Short and Long-Wave Pass Filters

Steep transition slope
High rejection/transmission
Excellent temperature stability
Cut-on/Cut-off wavelengths available from 400 nm to 1000 nm
Blocked to X-ray (LWP) and 1200 nm (SWP)

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Overview
Specifications
Ordering
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These short and long-wave pass filters have a very steep transition between the region of transmission and reflection — much steeper than colored glass filters. They have a hard, dielectric filter coating using interference effects rather than absorption to isolate the spectral bands. Unlike colored glass filters, the center wavelength will shift to shorter wavelengths with an increase in angle of incidence (Laser Line Filters for formula). This can be useful for tilt tuning these filters to your exact wavelength. A custom bandpass filter with excellent performance can be constructed using a combination of a short-wave pass and a long-wave pass filter.

These filters are available individually and in sets. The sets consist of one of each, of either the short or long-wave pass filters listed. They are shipped in a hardwood box for convenient storage and protection.

Newport long and short-wave pass filters are manufactured using methods and materials designed to deliver the highest spectral performance while providing a robust construction capable of withstanding variable climatic conditions. Transition slopes of ≤6% are established by a dielectric thin-film coating. This coating is optimized to provide a wide band of high average transmission. Blocking to X-ray on long wave pass filters, and to 1200 nm on short wave pass filters, is accomplished by a combination of reflection from dielectric thin-film coatings, and absorption from filter glasses. We manufacture these filters using scribed and laminated construction. This method provides a glass-epoxy-glass seal around the perimeter of the filter, which prevents the ingress of moisture into the thin-film filter elements. The resulting filter assemblies deliver excellent field life in harsh climatic conditions.

These filters are available individually and in sets. The sets consist of one of each of either the short or long-wave pass filters listed. They are shipped in a hardwood box for convenient storage and protection.

In addition to using these filters in the traditional manner, they can be used to create custom bandpass filters with excellent performance by using a combination of a short-wave pass and a long-wave pass filter in series.

Specifications

Minimum Active Area	20.2 mm
Surface Quality	80-50 scratch-dig; F/F per MIL-F-48616
Diameter	25.4 +0/-0.5 mm
Thickness	2.0 to 7.6 mm
Angle of Incidence	Normal
T_av Minimum Average Transmittance	Short Wave Pass: 65% Long Wave Pass: 80%
Rejection (spectral)	Short Wave Pass: 1.2λ_c to 1200 nm, ≤0.1% T or ≤10^-3 Long Wave Pass: X-Ray to 0.85 λ_c, ≤0.1% T or ≤10^-3
Slope*	≤6% where slope%=100% (λ_80%Tpk-λ_5%Tabs)/λ_5%Tabs
Effective Index of Refraction n_e	1.7
Wavelength Shift with Temperature	Short Wave Pass: 0.02 nm/°C Long Wave Pass: 0.025 nm/°C
Humidity	Per MIL-STD-810E, Method 507.3, Procedure III Modified to 7 cycles
Temperature Range	-50°C to + 100 °C
Cleaning	Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended (see Care and Cleaning of Optics)

Specifications For Dichroic Shortpass Filters

Substrate	Fused Silica
Dimensional Tolerance	+0.0/-0.1 mm
Thickness	1.05±0.1 mm
Transmission	> 85%, Average Polarization > 80%, Absolute, S and P-polarizatio mm
Reflection	> 97%, Average Polarization > 95%, Absolute, S and P-polarization
Angle of Incidence	45°
Surface Quality	40-20 scratch-dig
Wavefront Distortion	1/4 λ
Slope Factor	3%
Cut-Off Tolerance	±2%

Specifications For High Performance OD 4.0 Shortpass Filters

Material	UV Grade Fused Silica
Dimensional Tolerance	+0.0/-0.2 mm
Thickness	3.0±0.1 mm
Clear Aperture	>80% of central diameter
Surface Quality	40-20 scratch-dig
Wavefront Distortion	1/4 λ RMS @ 633 nm
Slope Factor	<1%
Pass Band Transmission	≥91% average
Rejection Band Blocking	≥91%OD≥4.0
Angle of Incidence	0°
Cut-Off Tolerance	±1%
Coating Type	Hard dielectric sputtered coating

