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Not All 2D Materials are as Strong as Graphene: Transition Metal Dichalcogenides Get Weaker when Thickness Decreases


Not All 2D Materials are as Strong as Graphene: Transition Metal Dichalcogenides Get Weaker when Thickness Decreases
A new study recently published in Advanced Materials reveals that MoSe
2, a prominent material of the transition metal dichalcogenides (TMDs) family, loses relative stiffness when its thickness is reduced. This work was carried out by researchers from the Adam Mickiewicz University (AMU) in Poznan (Poland) and the ICN2, under the coordination of Dr Bartlomiej Graczykowski and Dr Klaas-Jan Tielrooij, respectively.
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Image Credit: ICN2 Ultrafast Dynamics in Nanoscale Systems group
Since the discovery of graphene, a wonder material exhibiting remarkable properties due to its being as thin as a single layer of atoms, a wide variety of new 2D materials have been fabricated and studied. The general expectation is that, as for graphene, such materials mechanical properties are superior to their bulk counterparts. However, this is not th ....

Visnja Babacic , Klaas Jan Tielrooij , Bartlomiej Graczykowski , Bartolomej Graczykowski , Adam Mickiewicz University , Nanoscale Systems , நானோஸ்கேல் அமைப்புகள் ,

Harvard to Launch Quantum Science and Engineering Ph.D. Program


Photograph by Kristina DeMichele/Harvard Magazine. 
Harvard will launch a Ph.D. program in quantum science and engineering, one of the first in the world, the University announced today. The program has been designed to train the next generation of leaders and innovators in a domain of physics already having transformative effects on electrical engineering and computer science, biology and chemistry and poised to transform other fields, too, as researchers demonstrate increasing capability to harness and control quantum effects that defy explanations based on the principles of classical physics alone. Simultaneously, the University revealed that it plans a major renovation of 60 Oxford Street in order to house key portions of its ambitious quantum program. The transformation of that 94,000 gross-square-foot building, constructed in 2007, into a quantum-science and engineering hub is made possible by what the University described in a statement as “generous support from Sta ....

United States , Wikimedia Commons , John Doyle , Frank Doyle , Julia Mundy , Federico Capasso , Christopher Stubbs , David Goel , Davide Goel , Susanne Yelin , Mikhail Lukin , Max Planck Institute Of Quantum Optics , Read The University , Optical Society , National Science Foundation , Matrix Capital Management Company , Us Department Of Energy , Physics Frontier Center , Harvard Paulson School Of Engineering , Max Planck Harvard Research Center , Technology Center , Harvard Quantum Initiative , American Repertory Theater , Integrated Quantum Materials , Nanoscale Systems , Quantum Optics ,

Harvard's metalens technology enters commercial development | Harvard John A. Paulson School of Engineering and Applied Sciences


Harvard’s metalens technology enters commercial development
Mass. startup Metalenz, Inc., to bring flat optics to consumer electronics and more
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An illustration of the ultra-thin planar lens. The lens consists of titanium dioxide nanofins on a glass substrate. The lens focuses an incident light to a spot  smaller than the wavelength this tight focusing enables subwavelength resolution imaging. (Image courtesy of Peter Allen/Harvard SEAS)Download Image
A startup company founded by applied physicists at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) intends to transform consumer electronics by introducing a powerful technology for imaging and illumination that could replace conventional lenses with an ultrathin, flat optical microchip. ....

Robert Devlin , Pawel Latawiec , Alan Gordon , Peter Allen Harvard , Federico Capasso , Robertl Wallace , Capasso Lab , Defense Advanced Research Projects Agency , Harvard Office Of Technology Development , Harvard Center , National Science Foundation , Harvard Johna Paulson School Of Engineering , Metalenz Inc , Harvard John , Applied Sciences , Technology Development , Boston Based Metalenz , Intel Capital , Applied Ventures , Applied Physics , Vinton Hayes Senior Research Fellow , Electrical Engineering , Force Office , Scientific Research , Nanoscale Systems , Engineering Accelerator ,

Harvard's metalens technology enters commercial development


Harvard’s metalens technology enters commercial development
Mass. startup Metalenz, Inc., to bring flat optics to consumer electronics and more
Cambridge, Mass. – February 4, 2021 – A startup company founded by applied physicists at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) intends to transform consumer electronics by introducing a powerful technology for imaging and illumination that could replace conventional lenses with an ultrathin, flat optical microchip.
Harvard’s Office of Technology Development (OTD), which cultivates the University’s industrial research collaborations and oversees technology commercialization, has granted Boston-based Metalenz, Inc. an exclusive, worldwide license to a portfolio of innovations in flat optics developed in the Harvard lab of Federico Capasso. Metalenz made its plans public today and announced $10 million in investment from Intel Capital, 3M Ventures, Applied Ventures, and ....

Robertl Wallace , Capasso Lab , Defense Advanced Research Projects Agency , Harvard Center , National Science Foundation , Applied Physics , Vinton Hayes Senior Research Fellow , Electrical Engineering , Force Office , Scientific Research , National Science , Nanoscale Systems , Engineering Accelerator , Federico Capasso , Physical Science , சபஸ்ஸோ ஆய்வகம் , ஹார்வர்ட் மையம் , தேசிய அறிவியல் அடித்தளம் , பயன்படுத்தப்பட்டது இயற்பியல் , விண்டன் வைக்கோல் மூத்தவர் ஆராய்ச்சி சக , மின் பொறியியல் , படை அலுவலகம் , அறிவியல் ஆராய்ச்சி , தேசிய அறிவியல் , நானோஸ்கேல் அமைப்புகள் , பொறியியல் முடுக்குப்பொறி ,

Graphene-Based Hybrid Material Enables Efficient Light Conversion of Invisible Light


Graphene-Based Hybrid Material Enables Efficient Light Conversion of Invisible Light
Written by AZoNanoDec 16 2020
Nonlinear optical conversion – i.e. the process by which an incident light beam of a certain wavelength turns into rays of different wavelengths, due to its interaction with the material it passes through – is relevant to for many current and future technologies, such as imaging, information storage and processing, telecommunication, quantum technologies, and other fields.
Image Credit: HZDR / Werkstatt X
The ideal material for these applications should provide, first of all, a very high conversion efficiency, which means that a significant fraction of the incoming beam has to be converted into light of the desired wavelengths. ....

Klaas Jan Tielrooij , Jan Christoph Deinert , Technical University Of Berlin , University Of Bielefeld Germany , Max Planck Institute Of Polymer Research , Catalan Institute Of Nanoscience , Institute Of Photonic Sciences , Catalan Institute , Helmholtz Zentrum Dresden Rossendorf , Photonic Sciences , Max Planck Institute , Polymer Research , Technical University , Nanoscale Systems , தொழில்நுட்ப பல்கலைக்கழகம் ஆஃப் பெர்லின் , பல்கலைக்கழகம் ஆஃப் பிஎலெபில்ட் ஜெர்மனி , கற்றலான் நிறுவனம் ஆஃப் நானோ அறிவியல் , நிறுவனம் ஆஃப் ஃபோட்டானிக் அறிவியல் , கற்றலான் நிறுவனம் , ஃபோட்டானிக் அறிவியல் , பாலிமர் ஆராய்ச்சி , தொழில்நுட்ப பல்கலைக்கழகம் , நானோஸ்கேல் அமைப்புகள் ,