eSource Optics Ultraviolet  (UV) Optical Bandpass Filters are available at specific peak wavelengths over the UV wavelength range of 220nm to 320nm.  Both Narrow & Broad Bandwidth UV Optical Bandpass Filters designs are available and designated as "FNB" having a 20nm FWHM, and "FBB" having a 35-50nm FWHM. 

All UV Optical Bandpass Filters are available in standard 12.7mm, 25.4mm, and 50.8mm Diameters. UV Optical bandpass Filters are metal-dielectric-metal (MDM) design thin-film UV bandpass filters supplied as Unmounted and Open-Faced Filters. 

Open-Faced UV Optical Bandpass Filters include a high purity UV grade Fused Silica substrate over-coated with the MDM filter coating. All UV bandpass filter substrates are highly polished to a 20-10 scratch & dig surface quality with less than 3 arc minutes parallelism. 

Open-Faced UV Optical Bandpass Filters are fairly soft and must be handled with due care. For added durability and protection from the environment, UV Optical Bandpass Filters can be special ordered with a UV Fused Silica cover window that is edge sealed to the Open-faced filter.  For more information on covered & edge sealed  UV Optical Filters and/or UV filter peak wavelengths not listed below, please contact eSource Optics.

All eSource Optics UV Optical Bandpass Filters are supplied with individual % Transmission Calibration Curves detailing UV spectral performance characteristics.  UV Optical Bandpass Filters are mainly used in UV light source applications requiring a narrow spectral bandwidth and a high signal-to-noise ratio.

For more information on UV Optical Bandpass Filters, please refer to our Optics Tutorial page. 

                                        

UV OPTICAL FILTER SPECIFICATIONS Substrate Material : UV Grade Fused Silica        Diameter (Ø) Tolerance: ± 0.25mm Thickness: ~1.5 - 5.0mm                        Surface Quality:  <60-40 scratch-dig Parallelism: <15 arc minutes or better  Clear Aperture: central 80% Edge Chamfer: ~0.5mm x 45 degrees Filter FWHM:  FNB = 20nm                       FBB = 35-50nm Filter Blocking: Approx 10-3 to 10-4 short-wave VUV to long-wave UV to FIR typical Construction: Unmounted and Open-Faced; can be covered (contact us)

                                          

