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
5-phenyl-pentanoic acid derivatives as matrix metalloproteinase inhibitors for the treatment of asthma and other diseases
Laser receiver for detecting a relative position
Touchscreen with Z-velocity enhancement
Methods and systems for automated segmentation of dense cell populations
Onium salt-containing polymer
Electronic device, communication control method of electronic device, and information terminal device
Rose plant named `ESM R044`
  Randomly Featured Patents
Wireless resource sharing framework
Nitride semiconductor device and method for fabricating the same
Multilayer molded element
Routing of calls to core network based on the location of the femto cell
Image sensor and method for manufacturing the same
Wood veneer clipper infeed conveyor retractable holddown mechanism
Method and apparatus for simulating weapon explosions inside a chamber
Chemically modified nucleoside 5'-triphosphates for thermally initiated amplification of nucleic acid
System and device for image processing
Composition and application of a two-phase contaminant removal medium