Infrared Filters and Coatings
Product number:
SW11880
Manufacturer:
Vortex
Product information "Infrared Filters and Coatings"
0.7-6.0 µm; Transmittance >65%->85%; FWHM 42-190 nm; Diameter 25 mm; Thickness 0.5 mm; Surface Quality <60-40 Scratch-Dig
Vortex designs and makes a wide range of IR filters with center wavelengths from 0.7 µm to 6.0 µm. While traditionally thermal evaporation has been used for IR filters, Vortex IR filters are deposited by sputtering using the supplier’s “Rockard”© technology.
Sputter deposition has a process energy approximately three times that of thermal evaporation, leading to the filters’ densely packed structure. This technology ensures the following superior environmental and optical properties:
- Highly durable coatings suitable for the toughest environments
- Extremely low temperature shift
- Reduced passband ripple for even response
- High blocking efficiency to increase signal to noise ratio
All IR filters are sold as 25mm diameter, 0.5mm thick and exhibit high angular tolerance, extremely low change with temperature and very high resistance to thermal shock.
AMS offers Vortex’s wide range of ‘standard’ narrow band IR filters for detection of common gases, chemicals and materials. For details and specifications see below:
| Standard Narrow Band Filters | ||||
| Part Number | CWL (nm) | Transmittance | FWHM (nm) | Suggested Use |
| NBP-1940-42-25 | 1940 nm (±8 nm) | >85% | 42 nm (±5 nm) | H2O (Water) |
| NBP-3055-145-25 | 3055 nm (±16 nm) | >75% | 145 nm (±17 nm) | C2H2 (Acetylene) |
| NBP-3260-150-25 | 3260 nm (±16 nm) | >75% | 150 nm (±17 nm) | C2H4 (Ethylene) |
| NBP-3330-150-25 | 3330 nm (±15 nm) | >75% | 150 nm (±15 nm) | CH4 (Methane) |
| NBP-3349-70-25 | 3349 nm (±15 nm) | >75% | 70 nm (±15 nm) | C2H6 (Ethane) |
| NBP-3400-155-25 | 3400 nm (±15 nm) | >75% | 155 nm (±15 nm) | (HC) General Hydrocarbon |
| NBP-3900-180-25 | 3900 nm (±18 nm) | >75% | 180 nm (±20 nm) | (Reference) |
| NBP-4000-180-25 | 4000 nm (±18 nm) | >75% | 180 nm (±15 nm) | (Reference) |
| NBP-4260-160-25 | 4260 nm (±20 nm) | >70% | 160 nm (±21 nm) | CO2 (Carbon Dioxide) |
| NBP-4530-85-25 | 4530 nm (±20 nm) | >75% | 85 nm (±10 nm) | N2O (Nitrous Oxide) |
| NBP-4660-165-25 | 4660 nm (±15 nm) | >75% | 165 nm (±15 nm) | CO (Carbon Monoxide) |
| NBP-5330-190-25 | 5330 nm (±25 nm) | >65% | 190 nm (±25 nm) | NO (Nitrogen Monoxide) |
General IR filters and coatings are available for applications such as non-contact temperature measurement, filter wheels and machine vision. For details and specifications see below:
| General IR Filters and Coatings | ||||
| Part Number | Transmission Peak | Blocking Range | Suitable Detectors | Description |
| BPF-VIST-IRBL-25 | 70% Ave. for 400-600 nm | 0.65-5 µm+ | Si Photodiode Type | Visible Transmission from 400 nm to 600 nm and Blocking for Near-IR and Mid-IR |
| BPF-1.3-2.5-25 | 90% Ave. for 1.3-2.5 µm | UV and Visible to 1.2 µm, 2.6-3.8 µm | PbS, MCT and Boltometer Type | Transmits from 1.3 µm to 2.5 µm and Blocks Outside this Range |
| SWP-1.4-2.6-25 | 90% Ave. for 1.4-2.6 µm | 2.75-20 µm | PbSe, MCT and Boltometer Type | 90% Average Transmission for 1.4 µm to 2.6 µm, Blocks from 2.7 µm to 20 µm |
| LWP-1.65-25 | 90% Ave. in Pass Band | UV, Visible + Desired Part of IR | PbS, MCT and Boltometer Type | Long Wave Pass Filter, Transmits Above 1.65 µm and Blocks Below Back to UV |
| BPF-2070-2510-25 | 90% Ave. For 1070-2510 nm, 60% @2050 nm and 2550 nm ±1% |
UV and Visible to 2.0 µm and 2.7-20 µm+ | PbS, InGaAs and Boltometer Type | Mid IR Wide Band Pass Filter for 2070 nm to 2500 nm, Used for Non-contact Temperature Measurement |
| BPF-3.0-5.0-25-Si | >90% Ave. 3-5 µm Band | UV and Visible to 2.8 µm and 5.3-7.5 µm | PbSe, MCT and Boltometer Type | 90% Average Transmission from 3 µm to 5 µm, Blocks Outside this Range to 7.5 µm on Silicon |
| BPF-3.0-5.0-25-SAP | >90% Ave. 3-5 µm Band | UV and Visible to 2.8 µm and 5.3-7.5 µm | PbSe, MCT and Boltometer Type | 90% Average Transmission from 3 µm to 5 µm, Blocks Outside this Range to 20 µm on Sapphire |
Custom filters can be manufactured with short lead-times, contact the AMS Technologies filter experts today to discuss a customized filter solution tailored to your application’s requirements.
