Infrared Filters and Coatings

AMS item number: SW11880

0.7-6.0 µm; Transmittance >65%->85%; FWHM 42-190 nm; Diameter 25 mm; Thickness 0.5 mm;... more

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

Product Group:

Infrared Filters and Coatings

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