quantum cascade laser


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quantum cascade laser

[¦kwänt·əm ‚kas‚kād ′lā·zər]
(optics)
A semiconductor laser whose light is generated by electronic transitions between bound states created by quantum confinement in alternating ultrathin layers of semiconductor material.
References in periodicals archive ?
Kristament et al., "External-Cavity Quantum Cascade Laser Spectroscopy for Mid-IR Transmission Measurements of Proteins in Aqueous Solution," Analytical Chemistry, vol.
Amanda Gogates, product manager for Rosemount Quantum Cascade Laser Analyzers, Emerson Automation Solutions, said: "In ethylene manufacturing and natural gas processing for example, establishing the purity of the gas is essential to meeting contractual requirements as well as maintaining process optimisation and safety."
"Quantum Cascade Lasers are an emerging technology with significant potential and Stratium's Bruar chip is an excellent example of how they're increasingly being used in a wide range of everyday technological applications.
Terahertz free space communications demonstration with quantum cascade laser and quantum well photodetector // Electronics Letters.--Vol.
"Having a quantum cascade laser as a source increases the range so significantly that it becomes a viable device for search and rescue," says Patel.
In the quantum cascade laser, charged particles first move up several energy levels, then cascade down step by step, releasing photons at each plateau.
Washington, December 2 (ANI): Northwestern University researchers have achieved a breakthrough in quantum cascade laser output power, delivering 120 watts from a single device at room temperature.
They have retained the basic physics of classic devices and added material on such areas of contemporary interest as three-dimensional MOSFETs (metal-oxide-semiconductor field-effect transistors), nonvolatile memory, modulation-doped field effect transistor, single-electron transistor, resonant-tunneling diode, insulated-gate bipolar transistor, quantum cascade laser, and semiconductor sensors.
The present consultation concerns the acquisition of an absorption spectroscopy gas analyzer with a quantum cascade laser diode (qcl) light source, enabling fast and accurate measurement of greenhouse gases n2o, ch4 , as well as water vapor to determine the dry mixing ratio.
9 March 2017 - Italian infrared research and product development company Leonardo, through the US subsidiary Leonardo DRS, has signed a definitive agreement to purchase US-based quantum cascade laser products and technology developer Daylight Solutions, Inc.
Through the integration of Quantum Cascade Laser (QCL) technology, Spero breaks the existing paradigm in infrared microscopy to open new applications and markets.
The phenomenon was discovered, by a Princeton University led team, in a type of device called quantum cascade laser, in which an electric current flowing through a specially designed material produces a laser beam.
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