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
Adjustable box extender
Method and apparatus for error correction in MBMS receipt system
Curved structural part made of composite material and a process for manufacturing such a part
Electronic system and method for compensating the dimensional accuracy of a 4-axis CNC machining system using global and local offsets
Terminal box assembly
Engineered enzymes with methionine-gamma-lyase enzymes and pharmacological preparations thereof
Electrode for a plasma torch
  Randomly Featured Patents
Footwear sole construction
Wound drain catheter
Displacement sensor formed on planar flexible base
Polymeric hydrophile from carboxy terminated liquid polymer, diamine and phosphazene
Apparatus and method for measuring the mass flow rate of material flowing through at least one vibrating conduit
Image forming device and controlling method thereof
System and method for automated contact qualification
Truck rack
Light-cured urethane dimethacrylate ocular prosthesis
Process for making vicinal epoxides and dihalides