Using a two-color time-resolved Faraday rotation measurement technique, researchers at the University of California, Santa Barbara, have observed the transfer of electron spin information between molecularly linked CdSe quantum dots at room temperature. The work, which they reported July 31 online on Sciencexpress, suggests that such structures may be suitable for the fabrication of spintronic devices for applications such as quantum information processing. To produce the quantum-dot assemblies, Min Ouyang and David D. Awschalom immersed functionalized fused silica substrates in a solution...Read full articleRelated content from Photonics MediaArticlesDiffractive Optical Network Supports Quantitative Phase ImagingA team of researchers led by Aydogan Ozcan from the Electrical and Computer Engineering Department and California Nanosystems Institute at UCLA has developed a diffractive optical network to replace...Photonics Spectra August 2022 IssueSPIE Elects de Groot into its Presidential ChainPeter de Groot, chief scientist at Zygo Corp., was elected to serve as the 2023 vice president of SPIE. The election brings de Groot into the SPIE presidential chain. He will serve as president-elect...BioPhotonics Nov/Dec 2022 IssueIntegrated Photonic Quantum Sensing Takes Aim at Climate ResearchA NASA-funded collaboration will focus on advancing quantum sensing technology to enable new understanding of Earth and the effects of climate change. Led by the University of Texas at Austin (UT),...Photonics.com 3/28/2023Diffractive Optical Network Enables Snapshot Multispectral ImagingUCLA researchers led by Aydogan Ozcan and Mona Jarrahi have developed a multispectral imaging technology capable of turning a monochrome sensor into a multispectral one. Rather than the traditional...Photonics Spectra June 2023 IssueWebinarsMultiscale Modeling and Optimization in Photonic DevicesTwo challenging problems of photonic device modeling are addressed in this talk: multiscale modeling and optimization. When it comes to modeling an optically large system with subwavelength features,...Photonics.com 1/10/2022KEYNOTE: Spectroscopy for Biomedical Monitoring ApplicationsLaura Fabris shares recent work with and a general outlook on spectroscopy for biomedical applications. She focuses on portable and low-cost implementation used for disease and drug monitoring,...Photonics.com 4/13/2022Photonics for OphthalmologyPhotonics Media invites you to join us for our upcoming FREE digital conference, "Photonics for Ophthalmology." The event will feature several 15-minute online presentations on the use of light-based...Photonics.com 6/9/2016Green Light on Lidar: Developing Low-Cost Systems for Autonomous VehiclesFor driverless cars to see mainstream adoption, engineers must solve critical lidar design challenges — including improving the detection range and field of view, ensuring adaptability to...Photonics.com 10/3/2018Photonics Dictionary Termsbulk nonreciprocal deviceA device that functions throughout the continuous radiation of a linearly polarized plane wave, and whose nonreciprocity arises from the Faraday rotation of linearly polarized radiation.Photonics Dictionarymagneto-optic shutterA type of high-speed photographic shutter that uses Faraday rotation to produce exposure times as fast as 1 microsecond. It consists of two polarizers, set with their planes of polarization at right...Photonics DictionaryFaraday rotationThe effect discovered by Faraday in 1845 whereby nonoptically active materials or substances become capable of rotating the polarization plane of polarized radiation (light) passed through them when...Photonics Dictionaryoptical diodeSee Faraday rotation; optoisolator.Photonics DictionaryMediaFaraday RotationVideo definition of Faraday Rotation presented by Eric Zhang, Princeton University.Photonics.com 11/14/2014Connie Chang-Hasnain, University of California, BerkeleyConnie Chang-Hasnain, OSA Fellow, University of California, Berkeley, USA, muses over the simplistic beauty of optics and how it inspired her work in semiconductor lasers.Photonics.com 6/15/2016Crystal Light - LIGHT MATTERS 08.12.2015A new generation of quantum dot light emitters aims to outshine the rest. See where lighting and display technology might be headed – this week on Light Matters!Photonics.com 8/12/2015Meteoric Earth Collisions - LIGHT MATTERS 02.20.2013-Cell Light Probe -X-ray Photosynthesis -New imec Camera On this week’s show, space rocks rock Earth, a probe emits light in living cells, x-raying photosynthesis, and we learn about a new camera...Photonics.com 2/20/2013Photonics Buyers' Guide CategoriesQuantum DotsA quantum dot is a nanoscale semiconductor structure, typically composed of materials like cadmium selenide or indium arsenide, that exhibits unique quantum mechanical properties. These properties...