NIST has established advanced magneto-optical measurement capabilities at their Nanoscale Spectroscopy Group. The setup combines a triple-grating Raman spectrometer with an automated magneto-cryostat to enable precise measurements down to 8 cm⁻¹ or 0.3 THz. Multiple excitation lasers spanning 380-900 nm wavelengths allow resonant Raman scattering to be studied.
Key features include full polarization control for symmetry analysis, electrical feedthroughs for in-operando device transport measurements, and full spatial mapping capabilities. The system can operate from 1.65 K to 400 K and 0-9 T magnetic fields, with Faraday and Voigt geometries available.
The setup is highly versatile, allowing study of samples in cryogenic, liquid, and ambient conditions using backscattering with objectives or in liquid samples. This advanced magneto-Raman instrumentation enables detailed characterization of nanoscale devices and materials.
Keywords: Raman, Magneto-Raman, Nanoscale
