Infra-red source contains no moving parts
An
Armstrong Optical product story
Edited by the Engineeringtalk editorial team
Feb 26, 2007
The Axetris Microsystems infra-red source operates over a wide wavelength range and with the added reflector has an increased optical output of seven-fold from existing sources.
Armstrong Optical has released the Axetris Microsystems infra-red source with reflector.
Axetris Microsystems of Switzerland, a division of the Leister Process Technologies Group, is a supplier of micro-optical systems for the semiconductor, optical and biotechnology industries.
The infra-red source operates over a wide wavelength range - 2 to 16um - and with the added reflector has an increased optical output of seven-fold from existing sources.
The new compact solid-state device contains no moving parts, making it robust enough for industrial CO2 and NOx gas analysis applications.
The high modulation depth at 10Hz makes them suitable for techniques such as photoacoustic spectroscopy for chloroform, ethylene, nitrous oxide and refrigerant gases.
The lifespan for these sources has been measured at over 43,000 hours and their stable emission output and low power consumption makes them ideal for continuous remote on-line monitoring applications.
The infra-red source is based on a resistive heating element, which is integrated on a thin dielectric membrane on a micro-machined silicon structure.
Direct modulation of the optical output is simply achieved by varying the electrical input power and the low thermal mass enables high modulation rates.
The technology gives a true black body source and high emissivity of typically 0.95.
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