The best replacement for raman is ir.

The best alternatives to raman are rated as following:
★★★★★  ir
★★  ftir
★★  edfa
★★  nir
★★  rayleigh scattering
★  fluorescence
★  infrared spectroscopy
★  ir spectroscopy
  lahiri
  rayleigh
  dispersive
  dispersive raman

Your alternative for raman is not listed? Suggest!
Speaking about raman, one probably shouldn't forget about afm.

Other search terms related to raman and their ratings are:
★★★★★ afm
★★★ ftir
★ tarun
You have in mind a companion for raman and it is not yet here? Propose!



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