Raman Spectroscopy Animation Video from Laser Quantum
Raman spectroscopy and microscopy are techniques for studying vibrational, rotational and other low frequency modes in a molecular system. Laser light interacts with the system resulting in the upward or downward energy shift of the laser photons. This shift in energy gives information about the molecular bonds and hence the molecule itself. This information can identify the molecule being tested.
The laser excitation needs to be in the wavelength range 400-800 nm, and the power required depends largely on the type of analysis and the area of the excited sample. Commonly used wavelengths are 532, 473 and 660. The bandwidth of the excitation beam can be a limiting factor in the resolution of the Raman system, with lower bandwidths producing higher resolution. Single longitudinal mode lasers provide the highest resolution, but can introduce variation if not locked to that single mode.
Ruggedness and stability of the system are also important factors when selecting the right laser for any application. Many of Laser Quantum’s lasers are ideal for Raman spectroscopy and microscopy. These lasers include:
- gem – 473, 532, 660 & 671 ideal for OEM integration
- ventus – 473, 532, 660 & 671 ideal for scientific and research applications
- ventus solo – 532 nm, bandwidth narrowed to increase resolution
- torus – 532 or 660 nm, perfect for the highest resolution with stability from the mode locking
To watch the Raman spectroscopy animation video, click here.
To request more information or a quotation for this or other Laser Quantum products, contact IL Photonics.