Researchers from Utah have figured out how to use lasers to create sci-fi-style holograms inspired by phasers from ‘Star Trek’ and lightsabers from ‘Star Wars.’
Researchers have discovered the most precise way to control individual ions using holographic optical engineering technology.
The new technology uses the first known holographic optical engineering device to control trapped ion qubits. This technology promises to help create more precise controls of qubits that will aid the development of quantum industry-specific hardware to further new quantum simulation experiments and potentially quantum error correction processes for trapped ion qubits.
“Our algorithm calculates the hologram’s profile and removes any aberrations from the light, which lets us develop a highly precise technique for programming ions,” says lead author Chung-You Shih, a Ph.D. student at the University of Waterloo’s Institute for Quantum Computing (IQC).
Researchers have used a quantum mechanical property to overcome some of the limitations of conventional holograms. The new approach, detailed in Nature Physics, employed quantum entanglement, allowing two photons to become a single “non-local particle.” A series of entangled photon pairs is key to producing new and improved holograms.
Classical holograms work by using a single light beam split into two. One beam is sent towards the object you’re recreating and is reflected onto a special camera. The second beam is sent directly onto the camera. By measuring the differences in light, its phase, you can reconstruct a 3D image. A key property in this is the wave’s coherence.
The quantum hologram shares some of these principles but its execution is very different. It starts by splitting a laser beam in two, but these two beams will not be reunited. The key is in the splitting. As you can see in the image below, the blue laser hits a nonlinear crystal, which creates two beams made of pairs of entangled photons.
Huaqiangbei, the world’s largest electronics wholesale market area in the Chinese technology hub of Shenzhen, has become the latest Wonderland for geeks, the way Tokyo’s Akihabara was to otaku during the tech bubble at the turn of the millennium. Amid the warren of closet-sized shops and makeshift stalls, the latest catalogue of smartphones, LED lights, holograms, electronic parts and every type of gadget imaginable compete for attention and the spending yuan of consumers.
Shenzhen has become an international hotspot for the unmanned aerial vehicle industry, following the global success of drone giant DJI.
Researchers from Tokyo Metropolitan University have devised and implemented a simplified algorithm for turning freely drawn lines into holograms on a standard desktop CPU. They dramatically cut down the computational cost and power consumption of algorithms that require dedicated hardware. It is fast enough to convert writing into lines in real time, and makes crisp, clear images that meet industry standards. Potential applications include hand-written remote instructions superimposed on landscapes and workbenches.
T potential applications of holography include important enhancements to vital, practical tasks, including remote instructions for surgical procedures, electronic assembly on circuit boards, or directions projected on landscapes for navigation. Making holograms available in a wide range of settings is vital to bringing this technology out of the lab and into daily life.
One of the major drawbacks of this state-of-the-art technology is the computational load of hologram generation. The kind of quality we’ve come to expect in our 2D displays is prohibitive in 3D, requiring supercomputing levels of number crunching to achieve. There is also the issue of power consumption. More widely available hardware like GPUs in gaming rigs might be able to overcome some of these issues with raw power, but the amount of electricity they use is a major impediment to mobile applications. Despite improvements to available hardware, the solution can’t be achieved by brute force.
A new method called tensor holography could enable the creation of holograms for virtual reality, 3D printing, medical imaging, and more — and it can run on a smartphone.
Despite years of hype, virtual reality headsets have yet to topple TV or computer screens as the go-to devices for video viewing. One reason: VR can make users feel sick. Nausea and eye strain can result because VR creates an illusion of 3D viewing although the user is in fact staring at a fixed-distance 2D display. The solution for better 3D visualization could lie in a 60-year-old technology remade for the digital world: holograms.
Holograms deliver an exceptional representation of 3D world around us. Plus, they’re beautiful. (Go ahead — check out the holographic dove on your Visa card.) Holograms offer a shifting perspective based on the viewer’s position, and they allow the eye to adjust focal depth to alternately focus on foreground and background.
https://youtube.com/watch?v=NOujMHH3LAU
Holograms deliver an exceptional representation of 3D world around us. Plus, they’re beautiful. (Go ahead — check out the holographic dove on your Visa card.) Holograms offer a shifting perspective based on the viewer’s position, and they allow the eye to adjust focal depth to alternately focus on foreground and background.
Researchers have long sought to make computer-generated holograms, but the process has traditionally required a supercomputer to churn through physics simulations, which is time-consuming and can yield less-than-photorealistic results. Now, MIT researchers have developed a new way to produce holograms almost instantly — and the deep learning-based method is so efficient that it can run on a laptop in the blink of an eye, the researchers say.
Once, holograms were just a scientific curiosity. But thanks to the rapid development of lasers, they have gradually moved center stage, appearing on the security imagery for credit cards and bank notes, in science fiction movies—most memorably Star Wars—and even “live” on stage when long-dead rapper Tupac reincarnated for fans at the Coachella music festival in 2012.
Blog — Bundex Film Archives coming to posthuman university.
As editor, sound engineer and roadie with director Bunny Dexter’s “Bundex Films”, the three of us (Eugene Smith was cameraman) travelled to various parts of the world making political, environmental and quirky documentaries during the first age of digital video. Bunny was also a judge at some international film festivals, and we actually won an award in Poland for one of our films. At NY film school, Bunny’s teacher was Marty Scorsese, who would call at Bunny’s flat sometimes when in London. We made two versions of a 3D hologram of Marty, of which he has one and I the other. After Bunny’s passing I inherited the huge shoulder-harnress digital camera which remains in my garage and has less capability than a modern smartphone, digital tape-decks and lots footage together with all rights, except for the lost Orson Welles tapes matter and story of his aristocratic Sicilian producer. More about this and other films later. I have boxes to sort through, and am sure I have forgotten some projects which will come as a surprise when I rediscover them. Will post at posthuman university side when sorted, this footage give unique insights from a period of very rapid evolution and transformation in film-making.
Documentaries include the Homeless and their Dogs, Gipsy persecution in Hungary, a study of Tattoo’s and Tattoo artists, Momento Mori – a film of an elderly lady after her death, and our pursuit of Cocoa plant agricultural sabotage in Brazil. There is unseen footage from these and other films, and interviews with Bunny before her death which I will edit together. She had an interesting life including appearances in Andy Warhol movies, and early success with a short film with Hollywood beckoning. Woody Allen was in her NY film school class, and many of her friends went on to become big stars, but B was too much of a socialite, and was unable to get her screen plays produced. At least one political biography that I have is very good, I might update it for sub-Hollywood production in the future. Anyway, Bunny had an interesting “career” and was close friends with Yoko & John Lennon from her guerrilla art days, Jimmy Hendrix, also Graham Chapman and some of the Pythons.
For companies and governments, the stakes couldn’t be higher. The first to develop and patent 6G will be the biggest winners in what some call the next industrial revolution. Though still at least a decade away from becoming reality, 6G — which could be up to 100 times faster than the peak speed of 5G — could deliver the kind of technology that’s long been the stuff of science fiction, from real-time holograms to flying taxis and internet-connected human bodies and brains.
Most of the world is yet to experience the benefits of a 5G network, but the geopolitical race for the next big thing in telecommunications technology is already heating up. For companies and governments, the stakes couldn’t be higher.
