Confocal Raman Microscope Atomic Force Microscopy

WITec Alpha 300R

  • 532 nm laser - upgradeable
  • High resolution Raman chemical mapping with a virtually unlimited number of image pixels
  • Complete Raman spectra is acquired at every pixel of the image True diffraction limited optical resolution (200 nm lateral, 500 nm vertical at green excitation).
    • 10x – (NA=0.24)
    • 20x (AFM) – water immersion (NA=0.4)
    • 50x (NA=0.75) – 100x (NA=0.9)
  • The unrivaled throughput and sensitivity of the WITec instrument allows it to take up to 1300
  • Raman spectra in one second with the EMCCD detector
  • Two grating options (600/mm and 1800/mm):
    • Spectral resolution 0.5-2.4 cm-1
  • Highest throughput on the order of 70%.
  • The piezo stage scans at about 2.5-100 msec/pixel/spectra with a resolution of 3-4 nm
  • It is not necessary in the WITec system to translate the sample from the Raman to AFM position.
  • Large samples
  • Liquid samples
  • Confocal in reflection mode
  • Modular
  • Processing software free for all users

Instrument Location

Advanced Materials Lab 155.

Confocal Raman/AFM Microscopy User Rates

Internal with operator $50.00 / hr
Internal without operator $40.00 / hr
External with operator $70.00 / hr
External without operator $50.00 / hr
Training, 4 hour session $200.00 / hr

Scheduling and Contact

To schedule time on this instrument or to learn more about its capabilities and user fees, etc. Please contact:

Kateryna Artyushkova


Nalin Andersen