Custom Optical Filters

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

 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

Surface Finish Gold, Aluminium; Mirror Size 2.5x3.6, 16x11 mm; Tilt Angle ±1.5°, ±5°; Reflectivity 95%, 98%; Max. Actuation Current 60, 200 mA Sercalo Microtechnology’s MM series of miniature MEMS magnetic actuated mirrors and deflection units are used for advanced optical beam steering and pointing. These MEMS micromirrors offer large surface areas and are best suited in applications requiring DC pointing together with dynamic scanning. Using magnetic actuation, the 2D micromirrors’ deflection angle is set linearly with the driving current. They are designed for DC operation as well as scanning and can be used for static or dynamic beam steering with a large surface area of up to 16 x 11 mm and up to ±5° deflection. MM2536-2 dual-axes MEMS magnetic micromirrors with gold or aluminium surface finish are operated in open loop and are currently available with a mirror that has a reflective surface of 2.5 x 3.6 mm. These MEMS micromirrors are best suited in beam steering and scanning applications where small size and low power consumption are important. MM-160110-2 fine-pointing dual-axes MEMS magnetic micromirrors have a large reflective surface of 16 mm x11 mm with gold or aluminium surface finish. As an option, the devices can include an internal optical feedback sensor for closed loop operation. Key Features: Large Mirrors: 2.5 x 3.6 mm, 16.0 x 11.0 mm Surface Finish: Gold (Au) or Aluminium (Al) Reflectivity (800 to 2000 nm): ≥95%, ≥98% 2 Actuation Axes Tilt Angle DC (Mechanical): ≤±1.5°, ≤ ±5° Maximum Angle of Incidence: 45° Linear Control Fine Pointing (MM-160110-2) Resonance Frequency X: 330 Hz, 390 Hz (Typ.) Resonance Frequency Y: 180 Hz, 240 Hz (Typ.) Maximum Actuation Current: 60 mA, 200 mA Maximum Actuation Power: 0.5 W, 1 W Operating Temperature: -5°C to +85°C Dimensions: 14 x 14 x 5 mm, 31 x 46 x 11 mm Applications: 2D Static and Dynamic Optical Beam Steering; 2D Optical Scanner Devices; Instrumentation Measurements