 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferencePhotonic Instrumentation Engineering IX 2022
CityVirtual, Online


  • Laser-writing
  • Reconstructive spectrometry
  • Scattering chip
  • Spectrometer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Femtosecond laser written scattering chip for high-resolution low-cost reconstructive spectrometry'. Together they form a unique fingerprint.

Cite this