730nm Infrared Light Source: The Preferred Choice for Biomedical Detection, Ensuring Precise Penetration and Efficient Excitation of Fluorescent Signals.
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The 730nm filter is a near-infrared narrow bandpass filter with a center wavelength precisely at 730nm, a bandwidth typically between 10–40nm, a peak transmittance of over 90%, and an out-of-band blocking depth of ≥OD4, effectively isolating environmental stray light. It is manufactured using multi-layer hard-coating ion sputtering technology, featuring dense film layers, high damage threshold, long-term stability, and a surface quality meeting the 40-20 scratch-dig standard.
Main function: It allows only a very narrow range of infrared light around 730nm to pass while blocking visible light and other infrared bands, enabling high-precision spectral selection.
Typical Applications
Chlorophyll Fluorescence Detection—Research on plant photosynthesis and agricultural remote sensing
Biomedical Imaging—Deep tissue imaging, reducing scattering and autofluorescence interference
Laser Systems—Purification and wavelength selection for 730nm laser diodes
Fluorescence Microscopy—Matching near-infrared fluorescent dyes such as Cy7 and Alexa Fluor 750
Dual-Wavelength Raman Spectrometers—Collaborating with 830nm for multi-band analysis
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