Key Features:
- Center Wavelength Range: 0.7 µm to 6.0 µm
- Typical Bandwidth (FWHM): 42 nm to 190 nm
- Transmittance: >65% to >85%
- Diameter: 25 mm
- Thickness: 5 mm
- Surface Quality: <60-40 Scratch-Dig
- Highly Durable and Suitable for the Toughest Environments (RockArd© Deposition Technology)
- High Angular Tolerance
- Extremely Low Change With Temperature
- Very High Resistance to Thermal Shock
Applications: Detection of Common Gases and Materials Like H2O, C2H2, C2H4, C2H6, HC, CO2, N2O, CO, NO; Non-contact Temperature Measurement; Filter Wheels, Machine Vision
Manufacturer "Vortex"
Located in the middle of the UK, Vortex was founded in 2008 by a team of optical coating experts with many years of experience in the photonics industry. Vortex designs and manufactures infrared filters and coatings, visible filters, anti-reflection coatings, infrared linear variable filters (LVF), beamsplitters, and dichroics with outstanding speed and quality. While traditionally thermal evaporation has been used for IR filters, Vortex’s IR filters are deposited by sputtering, using the company’s own “Rockard”© technology, and thus ensuring highly durable coatings suitable for the toughest environments, extremely low temperature shift, reduced passband ripple and high blocking efficiency to increase signal-to-noise ratio.
Vortex offers the complete value chain from coating services (coating customers’ components with ultra-short response times) to supplying also the substrates, thus providing full manufacture of optics, all the way to delivering custom filters and windows in OEM/production volumes – on time for production programs where quality, price, consistency and on-time delivery are key.
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Anti-Reflection Coating
Together with our supplier Vortex we provide broadband and V-style anti-reflection (AR) coating from 300 nm to 6000 nm. We offer AR coatings service on your optics with an unrivalled rapid turnaround or can also supply “make complete” AR-coated optics with substrates sourced through one of our trusted suppliers.
Our AR coatings can be customized to your application’s requirements – contact the AMS Technologies experts today to discuss your customized anti-reflection coating solution!
Broadband AR CoatingA number of standard broadband processes covering many spectral regions is available that can also be adjusted for your specific requirements, e.g. the coating’s properties can be moved to a number of different bands if required. Some examples of broadband AR coatings:
Broadband AR Coatings
Optimized Wavelength
Substrate
Average Reflection Within Wavelength Band
AR 400-700 nm
Glass
<0.5%
AR 400-900 nm
Glass
<1.0%
AR 400-1100 nm
Fused Silica
<1.0%
AR 400-1700 nm
Sapphire
<3.5%
AR 400-2500 nm
Sapphire
<8.0%
V-CoatingAs a special type of anti-reflective coating, V-coatings improve transmission in a very narrow wavelength range around the design wavelength. This type of coating is called a "V-coating" because the curve of the reflection over the wavelength resembles the letter "V", with a minimum at the design wavelength. Both single- and multiple-wavelength V-coat processes are available for laser and LED applications covering a range from 300 nm to 6000 nm, with maximum reflection of <0.25% per surface at the designated wavelength. Some examples of V-coatings:
V-Coatings
Optimized Wavelength
Substrate
Reflection
V-Coat 633 nm
BK7
<0.25%
V-Coat 1064 nm
BK7
<0.25%
V-Coat 1550 nm
Sapphire
<0.25%
V-Coat 3300 nm
CaF2
<0.25%
V-Coat 532_1064 nm
BK7
<0.25%
V-Coat 532_1064_1550 nm
BK7
<0.25%
V-Coat 532_633_780_1064_1550 nm
BK7
<0.25%
Infrared AR CoatingInfrared anti-reflection coating can be provided anywhere between 0.7 µm and 6 µm on Glass, Silicon, Germanium, Sapphire, Barium Fluoride, Calcium Fluoride, Gallium Arsenide etc. to suit your specification. Some examples of infrared AR coatings:
Infrared AR Coatings
Optimized Wavelength
Substrate
Average Reflection Within Wavelength Band
AR 400-1700 nm
Sapphire
<2%
AR 400-2500 nm
Sapphire
<3%
AR 1200-2500 nm
Silicon
<3%
AR 1500-5000 nm
Silicon
<3%
V-Coat 1550 nm
Sapphire
<0.25% @1550 nm per Surface
AR 2000-5000 nm
Germanium
<3%
AR 3000-5000 nm
Silicon
<3%
AR 3000-5000 nm
Germanium
<3%
V-Coat 3300 nm
Silicon
<0.25% @3300 nm per Surface
Product number:
SW11884
Manufacturer: