5 Key Takeaways

• 1

  LEGO blocks serve as effective standard samples for evaluating fluorescence interference in Raman spectroscopy.

• 2

  Comparative studies revealed that longer wavelength excitation improves spectral quality in handheld Raman instruments.

• 3

  Fluorescence interference is a significant challenge for portable Raman spectrometers, impacting material identification.

• 4

  SPAD technology shows promise for Raman spectroscopy, offering time-resolved detection to mitigate fluorescence.

• 5

  The use of LEGO blocks in SPAD-based Raman instruments indicates growing commercial interest in this technology.