Tunable "metasurface" is akin to optical swiss army knife
MIT engineers and colleagues report important new advances on a tunable metasurface, or flat optical device patterned with nanoscale structures, that they compare to a Swiss army knife while its passive predecessor can be thought of as just one tool,.....»»
Geometric phase-encoded liquid crystal optical sensing
Sensing technology, integral to environmental monitoring, data acquisition, and precision data processing, is evolving rapidly. Researchers are at the forefront of developing swift, accessible, and cost-effective sensors. Among these innovations, cho.....»»
Magnesium still has the potential to become an efficient hydrogen store, says study
It is easy to be optimistic about hydrogen as an ideal fuel. It is much more difficult to come up with a solution to an absolutely fundamental problem: How to store this fuel efficiently? A Swiss-Polish team of experimental and theoretical physicists.....»»
Organic electronics lead to new ways to sense light
The past few decades have seen astonishing advances in imaging technology, from high-speed optical sensors that process over two million frames per second to tiny lensless cameras that record images using a single pixel......»»
Overcoming optical loss in a polariton system with synthetic complex frequency waves
A collaborative research team co-led by Professor Shuang Zhang, the Interim Head of the Department of Physics, The University of Hong Kong (HKU), along with Professor Qing DAI from National Center for Nanoscience and Technology, China, has introduced.....»»
Users Clamor for Return of Physical Fingerprint Readers
The biometric hierarchy for unlocking your smartphone appears to be the following: Physical fingerprint reader, ultrasonic fingerprint reader, optical fingerprint reader, and then below those everything else. At least, that’s what users on the.....»»
Attaching ZEISS Optical Inserts to an Apple Vision Pro requires special pairing process
Apple has partnered with ZEISS to provide corrective lenses made specifically for Vision Pro, and customers can buy these optical inserts directly from Apple when ordering a Vision Pro. However, what some people may not know is that the device requir.....»»
Performing complex-valued linear transformations using spatially incoherent diffractive optical networks
The bulk of the computing in state-of-the-art neural networks comprises linear operations, e.g., matrix-vector multiplications and convolutions. Linear operations can also play an important role in cryptography. While dedicated processors such as GPU.....»»
Astronomers investigate the properties of a peculiar cataclysmic variable
Astronomers from Turkey and Russia have performed optical observations of a magnetic cataclysmic variable known as SRGA J213151.5+491400. Results of the observational campaign, presented Jan. 11 on the pre-print server arXiv, yield important insights.....»»
Apple Vision Pro buyers being notified about having their prescriptions verified by ZEISS
Pre-orders for the Apple Vision Pro began this Friday in the United States, with prices starting at $3,499. Customers can also buy some accessories, such as a Travel Case and ZEISS corrective lenses. To buy these optical inserts, customers must uploa.....»»
Apple Vision Pro custom engraving offered on optical inserts from ZEISS
There’s lots of new Apple Vision Pro info out today as Apple starts collecting pre-orders in the United States. The most exciting detail? You can totally engrave your name on those optical inserts from ZEISS if you need corrective lenses with Visio.....»»
New carbon-based tunable metasurface absorber paves the way for advanced terahertz technology
Working in the terahertz (THz) range offers unique opportunities in various applications, including biomedical imaging, telecommunications, and advanced sensing systems. However, because of the unique properties of electromagnetic waves in the 0.1 to.....»»
Rocket Report: A new estimate of Starship costs; Japan launches spy satellite
One space tug company runs into financial problems; another says go big or go home. Enlarge / An H-IIA rocket lifts off with the IGS Optical-8 spy satellite. (credit: Mitsubishi Heavy Industries) Welcome to Edition 6.27.....»»
Scientists compute with light inside hair-thin optical fiber
Scientists at Heriot-Watt University in Edinburgh, Scotland, have found a powerful new way to program optical circuits that are critical to the delivery of future technologies such as unhackable communications networks and ultrafast quantum computers.....»»
Reimagining the optical diode effect for enhanced optical isolator efficiency
At the heart of global internet connectivity, optical communications form an indispensable foundation. Key to this foundation are optical isolators, created by combining multiple components......»»
My biggest fear about the Galaxy S24 Ultra has come true
Samsung has decided not to bring the 10x optical zoom camera back for the Galaxy S24 Ultra, and it's my worst fear about the phone come true......»»
Explaining why a black hole produces light when ripping apart a star
New model tracks the remains of a star looping around a black hole. Enlarge / A model of a tidal disruption, along with some observations of one. (credit: Illustration: CXC/M. Weiss; X-ray: NASA/CXC/UNH/D. Lin et al, Optical: CF.....»»
New technique uses optical orbital angular momentum lattice to enhance information storage capacity
In the realm of optical holography, the conventional limitations of polarization, wavelength, and incident angle are giving way to a new era of possibilities. A breakthrough technique known as optical orbital angular momentum (OAM) multiplexing has e.....»»
Enhanced photoelectrochemical water splitting with a donor-acceptor polyimide
Polyimide (PI) has emerged as a promising organic photocatalyst owing to its distinct advantages of high visible-light response, facile synthesis, molecularly tunable donor-acceptor structure, and excellent physicochemical stability. However, the syn.....»»
Developing a flat soliton microcomb source
Optical chip-related technology is the inevitable path to retain the validity of Moore's Law, which has become the consensus of academia and industry; it can effectively solve the speed and power consumption problems of electronic chips. This tech is.....»»
Apple Vision Pro ordering process: iPhone or iPad with Face ID needed, ‘valid, unexpired prescription’ for optical inserts
Apple Vision Pro pre-orders are a week away, and Apple is sharing new information about the buying process. An iPhone or iPad with Face ID will be needed to determine the best fitting hardware at checkout. For those who wear glasses, Apple has also s.....»»