Peak Wavelength (nm)	FWHM (nm)	Min. Peak Transmission	Diameter (mm)	Product #	Price	Order*
220 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	12.7	12220FNB	$365.00	12220FNB
220 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	25.4	25220FNB	$395.00	25220FNB
220 +/- 2.5	20 +/- 5	15% T Optical Bandpass Filter	50.8	50220FNB	$525.00	50220FNB
220 +/- 5	35 +/- 10	30 % T Optical Bandpass Filter	12.7	12220FBB	$365.00	12220FBB
220 +/- 5	35 +/- 10	30 % T Optical Bandpass Filter	25.4	25220FBB	$395.00	25220FBB
220 +/- 5	35 +/- 10	30 % T Optical Bandpass Filter	50.8	50220FBB	$525.00	50220FBB
222 +/- 2.5 KrCl	20 +/- 5	15 % T Optical Bandpass Filter	12.7	12222FNB	$365.00	12222FNB
222 +/- 2.5 KrCl	20 +/- 5	15 % T Optical Bandpass Filter	25.4	25222FNB	$395.00	25222FNB
222 +/- 2.5 KrCl	20 +/- 5	15 % T Optical Bandpass Filter	50.8	50222FNB	$525.00	50222FNB
230 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	12.7	12230FNB	$365.00	12230FNB
230 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	25.4	25230FNB	$395.00	25230FNB
230 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	50.8	50230FNB	$525.00	50230FNB
230 +/- 5	35 +/- 10	30 % T Optical Bandpass Filter	12.7	12230FBB	$365.00	12230FBB
230 +/- 5	35 +/- 10	30 % T Optical Bandpass Filter	25.4	25230FBB	$395.00	25230FBB
230 +/- 5	35 +/- 10	30 % T Optical Bandpass Filter	50.8	50230FBB	$525.00	50230FBB
240 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	12.7	12240FNB	$365.00	12240FNB
240 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	25.4	25240FNB	$395.00	25240FNB
240 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	50.8	50240FNB	$525.00	50240FNB
240 +/- 5	35 +/- 10	30 % T Optical Bandpass Filter	12.7	12240FBB	$365.00	12240FBB
240 +/- 5	35 +/- 10	30 % T Optical Bandpass Filter	25.4	25240FBB	$395.00	25240FBB
240 +/- 5	35 +/- 10	30 % T Optical Bandpass Filter	50.8	50240FBB	$525.00	50240FBB
248 +/- 2.5 KrF Laser	20 +/- 5	15 % T Optical Bandpass Filter	12.7	12248FNB	$365.00	12248FNB
248 +/- 2.5 KrF Laser	20 +/- 5	15 % T Optical Bandpass Filter	25.4	25248FNB	$395.00	25248FNB
248 +/- 2.5 KrF Laser	20 +/- 5	15 % T Optical Bandpass Filter	50.8	50248FNB	$525.00	50248FNB
250 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	12.7	12250FNB	$365.00	12250FNB
250 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	25.4	25250FNB	$395.00	25250FNB
250 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	50.8	50250FNB	$525.00	50250FNB
250 +/- 2.5	40 +/- 10	30 % T Optical Bandpass Filter	12.7	12250FBB	$365.00	12250FBB
250 +/- 5	40 +/- 10	30 % T Optical Bandpass Filter	25.4	25250FBB	$395.00	25250FBB
250 +/- 5	40 +/- 10	30 % T Optical Bandpass Filter	50.8	50250FBB	$525.00	50250FBB
253.7 +/- 2.5 Hg	20 +/- 5	15 % T Optical Bandpass Filter	12.7	12254FNB	$365.00	12254FNB
253.7 +/- 2.5 Hg	20 +/- 5	15 % T Optical Bandpass Filter	25.4	25254FNB	$395.00	25254FNB
253.7 +/- 2.5 Hg	20 +/- 5	15 % T Optical Bandpass Filter	50.8	50254FNB	$525.00	50254FNB
260 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	12.7	12260FNB	$365.00	12260FNB
260 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	25.4	25260FNB	$395.00	25260FNB
260 +/- 2.5	20 +/- 5	15 % T Optical Bandpass Filter	50.8	50260FNB	$525.00	50260FNB
260 +/- 5	40 +/- 10	30 % T Optical Bandpass Filter	12.7	12260FBB	$365.00	12260FBB
260 +/- 5	40 +/- 10	30 % T Optical Bandpass Filter	25.4	25260FBB	$395.00	25260FBB
260 +/- 5	40 +/- 10	30 % T Optical Bandpass Filter	50.8	50260FBB	$525.00	50260FBB
266 +/- 2.5 Nd:YAG	20 +/- 5	15% T Optical Bandpass Filter	12.7	12266FNB	$365.00	12266FNB
266 +/- 2.5 Nd:YAG	20 +/- 5	15 % T Optical Bandpass Filter	25.4	25266FNB	$395.00	25266FNB
266 +/- 2.5 Nd:YAG	20 +/- 5	15 % T Optical Bandpass Filter	50.8	50266FNB	$525.00	50266FNB
266 +/- 5 Nd:YAG	40 +/- 10	30 % T Optical Bandpass Filter	12.7	12266FBB	$365.00	12266FBB
266 +/- 5 Nd:YAG	40 +/- 10	30 % T Optical Bandpass Filter	25.4	25266FBB	$395.00	25266FBB
266 +/- 5 Nd:YAG	40 +/- 10	30 % T Optical Bandpass Filter	50.8	50266FBB	$525.00	50266FBB

 (*Contact us to order) 
                                        
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