What are the Different Types of Nanoscale Spectroscopy?
Several types of nanoscale spectroscopy exist, each with its specific applications and strengths:
1. Raman Spectroscopy: Utilizes inelastic scattering of light to provide information on vibrational modes of molecules, crucial for characterizing molecular composition and structure. 2. Near-field Scanning Optical Microscopy (NSOM): Combines optical spectroscopy with spatial resolution beyond the diffraction limit, allowing for detailed imaging at the nanoscale. 3. Surface-enhanced Raman Spectroscopy (SERS): Enhances Raman scattering using metallic nanostructures, enabling the detection of single molecules. 4. X-ray Photoelectron Spectroscopy (XPS): Provides elemental composition and chemical state information by analyzing the kinetic energy of photoelectrons emitted from a material's surface. 5. Fourier Transform Infrared Spectroscopy (FTIR): Examines the infrared absorption of a material to identify chemical bonds and functional groups.