Model	λ_c Cut-On Wavelength @ 50% of T_pk (nm)	Minimum Spectral range of Transmittance λ₁ to λ₂	Oriel Model	Corion Model
Short-Wave Pass Filters
05SWF-400-B	400 ± 2	325 - 385 nm	57371
10SWF-400-B	400 ± 2	325 - 385 nm	57373
10SWF-450-B	450 ± 5	415–440	57371	LS-450-F
10SWF-500-B	500 ± 5	415–490	57373	LS-500-F
10SWF-550-B	550 ± 5	415–540	57375	LS-550-F
10SWF-600-B	600 ± 5	415–590	57377	LS-600-F
10SWF-650-B	650 ± 5	415–640	57379	LS-650-F
10SWF-700-B	700 ± 6	440–685	57381	LS-700-F
10SWF-750-B	750 ± 6	475–735	57383	LS-750-F
10SWF-800-B	800 ± 6	475–785	57385	LS-800-F
10SWF-850-B	850 ± 6	475–835	57387	LS-850-F
10SWF-900-B	900 ± 7	475–880	57389	LS-900-F
10SWF-950-B	950 ± 7	475–930	57391	LS-950-F
10SWF-1000-B	1000 ± 7	475–980	57393	LS-1000-F
10SWF-1000-C	1000 ± 10	1035–1400	57389
10SWF-1050-B	1050 ± 10.5	1460–1085	57391
10SWF-1100-B	1100 ± 11	1140–1530	57393
Long-Wave Pass Filters
10LWF-400-B	400 ± 5	410–1200	57345	LL-400-F
10LWF-450-B	450 ± 5	460–1200	57347	LL-450-F
10LWF-500-B	500 ± 5	510–1200	57349	LL-500-F
10LWF-550-B	550 ± 5	560–1200	57351	LL-550-F
10LWF-600-B	600 ± 5	610–1200	57353	LL-600-F
10LWF-650-B	650 ± 5	660–1200	57355	LL-650-F
10LWF-700-B	700 ± 6	715–1200	57357	LL-700-F
10LWF-750-B	750 ± 6	765–1200	57359	LL-750-F
10LWF-800-B	800 ± 6	815–1200	57361	LL-800-F
10LWF-850-B	850 ± 6	865–1200	57363	LL-850-F
10LWF-900-B	900 ± 7	920–1200	57365	LL-900-F
10LWF-950-B	950 ± 7	970–1200	57367	LL-950-F
10LWF-1000-B	1000 ± 7	1020–2200	57369	LL-1000-F

