Raman Spectroscopy

Raman spectrometer: Horiba LabRam HR800 located in Prof. Greg Rorrer's labs in Gleeson 309 (Chemical Engineering).

Point person: Okan Agirseven James Haggerty Jason Francis (PH), Joe Kraai Paul LeDuff Debra Gale (Rorrer group), Morgan Brown (training & scheduling) & Lee Aspitarte (maintenance) Tristan deBorde (Minot group).

Horiba THMS600 heating stage manual user guide

• Horiba Raman Academy for an introduction to the technique, basics of the instrument, FAQ, webinars.

Please schedule your Raman usage. This allows you to reserve a spot, and also allows us to track the usage. The calendar below lets you look at the schedule, but you have to be listed on the calendar to sign up. See James H or Janet for permission.

Raman Calendar

1) Please be gentle with the switch to change between the 532 and 785 lasers, moving it carefully and slowly.Carelessly throwing the switch back and forth causes the mirrors to become misaligned and lower the quality of your data.

2) Don't mess with the AC. Thermal expansion can also be a cause for alignment issues(again, bad data).

3) Please note changes in the laser power if you use the fine tune knob on the 532nm laser.

4) Please save all data in your folder and not just on the desktop. All files on the desktop will periodically be placed in a “Desktop junk” folder

5) If the Raman camera does not work, then try restarting the computer - it could be a software issue.

6) Make sure to record the position and intensity (# counts) of the reference Si calibration peak every time calibration file on the Raman computer desktop. Also your name and the date. This helps to track the system folder. 65,000 to 70,000 counts is high; more usually 45,000. Should be at 520 cm^-1, can vary to 518-523 cm^-1 (temperature?).

7) Usual Raman mode is 3s accumulation and 3 times at each energy. Can increase time and frequency.