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Narrow Bandpass and Laser Line Filters

These filters are narrow bandpass filters centered at the specified centre wavelength (CWL, which can be a laser line). They are used to reject the background plasma and secondary emissions that often result in erroneous signals in spectroscopic measurements. In the case of diode lasers and LEDs, these filters can be used to make the light output more monochromatic. Newlight Photonics bandpass filters provide a very high peak transmission with steep edge slopes for maximum spectral noise rejection.

Learn more about thin film filters

Standard Narrow Bandpass Filters

Part # CWL (nm) Bandwidth FWHM (nm) Peak Transmission Blocking (OD4) In stock
NBF340-10 340 10 > 40% 200 -1200nm Email/Call
NBF400-10 400 10 > 60% 200 -1200nm Email/Call
NBF405-10 405 10 > 60% 200 -1200nm Email/Call
NBF488-10 488 10 > 70% 200 -1200nm Email/Call
NBF500-10 500 10 > 70% 200 -1200nm Email/Call
NBF515-10 515 10 > 80% 200 -1200nm Email/Call
NBF532-10 532 10 > 80% 200 -1200nm Email/Call
NBF633-10 632.8 10 > 80% 200 -1200nm Email/Call
NBF800-10 800 10 > 85% 200 -1200nm Email/Call
NBF810-10 810 10 > 85% 200 -1200nm Yes
NBF980-10 980 10 > 85% 200 -1200nm Email/Call
NBF1064-10 1064 10 > 85% 200 -1200nm Email/Call

Newlight Photonics offers narrow bandpass filters at any wavelengths between 340-1064nm.  FWHM handwidth can be 5nm - 40nm.   Please contact us for filters that best suit your applications.

Narrow Bandpass Filter Specifications

Substrate Material: Low fluorescence BK7 or equivalent
Holder Size: Diameter 1" (Standard) or 0.5", Thickness 5-6 mm
Clear Aperture: >=20 mm for 1" mounted filters
Surface Quality: 60/40 scratch and dig
Out of Band Transmission: T < 0.01%  ( Blocking -40dB = OD4 )

 

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