A glimpse into the dark!
International research team led by our Uni develops new method for ultrafast imaging of dark excitons. For the first time, the formation of these tiny, difficult-to-detect particles can be tracked precisely in time and space: https://s.gwdg.de/9JO9T2
This could bring improvements in technology, a step closer - from solar cells to LEDS to semiconductors. #Ultrafast #NanoImaging
Research at #NaturePhotonics: https://doi.org/g83j6q #UltrafastDarkfieldMomentumMicroscopy
Engineers face unique challenges when working with #ultrafast #lasers. Minimizing distortion and withstanding extreme power as well as reflectivity are all critical considerations in ensuring accurate and longer lasting functionality. High-intensity pulses can damage components, distort pulses, and compromise system coherence if the wrong mirror has been designed into the system. Learn more: https://ilphotonics.com/how-to-select-the-right-mirror-for-your-ultrafast-laser-system/
Group delay dispersion (#GDD) is an important optical phenomenon observed in the study of wave propagation, especially in #ultrafast #laser #optics. It refers to the variation in the timing of different parts of an ultrafast laser pulse as it reflects off optical components such as mirrors. Understanding GDD is crucial for analyzing how these reflective surfaces stretch or compress the pulse. Learn more: https://ilphotonics.com/group-delay-dispersion-gdd-in-optical-mirrors/
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Why is #GroupDelayDispersion (GDD) a critical consideration in the design of #coatings for laser mirrors, particularly for #ultrafast, high-energy #laser systems? How does GDD affect laser performance and the complexities involved in optimizing mirror coatings for superior #reflectivity, #bandwidth, and durability? Learn the answers to these and other questions: https://ilphotonics.com/what-is-group-delay-dispersion/
Ultrafast laser-powered 'magnetic RAM' is on the horizon after new discovery
https://www.livescience.com/technology/electronics/ultrafast-laser-powered-magnetic-ram-is-on-the-horizon-after-new-discovery #electronics #laser #MagneticRAM #ultrafast #MagnetoresistiveRandomAccessMemory
Yesterday we finished a fantastic 3-day workshop with our friends from Ottawa. This was the 2023 annual meeting of the Max Planck - uOttawa Centre for Extreme and Quantum Photonics, at the @MPI_ScienceOfLight .
We heard about #topological #photonics, #metasurfaces, #entanglement, #ultrafast laser pulses, solar #lasers, #neuromorphic computing, #Artificialntelligence for optics and many more exciting topics at the cutting edge of photonics.
New Lightwave Explorer release for September! This is my open source nonlinear optics simulator. Windows/Mac downloads here: https://github.com/NickKarpowicz/LightwaveExplorer/releases/tag/2023.09.01
And Linux available on Flathub.
Changes:
- New multithreading modes for CPU-based propagation, and optimizations
- better handling of math in user scripts
More details on the website :)
Also, I'm new to Mastodon (and never used the thing that was once Twitter) but apparently I should add tags? #NonlinearOptics #OpenSource #Ultrafast
`This report offers fundamental tools and methods for experimental execution and #theoretical analysis of #ultrafast #crystallography. We emphasize the use of phase-space representation of the density matrix using the #Wigner transform to visualize the coherent motions that are seen...These methods are generally applicable, and their purpose is fully demonstrated with this example of ultrafast #structural #dynamics of a reversibly #photoswitching #fluorescent #protein`
Referenced link: https://phys.org/news/2023-05-capturing-non-transparent-ultrafast-scenes.html
Discuss on https://discu.eu/q/https://phys.org/news/2023-05-capturing-non-transparent-ultrafast-scenes.html
Originally posted by Phys.org / @physorg_com: http://nitter.platypush.tech/physorg_com/status/1662103307962269697#m
Capturing non-transparent #ultrafast scenes @NatureComms https://www.nature.com/articles/s41467-023-37285-3 https://phys.org/news/2023-05-capturing-non-transparent-ultrafast-scenes.html
The electric Ford F-150 Lightning has some big shoes to fill. John Berg tests out the truck and gives his honest thoughts on if it can deliver on what Ford customers expect from an F-Series vehicle.
https://alamedapost.com/automotive/a-lightning-rod-for-the-f-series/
#EV #BEV #CCS #SVT #Top #XLT #F150 #Ford #150Kw #Frunk #Range #Lariat #Public #Charger #Pothole #F-Series #Platinum #Lightning #SuperCrew #UltraFast #ShoulderRoom #ElectrifyAmerica
Curious about the latest developments in the field of #ultrafast #laser technology?
Then 🎧 or 👀 👇
Featuring Anne L’Huillier from @lunduniversity discussing laser applications in condensed matter physics & #plasmonics.
#ERC10kGrantees #atomicsystems https://youtu.be/a8fepL0FX5s
🐦🔗: https://n.respublicae.eu/ERC_Research/status/1611324202744963074
Hi all,
I am a #PhDStudent in #ultrafast #nonlinearoptics #materialscience area at #Imperialcollege in #London. Hopefully, I used enough tags to find my people on #academicmastodon - great to meet you all!