*Slope is given by: | [ {λ (80%T_pk) - λ (5%T_pk)} ÷ λ (5%T_pk)] | × 100

Short-Wave Pass Filters

Long-Wave Pass Filters

Model	Description	avail raw	Availability	price raw	Price	Qty. MULTI ADD
05SWF-400-B	Dichroic Short-Pass Filter, 12.5 mm Diameter, 400±2nm Cut-On, 325-385 Transmittance	0	In Stock	159	$159.00	ADD
10LWF-1000-B	Long Wave Pass Filter, 25.4 mm Diameter, 1000±7 nm Cut-On, 1020 to 2200 nm	0	In Stock	115	$115.00	ADD
10LWF-400-B	Long Wave Pass Filter, 25.4 mm Diameter, 400±5 nm Cut-On, 410 to 1200 nm	0	In Stock	115	$115.00	ADD
10LWF-450-B	Long Wave Pass Filter, 25.4 mm Diameter, 450±5 nm Cut-On, 460 to 1200 nm	0	In Stock	115	$115.00	ADD
10LWF-500-B	Long Wave Pass Filter, 25.4 mm Diameter, 500±5 nm Cut-On, 510 to 1200 nm	0	In Stock	115	$115.00	ADD
10LWF-550-B	Long Wave Pass Filter, 25.4 mm Diameter, 550±5 nm Cut-On, 560 to 1200 nm	0	In Stock	115	$115.00	ADD
10LWF-600-B	Long Wave Pass Filter, 25.4 mm Diameter, 600±5 nm Cut-On, 610 to 1200 nm	0	In Stock	115	$115.00	ADD
10LWF-650-B	Long Wave Pass Filter, 25.4 mm Diameter, 650±5 nm Cut-On, 660 to 1200 nm	99	Call	115	$115.00	ADD
10LWF-700-B	Long Wave Pass Filter, 25.4 mm Diameter, 700±6 nm Cut-On, 715 to 1200 nm	0	In Stock	115	$115.00	ADD
10LWF-750-B	Long Wave Pass Filter, 25.4 mm Diameter, 750±6 nm Cut-On, 765 to 1200 nm	0	In Stock	115	$115.00	ADD
10LWF-800-B	Long Wave Pass Filter, 25.4 mm Diameter, 800±6 nm Cut-On, 815 to 1200 nm	0	In Stock	115	$115.00	ADD
10LWF-850-B	Long Wave Pass Filter, 25.4 mm Diameter, 850±7 nm Cut-On, 865 to 1200 nm	0	In Stock	115	$115.00	ADD
10LWF-900-B	Long Wave Pass Filter, 25.4 mm Diameter, 900±7 nm Cut-On, 920 to 1200 nm	0	In Stock	115	$115.00	ADD
10LWF-950-B	Long Wave Pass Filter, 25.4 mm Diameter, 950±7 nm Cut-On, 970to 1200 nm	0	In Stock	115	$115.00	ADD
10SWF-1000-B	Short-Pass Filter, 25.4mm Diameter, 1000±7nm Cut-On, 475-980nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-1000-C	Short-Pass Filter, 25.0 mm Dia., 1000±10 nm Cut-On, 465-988 nm Transmittance	0	In Stock	263	$263.00	ADD
10SWF-1050-B	Short-Pass Filter, 25.0 nm Dia., 1050±10.5 nm Cut-On, 485-1036 nm Transmittance	0	In Stock	263	$263.00	ADD
10SWF-1100-B	Short-Pass Filter, 25.0 mm Dia., 1100±11 nm Cut-On, 510-1085 nm Transmittance	0	In Stock	263	$263.00	ADD
10SWF-400-B	Dichroic Short-Pass Filter, 25.0 mm Diameter, 400±2nm Cut-On, 325-385 Transmittance	3	3 Weeks	161	$161.00	ADD
10SWF-450-B	Short-Pass Filter, 25.4mm Diameter, 450±5nm Cut-On, 415-440nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-500-B	Short-Pass Filter, 25.4mm Diameter, 500±5nm Cut-On, 415-490nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-550-B	Short-Pass Filter, 25.4mm Diameter, 550±5nm Cut-On, 415-540nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-600-B	Short-Pass Filter, 25.4mm Diameter, 600±5nm Cut-On, 415-590nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-650-B	Short-Pass Filter, 25.4mm Diameter, 650±5nm Cut-On, 415-640nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-700-B	Short-Pass Filter, 25.4mm Diameter, 700±6nm Cut-On, 440-685nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-750-B	Short-Pass Filter, 25.4mm Diameter, 750±6nm Cut-On, 475-735nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-800-B	Short-Pass Filter, 25.4mm Diameter, 800±6nm Cut-On, 475-785nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-850-B	Short-Pass Filter, 25.4mm Diameter, 850±6nm Cut-On, 475-835nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-900-B	Short-Pass Filter, 25.4mm Diameter, 900±7nm Cut-On, 475-880nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
10SWF-950-B	Short-Pass Filter, 25.4mm Diameter, 950±7nm Cut-On, 475-930nm Transmittance	0	In Stock	131	$131.00 $134.00	ADD
FS-LWF-B	Long-Pass Filter Set, 25.4 Dia, Includes One Of Each Long-Pass Filter	0	In Stock	1507	$1,507.00	ADD
FS-SWF-B	Short-Pass Filter Set, 25.4 mm Diameter, Inc. One Of Each Short-Pass Filter	0	In Stock	1599	$1,599.00	ADD

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*e-Catalog pages include the most current information available at the time of printing.