A novel method for fabricating lasers uses saucer-shaped quantum dots (QDs) to produce continuous laser light that could be brighter, less expensive and more tunable than current devices. Although the ability to produce laser light using colloidal QDs (CQDs) was first demonstrated more than 15 years ago, commercial application has remained elusive because a very large amount of light is needed to excite the QDs, leading to heating loss and overheating. Most QD lasers are limited to pulses of light lasting just a few nanoseconds. Postdoctoral fellow Fengjia Fan (ECE) shows off a vial of...Read full articleRelated content from Photonics MediaARTICLESLiquid Crystal-Based Devices Manipulate Light with Flat Optics to Uncover Hidden ImagesAn ancient optical illusion has been updated using the flat optics of today to create a device that reveals a hidden image when light is shined on it. 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The...Photonics Spectra December 2021 IssueIndustrial Laser Generates Attosecond LightResearchers at the University of Central Florida (UCF) have shown that industrial-grade lasers can be used to generate attosecond pulses. “One of the main challenges of attosecond science...Photonics Spectra November 2020 IssueCost-Effective Coatings for Smart Windows Rival Industry-Standard PerformanceAn inexpensive, ultrathin spray-on window coating for blocking heat and conducting electricity could further reduce energy costs for smart windows and heat-repelling glass, making smart window...Photonics Spectra October 2020 IssuePRODUCTSLED Control UnitsThe DELOLUX pilot S series of control units for LED spot lamps models has been announced by DELO Industrial Adhesives LLC. 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OZ Optics manufactures its products in three locations, Ottawa (Canada),...Photonics Buyers' GuideLambda Research Optics Inc. (USA)Lambda Research Optics, Inc. is a leading manufacturer of laser optics with high power thin-film coatings and high precision fabrications. Lambda serves a wide range of industries, such as Biotech,...Photonics Buyers' Guide