Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Nut
Label with surface ornamentation
System and method for secure power systems infrastructure communications
Content protection apparatus and content encryption and decryption apparatus using white-box encryption table
Circuits for prevention of reverse leakage in V.sub.th-cancellation charge pumps
Systems and methods for universal enhanced log-in, identity document verification and dedicated survey participation
Nonvolatile memory device
  Randomly Featured Patents
Apparatus and method for forming a green tire
Nail having flexible sleeve mounted thereto
Mechanical assist device for inserting catheters
Advanced thermal container
Purification of acrylic acid and methacrylic acid
Process for preparing methylene diphenylamines by partial neutralization of acidic methylene diphenylamines
Turbo lighter
Device of bioabsorbable triglycolic acid poly(ester-amide)s, and methods of making the same
Automated manufacturing machine
Voice sound input apparatus