High Performance Quantum-Cascade Laser

<strong>Background</strong><br>

The presence and concentration of a number of gases can be detected by measuring the absorption of mid-infrared light with wavelengths near 4 µm. We have developed intense and inexpensive light sources based on quantum cascade lasers (QCLs).<br><br> <strong>Technology</strong><br> The QCL is a new type of semiconductor quantum-well inter-subband device, with a unique material combination and sequence with very large energetic separation of subbands. The QCL-structures have wavelengths between 3-5 µm, emitting within the first atmospheric window. Besides the sensing of organic gases, laser emission in the first atmospheric window has application in free space communication, collision-avoidance radars, cruise-controllers, targeting and “blinding” infrared detectors and cameras. <br><br> <b>Benefits: </b><br> <ul> <li>First QCL operating in the 3,5-4,5 µm range at room temperature.</li> <li>240 mW output power; a cryogenic operation 6W output peak power (world record).</li> <li>Tunable.</li> <li>Need no cryogenic cooling (lead-salt lasers) or complex optics (“class-B lasers”)</li> </ul> <p><strong>IP Rights</strong><br> DE Patent DE 10 2004 009 531 B4<br> US Patent US 7,848,376 B2 <br> <br> <strong>Origin</strong><br> Humboldt-Universität zu Berlin</p>

Further Information: PDF

ipal GmbH
Phone: +49 (0)30/2125-4820

Contact
Dr. Dirk Dantz

Media Contact

info@technologieallianz.de TechnologieAllianz e.V.

All latest news from the category: Technology Offerings

Back to home

Comments (0)

Write a comment

Newest articles

Lighting up the future

New multidisciplinary research from the University of St Andrews could lead to more efficient televisions, computer screens and lighting. Researchers at the Organic Semiconductor Centre in the School of Physics and…

Researchers crack sugarcane’s complex genetic code

Sweet success: Scientists created a highly accurate reference genome for one of the most important modern crops and found a rare example of how genes confer disease resistance in plants….

Evolution of the most powerful ocean current on Earth

The Antarctic Circumpolar Current plays an important part in global overturning circulation, the exchange of heat and CO2 between the ocean and atmosphere, and the stability of Antarctica’s ice sheets….

Partners & Sponsors