1064nm Laser Filters For Raman
The 1064nm/4nm laser filter is a filter specially designed for Raman spectroscopy System. Coligh manufactures a variety of laser line filters for Raman spectroscopy.
- The central wavelength is 1064nm, suitable for Raman systems with 1064nm Nd:YAG laser as the excitation light source.
- Bandwidth transmission range is about 1062-1066nm
- Transmission>90%@1064nm
- Outside transmission cutoff depth>OD6
- Hard Coating
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1064nm Laser Filters Descriptions
The 1064/4nm laser line Raman filter is suitable for Raman systems excited by 1064nm lasers, and is mainly used to optimize the quality of Raman signals and improve measurement accuracy.
- The laser wavelength of 1064+/-2nm is used for pre-excitation cleanup filtering of Raman spectra, and the transmittance at 1064nm is maintained at more than 90%, which can ensure that sufficient excitation light enters the sample smoothly, which can optimize the detection of weak Raman signals.
- In addition, there is a cutoff depth of OD>6 for non-target wavelengths of light, which can effectively reduce autofluorescence, background noise, stray light and target wavelengths.
- We use hard-coated dielectric films to reduce optical losses, increase the service life of the filter, tolerance to laser damage and long-term stability
1064nm Laser Raman Filter Spectrum Performance
1064nm Laser Filters Technical Datasheet
| Center wavelength: | 1064nm | Coating | Hard-coated |
| Full Bandwidth half maximum | 4nm | Angle of Incidence | 0 +/-2 deg |
| Transmission Peak | Average>93%
Minimum >90% |
Size avaliable | Dia12.5nnm Dia 25mm, or custom |
| Optical Density | OD>6 | Substrate thickness | 1.0mm unmounted |
| Clear Aperture | >80% of diameter | Mounted Option | Mounted in Black Anodized Ring |
| Surface quality | 60-40 | Mounted thickness | 3.5+/-0.1mm |
| Environmental and Physical Durability | MIL-STD-810F, MIL-C-48497A | ||
1064nm Laser Filters Applications
1064/4nm laser line Raman filter is mainly used in Raman spectroscopy system and has wide applications in multiple technical fields.
- When used for Raman spectroscopy analysis, 1064nm is used as an excitation light source to enhance the detection of weak Raman signals and is used to detect drug components, polymers, and review materials
- 1064nm is near-infrared light with strong penetration and less damage to biological tissues. It can be used to detect DNA, proteins, blood components, and cancer cell identification
- 1064nm Raman spectroscopy is also suitable for analyzing the crystal structure and impurities of various materials, such as graphene, semiconductors, and microscopic detection of ceramic materials such as detection of layers, defects, and analysis of components
- 1064nm Raman filters can also be used to detect the chemical composition of drugs, such as counterfeit drug identification, chemical reaction monitoring, etc.
