Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

High Performance Quantum-Cascade Laser

14.11.2012
<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

info@technologieallianz.de | TechnologieAllianz e.V.
Further information:
http://www.technologieallianz.de/angebote.php?sort=sag&id=1747&lang=en
http://www.technologieallianz.de

All articles from Technology Offerings >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First-Ever 3D Printed Excavator Project Advances Large-Scale Additive Manufacturing R&D

Heavy construction machinery is the focus of Oak Ridge National Laboratory’s latest advance in additive manufacturing research. With industry partners and university students, ORNL researchers are designing and producing the world’s first 3D printed excavator, a prototype that will leverage large-scale AM technologies and explore the feasibility of printing with metal alloys.

Increasing the size and speed of metal-based 3D printing techniques, using low-cost alloys like steel and aluminum, could create new industrial applications...

Im Focus: New welding process joins dissimilar sheets better

Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of light metals.
Scientists at the University of Stuttgart have now developed two new process variants that will considerably expand the areas of application for friction stir welding.
Technologie-Lizenz-Büro (TLB) GmbH supports the University of Stuttgart in patenting and marketing its innovations.

Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of...

Im Focus: First quantum photonic circuit with electrically driven light source

Optical quantum computers can revolutionize computer technology. A team of researchers led by scientists from Münster University and KIT now succeeded in putting a quantum optical experimental set-up onto a chip. In doing so, they have met one of the requirements for making it possible to use photonic circuits for optical quantum computers.

Optical quantum computers are what people are pinning their hopes on for tomorrow’s computer technology – whether for tap-proof data encryption, ultrafast...

Im Focus: OLED microdisplays in data glasses for improved human-machine interaction

The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing various applications for OLED microdisplays based on organic semiconductors. By integrating the capabilities of an image sensor directly into the microdisplay, eye movements can be recorded by the smart glasses and utilized for guidance and control functions, as one example. The new design will be debuted at Augmented World Expo Europe (AWE) in Berlin at Booth B25, October 18th – 19th.

“Augmented-reality” and “wearables” have become terms we encounter almost daily. Both can make daily life a little simpler and provide valuable assistance for...

Im Focus: Artificial Intelligence Helps in the Discovery of New Materials

With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.

Elpasolite is a glassy, transparent, shiny and soft mineral with a cubic crystal structure. First discovered in El Paso County (Colorado, USA), it can also be...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Paper – Panacea Green Infrastructure?

30.09.2016 | Event News

HLF: From an experiment to an establishment

29.09.2016 | Event News

European Health Forum Gastein 2016 kicks off today

28.09.2016 | Event News

 
Latest News

First-Ever 3D Printed Excavator Project Advances Large-Scale Additive Manufacturing R&D

30.09.2016 | Materials Sciences

New Technique for Finding Weakness in Earth’s Crust

30.09.2016 | Earth Sciences

Cells migrate collectively by intermittent bursts of activity

30.09.2016 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>