4.00µm CWL, 25.0mm Diameter, 2.0 FWHM, IR Bandpass Filter

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Stock #11-998 In Stock
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$433.00
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$433.00
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Diameter (mm):
25.00 +0.00/-0.20
Angle of Incidence (°):
0
Optical Density OD (Average):
≥3.0
Clear Aperture CA (mm):
21.0
Center Wavelength CWL (nm):
4,000.00 ±200
Full Width-Half Max FWHM (nm):
2,000.00
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Silicon (Si)
Coating:
Traditional Coated
Surface Quality:
60-40
Thickness (mm):
1.00 ±0.2
Transmission (%):
80 (minimum)
Type:
Bandpass Filter
Typical Applications:
SWIR
Blocking Wavelength Range (nm):
200 - 7000
Center Wavelength CWL (µm):
4.00 ±0.20
Full Width-Half Max FWHM (µm):
2.00 ±0.20

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 235:

Product Family Description

  • Ideal for Gas Analysis
  • Center Wavelengths of 2.7-12.4μm
  • Single Substrate Interference Filter

Developed with durability in mind, our Infrared (IR) Bandpass Filters provide the high transmission and deep rejection needed to isolate narrow spectral regions. The single substrate dielectric construction ensures easy maintenance, allowing for use in harsh environments. Infrared (IR) Bandpass Filters are ideal for environmental monitoring, security and FLIR applications.

Bandpass interference filters are used extensively in a variety of biotech, biomedical, and quantitative chemical applications to selectively transmit a narrow range of wavelengths while blocking all others. Interference filters are widely used in instrumentation for applications including clinical chemistry, environmental testing, colorimetry, elemental and laser line separation, flame photometry, fluorescence, and immunoassays. In addition, interference filters are used to select discrete spectral lines from arc or gas discharge lamps, including Hg, Xe, and Cd, and to isolate a particular line from Ar, Kr, Nd:YAG, and other lasers. Bandpass interference filters are often used in conjunction with laser diode modules and LEDs.