Daniel S. BurgessPump-probe experiments employing femtosecond lasers have exposed the dynamics of numerous ultrafast phenomena. Researchers at Univer-sité Claude Bernard Lyon 1 in Villeurbanne, France, and the US Army Research Laboratory in Adelphi, Md., have used the technique to investigate laser-induced...Read full articleRelated content from Photonics MediaARTICLESOpen Source Software Can Model Interactions of Femtosecond Laser PulsesHussar software, developed by scientists from the Polish Academy of Sciences’ Institute of Physical Chemistry and the University of Warsaw, can be used to perform the complex computations...Photonics.com 12/27/2018Volumetric Imaging Could Eliminate Needles for Blood TestsImagine blood tests without having to actually have blood drawn. 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This enables them to power applications that cannot be supported...Photonics HandbookSemiconductor Lasers: An Overview of Commercial Devices: Within only a few decades, the semiconductor laser diode has evolved into a family of robust, reliable devices, with individual conversion efficiencies of better than 60 percent, continuous output powers of several kilowatts, modulation rates of several tens of gigahertz, and wavelengths from 0.4 to beyond 2 µm. This article discusses the structures and characteristics of the most common commercial varieties.Laser diodes vary widely in their wavelengths, powers, spectra and beam quality. 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