UV Neutral Density Filters

eSource Optics UV Neutral Density Optical Filters are available with Optical Densities (O.D.) ranging from 0.30 to 4.00 over the broadband UV wavelength range of 200m to 320nm.

eSource Optics UV Neutral Density Optical Filters are Metallic Aluminum & MgF2 Thin-Film Filters that achieve the desired optical density or attenuation of UV light via a combination of reflection, transmission and absorption. Unlike traditional Inconel Thin-Film ND Optical Filters that have too much absorption in the UV, especially below 250nm; all eSource Optics Al & MgF2 designed UV Neutral Density Optical Filters uniformly attenuate the intensity of transmitted light over the broadband UV wavelength range of 200m to 320nm.

All eSource Optics UV Neutral Density Optical Filters are available in standard 12.7mm, 25.4mm, and 50.8mm Diameters and are manufactured using high purity UV grade Fused Silica substrates for UV wavelengths 200nm to 320nm. All UV Neutral Density Optical Filter substrates are highly polished to a <=40-20 scratch & dig surface quality. UV Neutral Density Optical Filters are supplied with a UV Fused Silica cover window that is edge sealed to the Open-faced UV ND Filter. Please refer to the link for more information on covered & edge sealed . UV Neutral Density Optical Filters can also be special ordered as Open-Faced UV ND Filters; contact us for more information.

SPECIFICATIONS

Material: UV Grade Fused Silica
Wavelength Range: 200-300nm
Diameter (Ø)Tolerance: ±0.25mm
Thickness: ~5.0mm Open-Faced*
Optical Density (O.D.) Tolerance: ±10-15% of O.D.
Surface Quality: ~20-10 to 40-20 scratch-dig
Parallelism: <= 3 arc minutes
Clear Aperture: central 85%

(*All UV ND Filters are Covered & Edge Sealed; Total Thickness can be up to 10.0mm depending on size)

All dimensions in mm

SIZE	O. D.	TRANSMISSION (% T)	PRODUCT #	PRICE	ORDER
12.7 Ø	0.30	50± 8% T UV Neutral Density Optical Filter	12030NDUV	$495.00	12030NDUV
25.4 Ø	0.30	50± 8%T UV Neutral Density Optical Filter	25030NDUV	$550.00	25030NDUV
50.8 Ø	0.30	50± 8%T UV Neutral Density Optical Filter	50030NDUV	$695.00	50030NDUV
12.7 Ø	0.50	30± 5%T UV Neutral Density Optical Filter	12050NDUV	$495.00	12050NDUV
25.4 Ø	0.50	30± 5%T UV Neutral Density Optical Filter	25050NDUV	$550.00	25050NDUV
50.8 Ø	0.50	30± 5%T UV Neutral Density Optical Filter	50050NDUV	$695.00	50050NDUV
12.7 Ø	1.0	10± 2.5% T UV Neutral Density Optical Filter	12100NDUV	$495.00	12100NDUV
25.4 Ø	1.0	10± 2.5% T UV Neutral Density Optical Filter	25100NDUV	$550.00	25100NDUV
50.8 Ø	1.0	10± 2.5% T UV Neutral Density Optical Filter	50100NDUV	$695.00	50100NDUV
12.7 Ø	1.5	3± 0.7% T UV Neutral Density Optical Filter	12150NDUV	$495.00	12150NDUV
25.4 Ø	1.5	3± 0.7% T UV Neutral Density Optical Filter	25150NDUV	$550.00	25150NDUV
50.8 Ø	1.5	3± 0.7% T UV Neutral Density Optical Filter	50150NDUV	$695.00	50150NDUV
12.7 Ø	2.0	1± 0.4% T UV Neutral Density Optical Filter	12200NDUV	$495.00	12200NDUV
25.4 Ø	2.0	1± 0.4% T UV Neutral Density Optical Filter	25200NDUV	$550.00	25200NDUV
50.8 Ø	2.0	1± 0.4% T UV Neutral Density Optical Filter	50200NDUV	$695.00	50200NDUV
12.7 Ø	3.0	0.1± 0.06% T UV Neutral Density Optical Filter	12300NDUV	$565.00	12300NDUV
25.4 Ø	3.0	0.1± 0.06% T UV Neutral Density Optical Filter	25300NDUV	$595.00	25300NDUV
50.8 Ø	3.0	0.1± 0.06% T UV Neutral Density Optical Filter	50300NDUV	$745.00	50300NDUV
12.7 Ø	4.0	0.01± 0.008% T UV Neutral Density Optical Filter	12400NDUV	$565.00	12400NDUV
25.4 Ø	4.0	0.01± 0.008% T UV Neutral Density Optical Filter	25400NDUV	$595.00	25400NDUV
50.8 Ø	4.0	0.01± 0.008% T UV Neutral Density Optical Filter	50400NDUV	$745.00	50400NDUV

Availability: eSource Optics VUV-UV ND Filters are supplied on a per order basis. Lead-times can vary and are typically within ~4 weeks.

All eSource Optics UV Neutral Density Optical Filters are supplied with individual % Transmission Calibration Curves detailing normal incidence broadband UV spectral performance characteristics. These ND Optical Filters are typically used in applications such as calibration filters for low power UV lasers and VUV-UV Spectroscopy & Ellipsometry.

eSource Optics UV Neutral Density Optical Filters are covered and edge sealed type filters. Follow the link for more information on our Covered and Sealed UV Filters

eSource Optics UV Neutral Density Optical Filter Coatings can also be supplied in custom sizes and applied to Customer Furnished Material. Please contact us.

· Also see our VUV Bandpass Optical Filters & UV Bandpass Optical Filters

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