Infrared (IR) Pulsable Sources

INTEX High Pulse Rate IR Source

INTEX has developed a series of miniature pulsed infrared (IR) light sources with high intensity and ability to pulse at high frequencies. Their emission spectrum is that of a gray body.  The INTEX IR sources use patented a-CNC films as multilayer thermoresistive elements (see below).  The a-CNC’s durability makes it possible to have a 2 micron thick element with very low thermal mass that allows rapid heating and cooling for pulsing at higher frequencies than any other technology can do. The key advantages of these pulsed sources are:

Wide Spectral Output
1 - 20 µm provides the widest emission spectrum

Fast Response
These IR sources can be modulated at a frequency of over 100 Hz because the sources' membranes are only 2 microns thick with very low thermal mass.

High Efficiency
With emissivity of >0.8 the spectrum is close to that of a black body

Operates at Higher Temperatures
Achieves its efficiency by operating at a higher temperature than competing technologies

Long Life and Cost Effective
With a lifetime of up to 25,000 hours and absence of any need for separate modulation, maintenance and product cost are reduced

Windows for Explosive Gases and Harsh Environments
Intex offers as an option detectors with windows for applications with explosive gasses or harsh environments:

Windows for applications with Explosive Gases and/or harsh Environments:
Sapphire 0.1 - 5.0 µm
CaF2 1.5 - 10.0 µm
BaF2 0.2 – 12 µm
Silicon 1.1 - 14 µm
ZnSe 0.6 - 22 µm

Custom Design
Intex offers custom design of IR sources

 

Related Products

Thermopile Detectors / Sensors
Infrared Filters

Unique technology
INTEX IR sources are based on proprietary conducting amorphous carbon nanocomposite (a-CNC) films as multilayer thermoresistive elements. High emissivity, high thermal conductivity and low thermal mass (2 microns thick) made possible by the high strength of the a-CNC material allow rapid heating and cooling for pulsed operations at higher frequencies than can be achieved with competing technologies. The IR pulsable light sources are fabricated using MEMS technology.

Schematic cross section of the infrared light source chip and the source mounted in a TO-5 housing.
(1) Bonding pads: (2) a-CNC multilayer membrane; (3) silicon support; (4) active emitter area.

Technical Notes on a-CNC: Nanoamorphous Carbon Coatings (pdf)

Applications:

IR sources for infrared gas detectors for industrial, consumer, research and medical
applications:

Selector for INTEX IR Sources:

Click Product Number for data sheet

Product Size
mm		 Input Power
Max mW		 Drive Current
mA		 Energy
Efficiency
MIRL 17-900 * 1.7 x 1.7 900 135  
   MIRL 17-900-R (with Reflector) * 1.7 x 1.7 900 135 10-12 X

 

*  Windows  λ Range - µm Part Number
Sapphire 0.1 - 5.0 -SAP
CaF2 1.5 - 10 -CAF
BaF2 0.2 - 11 -BAF
Silicon 1.1 - 14 -SIL
ZnSe 0.6 - 22 -ZSE

Technical Notes:
Frequency vs. Modulation Depth (pdf)
Operating Guidelines & Power vs. Frequency (pdf)
Lifetime and Temperature vs Durability (pdf)
Nanoamorphous Carbon Coatings (pdf)
Beam Angular Distribution (pdf)

 

ELECTRO OPTICAL COMPONENTS, Inc.

 

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ELECTRO OPTICAL COMPONENTS, Inc. is the exclusive North American  distributor for FEMTO, InfraTec, IFW, Laser Beam Products, LEYSOP, NOC, Frankfurt Laser Co., IMM Photonics GmbH, INTEX, SDS (Systems Development & Solutions), UralAlmazInvest, and Oehler & Fischer AG. EOC is also a distributor for Dexter Research.