#Introduction
An #introduction: I am an experimental physicist at #SFU. I am interested in the #optical and #electronic properties of #quantum #materials, and I use #ultrafast #lasers to characterize how they behave when they are #OutOfEquilibrium. I grew up on Coast Miwok land in California, live on the unceded traditional territory of the xʷməθkʷəy̓əm (Musqueam) people, aka #VancouverBC, and am interested in #academia, #inclusion, #science, #art, #music, #family, and #friends.
Hello world! Starting out here after years over on Twitter as „@ rikemw“ - I post about #science, academic life, teaching chemistryand in particular #physical #chemistry, the #research of my #lab in Potsdam, #ultrafast #multidimensional #spwctroscopy #2DIR but also I am a huge fan of taking #trains and #publictransit or #bikes
Let’s try this again with server capacity:
#Introduction
I lead a #research group at #Harvard University’s Rowland Institute, which is a beautiful, cross-interdisciplinary institute right at the Charles River that divides #Boston and #Cambridge MA.
We use #ultrafast magneto-optical #spectroscopy and other tools to understand the next generation of #materials needed for a more #sustainable global #energy production and consumption.
#ultrafast-ui #manjaro-sway #wayland В поисках сверхскоростного интерфейса перешел на https://github.com/Manjaro-Sway/manjaro-sway
Миграция с KDE была не сильно болезненной, спасибо простому конфигу и авторам сборки. Не осилил на NixOs и Alpine, последний обещал быть очень быстрым.
Но идея с переходом на быстрый софт пока не состоялась -- очень мало текстовых интерфейсов. Фактически только nvim юзаю, nnn, foot (быстрый терминал). Браузер FF. Nyxt не понял, Luakit позабавил, играюсь. Хочу быстрый браузер!
VuePoint’s Full-Size Travel Tripods Weigh Less Than a Smartphone
New tripod manufacturer VuePoint has launched a travel tripod that it claims is lighter than most smartphones, yet can safely support up to three and a half pounds of gear.
The company's founder Matthew Carver says the new tripod weighs only 255 grams (9 ounces), can extend to 54 inches on the larger of the two models, has a touted three-second setup time, and has just a one-second tear-down time. The travel tripod legs are designed with a carbon fiber taper-lock that VuePoint says enhances the lightweight construction of the unit while also ensuring it will stay securely in place during use.
The system also uses aluminum and titanium bolts to help keep the weight reduced and uses a kevlar weight hook for adding stabilization to the base of the tripod once it is set up. The company says it eliminated the normal center column most tripods have in order to reduce the weight even further and free up space for the upper leg components.
Carver says during development that "there were sacrifices made along the way" as the team deliberated what they absolutely needed in a travel tripod and what they could "throw out." Since the carbon legs lock by a tapered twist section, there is less adjustability than typical tripods, a decision that was made to optimize its weight and size.
The "Mid" version of the tripod has three sections while the "Max" version has four. The VuePoint team also says that the tripod is not meant to be used with heavy gear or in high wind conditions as it will not be as stable as bulkier systems. While not being able to make micro-adjustments to individual leg lengths is not ideal, the company argues that this is worth it for those who are hyper-conscious about size and weight savings.
It is worth reiterating that the company is very clear about the types of cameras that this tripod should be used with and the limits of its carry capacity. It is not intended to be used with large camera systems or heavy telephoto lenses, but instead with any combination of systems that weighs no more than 3.5 pounds, and even the higher end of that weight might be somewhat inconsistent.
A tripod that can't carry much weight and lacks many of the "standard" features might be a dealbreaker for serious photographers, but VuePoint is targeting mainly climbers and backpackers who are photographers on the side. For this audience, it's more important to reduce weight as much as possible at the cost of features and usability. As long as it will work in most circumstances for specific small cameras and lenses -- the only options for backpackers who are serious about weight anyway -- it will do the job.
The VuePoint tripod is available to back on Kickstarter starting at $169 for the Mid 42-inch tripod that includes a lightweight ball head and can grow as expensive as $219 for the VuePoint Max which includes the 54-inch tripod and a lightweight ball head.
All versions ordered through Kickstarter also include additional bonus phone and action camera mounts. Shipping of the first round of tripods are expected to start arriving this September.
Disclaimer : Make sure you do your own research into any crowdfunding project you're considering backing. While we aim to only share legitimate and trustworthy campaigns, there's always a real chance that you can lose your money when backing any crowdfunded project.
#equipment #news #adventure #kickstarter #lightweight #small #travel #traveltripod #tripod #ultrafast #ultralight #vuepoint #vuepointtripods
This year @ #36c3
An #ultrashort history of #ultrafast #imaging
<quote>
What happens in the time period it takes light to cross the diameter of your hair? This is the femtosecond, a millionth of a billionth of a second.
In order to take movies with femtosecond time resolution, we need ultrafast #cameras – flashes of light that act faster than any #camera #shutter ever could.
</quote>
Whaaaa? Are we getting close to breaking the speed of light?
