What are the main types of Near Field Spectroscopy?
Several types of NFS are commonly used in nanotechnology:
1. Near-Field Scanning Optical Microscopy (NSOM): Combines scanning probe techniques with optical spectroscopy to achieve high spatial resolution. 2. Tip-Enhanced Raman Spectroscopy (TERS): Uses a metallic tip to enhance the Raman signal, providing chemical information at the nanoscale. 3. Scanning Near-Field Infrared Microscopy (SNIM): Utilizes infrared light to probe molecular vibrations and chemical composition.