NanoEarth WITec alpha500 Raman-AFM Microscope at Virginia Tech
WITec alpha500 Raman-AFM Microscope (Raman Spectroscopy)
- 3 Lasers excitation sources (532 nm, 633 nm and 785 nm) with a multi-laser coupling unit for a maximum of experimental flexibility
- Multiple objective selections including air (10x, 20x, 50x and 100x), water immersion (63x) and oil immersion (100x) objectives
- A piezo stage (200 μm x 200 μm) coupled with a motorized microscope stage (10 cm x 15 cm) to allow for high-resolution confocal Raman mapping and large area investigations
- Polarization dependent measurements
- Research-grade optical microscope body with LED Köhler white-light illumination and video camera sample view
- AFM mode: contact, AC and Pulsed Forced mode
More information and resources for Raman Spectroscopy are available on NanoEarth's website.
- Identification of phases
- Composition (elemental) of phases
- Oxidation state (valence)
Conditions for Use:
- Submitted samples will be analyzed on a contract basis (i.e. lab personnel will do the work)
- Visitors are invited to work in the lab to work with lab personnel
- Visitors are invited to work in the lab to design and do the work yourself
- Users who wish to use an NCFL instrument without the supervision of an NCFL instrument specialists must complete the appropriate Training Sessions and become an approved operator. Training Sessions cover instrument operation and safety procedures as well as techniques for obtaining useful information. Training sessions are scheduled by appointment with an instrument specialist and include charges for the instrument and staff time. The total time needed for an individual to show competence on the instrument will be determined by the Instrument Specialist.
Current instrument rates available online: https://www.ncfl.ictas.vt.edu/policies.html
Remote operation is not possible.
Sample preparation is dependent on the specific sample and can be discussed with an instrumentation specialist.
Standard Collections/Lab Blanks:
NanoEarth loves to host groups for demonstrations, workshops, tours, and other educational uses of the lab. Please contact NanoEarth@vt.edu to discuss opportunities.
- Class demonstrations are available for undergraduates
- Class demonstrations are available for K-12
- Undergraduate student research projects are invited
- Graduate student research projects are invited
Support provided by:
The NCFL receives support from the National Science Foundation (NSF) through the National Nanotechnology Coordinated Infrastructure (NNCI) program. NSF support is vital to maintain the high quality of our facility and we strongly ask that you acknowledge their contribution in your publications and presentations that result, in full or part, from using our facilities.
In the case of regular users:
This work was performed in part at the Nanoscale Characterization and Fabrication Laboratory, which is supported by the Virginia Tech National Center for Earth and Environmental Nanotechnology Infrastructure (NanoEarth), a member of the National Nanotechnology Coordinated Infrastructure (NNCI), supported by NSF (ECCS 1542100 and ECCS 2025151).
In the case of users who received financial support (e.g., mini-grants, MUNI):
This work was supported by the Nanoscale Characterization and Fabrication Laboratory and the Virginia Tech National Center for Earth and Environmental Nanotechnology Infrastructure (NanoEarth), a member of the National Nanotechnology Coordinated Infrastructure (NNCI), supported by NSF (ECCS 1542100 and ECCS 2025151).