Performance of the product: double-sided mirror polishing (optical grade)
Due to the good infrared spectral characteristics and physical properties of monocrystalline silicon, the infrared sensor filter mainly uses monocrystalline silicon as the substrate. By alternately plating material films with different refractive index and thickness on the substrate, the substrate has the functions of long pass, short pass, band pass, antireflection, reflection and so on.
Monocrystalline silicon infrared filter is mainly used in sensors in laser, imaging, detection, temperature measurement, sensing, aerospace and other fields, so it is also called special filter for infrared sensor.
Silicon (SI) single crystal is a chemically inert material with high hardness and insoluble in water It’s 1-7μm-band has good light transmission performance, and it is in Far infrared band 300-300μm also has good light transmission performance, which is not possessed by other optical and infrared materials.
Silicon (SI) single crystals are usually used for 3-5μm medium wave infrared optical window and optical filter substrate Because of its good thermal conductivity and low density, it is also a common material for making laser mirrors or infrared temperature measurement and infrared optical lenses.
Transmission wavelength: 1100-20000 nm
Application products:
Note: the central wavelength displacement at 0 ° ~ 45 ° incidence: ≤ 110Nm
Narrow band filter 4260nm, infrared narrow band filter CWL: 4260nm@T >70 ~ 80%, FWHM: 90 ~ 380nm, out of band: UV ~ 11 μm@T >1% CO2 detection, flame alarm, carbon dioxide alarm
Monocrystalline silicon narrow band filter 3900nm ,infrared narrow band filter CWL: 3900@T >70 ~ 80%, FWHM: 90 ~ 170nm, out of band: UV ~ 11 μm@T < 1% methane detector and alarm
Monocrystalline silicon narrow band filter 3350nm ,infrared narrow band filter CWL: 3350@T >70%, FWHM: 120nm out of band: UV ~ 11 μ m@T < 1% methane CH4 Detection
Monocrystalline silicon narrow band filter 3470nm ,infrared narrow band filter CWL: 3470@T >70%, FWHM: 125nm, out of band: UV ~ 11 μm@T < 1% vehicle exhaust detection
Monocrystalline silicon narrow band filter 3570nm & 5640nm,Infrared narrow band filter CWL: 3570@T >70%, FWHM: 125nm, out of band: UV ~ 11 μm@T <1%,CWL： 5640@T >75%, FWHM: 230nm out of band: UV ~ 11μm@T < 1% alcohol detection
Monocrystalline silicon narrow band filter 4650nm ,infrared narrow band filter CWL: 4650@T >75%, FWHM: 225nm out of band: UV ~ 11μm@T < 1% CO detection
Single crystal silicon narrow band filter 5050nm ,infrared narrow band filter CWL: 5050@T >75%, FWHM: 205nm, out of band: UV ~ 11μm@T < 1% CO detection reference wavelength
Monocrystalline silicon narrow band filter 7350nm ,infrared narrow band filter CWL: 7350@T >75%, FWHM: 225nm out of band: UV ~ 11μm@T < 1% SO2 detection
Single crystal silicon bandpass filter 8-14μm ,infrared bandpass filter transmission area: 9 ~ 13μm@T >70%, out of band: UV ~ 20μm@T < 1% human body temperature detection, electronic thermometer, etc
Monocrystalline silicon long and short wave pass filter 5μm, long wave pass infrared filter UV ~ 4μm@T <1% 5~14 μm@T >78% human body temperature detection, automatic sensing equipment, infrared light switch
Monocrystalline silicon long and short wave pass filter 6.5um, long wave pass infrared filter UV ~ 6μm@T <1% 7~14μm@T >78% human body temperature detection, automatic sensing equipment, infrared alarm
Single crystal silicon antireflection film 3-5μm, Infrared Antireflection film 3-5μm, the average transmittance T > 80%, and the transmittance of substrates with different thickness changes slightly.
Single crystal silicon antireflection film 8-14μm, Infrared Antireflection film 8-14μm, the average transmittance T > 80%, and the transmittance of substrates with different thickness changes slightly.
Application fields:
1. Infrared alarm, photoelectric switch. (pyroelectric infrared sensor)
2. Night vision instrument window
3. Thermometer window
4. Thermal imager
5. Gas analyzer
