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molecules Features
Tunable Laser Light Sources Advance Nanophotonics Research
A considerable part of contemporary photonics research that investigates the interaction of light with nanoscale objects — nanophotonics — is motivated by the commercial potential of real-world devices. A vast number of experimental studies call for...
Photonics.com, September 2018
Fiber Pulling Profits from Precise Positioning
The advent of tunable narrowband lasers in the 1970s gave scientists a powerful tool to control and probe atoms and molecules, opening the door to an exciting world of quantum physics. When atoms and molecules are exposed to the intense...
Photonics Spectra, March 2008
Method Developed to Track 3-D Motion of Fluorescent Particles
Accurately measuring single fluorescent particles is often a challenge because their Brownian motion makes it difficult to keep them in focus for prolonged periods. As a result, investigators are forced to gather data from many samples to...
Photonics Spectra, January 2008
Transient Form of Two-Dimensional IR Spectroscopy
Shows Molecules in Motion
Understanding the way that molecules operate means digging deeply — examining not only their structures, but also how they change shape under various conditions. Techniques such as nuclear magnetic resonance and x-ray crystallography help...
Photonics Spectra, January 2007
FRET Detects Molecules with Multiple Quantum Dots
When it comes to rapidly detecting toxins and small molecules in soil, water and food, luminescent semiconductor quantum dots could hit the spot. A team from the US Naval Research Laboratory in Washington and from MIT in Cambridge, Mass., has shown...
Photonics Spectra, February 2006
Quantum Cascade Lasers: Valuable New Tools for Laser Spectroscopy
Semiconductor lasers emitting in the mid-infrared spectral range between approximately 4 and 13 μm are attractive for a number of applications, such as trace-gas sensing, production and environmental control, medical diagnostics, and free-space...
Photonics Spectra, February 2005
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