Resources Contact Us Home
Compact Mid-IR laser

Image Number 10 for United States Patent #7873094.

A compact mid-IR laser device utilizes a quantum cascade laser to provide mid-IR frequencies suitable for use in molecular detection by signature absorption spectra. The compact nature of the device is obtained owing to an efficient heat transfer structure, the use of a small diameter aspheric lens and a monolithic assembly structure to hold the optical elements in a fixed position relative to one another. The compact housing size may be approximately 20 cm.times.20 cm.times.20 cm or less. Efficient heat transfer is achieved using a thermoelectric cooler TEC combined with a high thermal conductivity heat spreader onto which the quantum cascade laser is thermally coupled. The heat spreader not only serves to dissipate heat and conduct same to the TEC, but also serves as an optical platform to secure the optical elements within the housing in a fixed relationship relative on one another. A small diameter aspheric lens may have a diameter of 10 mm or less and is positioned to provided a collimated beam output from the quantum cascade laser. The housing is hermetically sealed to provide a rugged, light weight portable MIR laser source.

  Recently Added Patents
Analysis device and an analysis apparatus using the analysis device
Method of using N-thio compounds for oligonucleotide synthesis
Local call local switching at handover
Apparatus and method for noise removal by spectral smoothing
Method and system for modifying satellite radio program subscriptions in a mobile vehicle
Electrode and method for manufacturing the same
Quinoid thiophene organic photoelectric material, preparation method thereof and application thereof
  Randomly Featured Patents
Transmission method and transmission apparatus for transmitting signals on the basis of a OFDM/TDMA-system in a GSM/system
Automatic underride protection for tilt trailers
Process for preparing 4-aminohex-5-ynoic acid
Burst transmission
Method for monitoring the conversion rate of an exhaust gas catalytic converter for an internal combustion engine
Hair cosmetic
Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
Media processing system supporting user captured media display sequencing when in idle state
Recoil impulse generator for a weapon simulator