Product Descriptions:
| Characteristics: | 532nm Notch Filter |
| Central Wavelength (CWL): | 532+-5nm or specified* |
| Full Width at Half Maximum（FWHM): | specified |
| Peak Transmittance(%) : | >90% or specified |
| Optical Density (OD): | 40/20 or 60/40 scratch-dig |
| Color | Pink |
| Shape | Square, Round, Irregular Shape |
| Dimension(mm): | specified** |
| Thickness(mm): | 0.21-0.3mm |
| Substrate: | Ultra-clear glass |
| Remark： Spectral range:200-1200nm *Customized capability: 380-2500nm, stock for 10nm intervals. **Common for 86x86mm, 80x80mm, other can customized, max. 300x300mm *** Thickness available: 0.21、0.3、0.55、0.7、1.0、1.1、1.5、1.8、2.0、3.0mm…etc | |
Measured Spectral Graph – 532nm Notch Filter:
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| Picture 1: 532 nm Notch Filter Spectral Graph measurement |
What is 532nm Notch Filter?
A 532nm notch filter functions as an optical component that actively blocks or attenuates a very narrow spectral band centered at 532nm, while simultaneously transmitting light at wavelengths both above and below this point.
What is typical application for 532nm Notch Filters?
532 nm notch filters primarily serve in Raman spectroscopy to block the intense 532 nm green laser excitation line while transmitting weak Raman signals for material analysis. In addition, they also function in laser confocal microscopy, fluorescence imaging, biomedical detection, laser measurement, interferometry, and optical analytical instruments, where they actively suppress laser background noise, prevent detector saturation, improve the signal-to-noise ratio of weak signals, and eliminate stray 532 nm laser interference, thus ensuring reliable signal detection.
What is key parameter when choose for right 532nm Notch Filter?
When selecting 532nm notch filter, the center wavelength (CWL) precision will be one of key parameter to be designated, it determines how much of the spectrum around 532nm is allowed to pass. Secondly, Peak and Average Transmittance, this is the filter’s ability to transmit the light you do want outside the blocked region. Third, Optical Density / OD, this specifies how effectively the filter blocks the 532nm laser light. Forth, angle of incidence (AOI). Fifth, substrate material, e.g.,B270, BK7, fused silica or quartz. Sixth, physical dimensions and surface quality, etc.
Shenzhen Hengda Liyuan Optoelectronics introduced advanced optical technology that apply depositing nanomaterials through ion-assisted evaporation onto a multilayer hard film in a high vacuum environment which coating layer is firm and has good tightness, and small bandwidth drift.
Other typical notch filters in stock from Liyuan Optoelectronics include 450nm notch filter, 550nm notch filter, 650nm notch filter, etc.
