532nm带通滤光片

Use CWL 532nm with 1–10nm FWHM for 532nm laser line cleanup, source isolation, or detector-side laser signal selection.

532nm is commonly produced by frequency-doubled Nd:YAG or DPSS green laser systems. For laser-line filtering, key specs include CWL match near 532nm, FWHM, transmission at 532nm, OD blocking over the unwanted wavelength range, and power handling for the beam size.

Use CWL 532nm with 1–3nm FWHM on the source side for 532nm Raman or laser spectroscopy excitation cleanup.

For Raman and laser spectroscopy systems, the source-side bandpass filter helps clean the excitation laser before the sample. The detection path usually uses a longpass, edge, or notch filtering strategy to reject the 532nm Rayleigh line while passing Raman-shifted signal.

Use CWL 532nm with 10–20nm FWHM for fluorescence systems designed around 532nm green laser excitation.

For fluorescence microscopy, flow cytometry, or fluorescence detection systems using a 532nm laser source, the filter is usually placed on the excitation side before the sample. The goal is to define the green excitation band and reduce crosstalk into the emission path. The emission-side filter should be centered at the actual emission band, not at 532nm.

Use CWL 532nm with 20–50nm FWHM when selecting a green band fsrom a broader LED, xenon, halogen, or white-light source.

For LED or broadband visible illumination, the filter extracts a 532nm-centered green band from a wider spectrum. Use 20nm FWHM for more defined green-band selection, or 35–50nm FWHM when higher transmitted signal is more important for illumination, imaging, or detection.

Use CWL 532nm with 1–20nm FWHM before a silicon photodiode, CMOS/CCD camera, PMT, or spectrometer input when the target signal is near 532nm.

For detector-side filtering, the filter improves signal-to-background ratio by passing the 532nm signal and reducing unwanted visible or broadband background. Use 1–3nm FWHM for stronger wavelength isolation, or 10–20nm FWHM when more signal level and alignment tolerance are needed.