Scientists discover mechanism plants use to control 'mouths'
Dec 2022, phys.org
Just plant mouths.
via University of California San Diego: Yohei Takahashi et al, Stomatal CO2/bicarbonate Sensor Consists of Two Interacting Protein Kinases, Raf-like HT1 and non-kinase-activity requiring MPK12/MPK4, Science Advances (2022). DOI: 10.1126/sciadv.abq6161.
Image credit: AI Art - Braille - 2023
Accelerating tactile communication with skin-attached telehaptics
Dec 2022, phys.org
Yes telehaptic.
But wait -- "can measure and reproduce materials such as cotton, polyester, and spandex, as well as the shape of convexly protruding letter surfaces and the dynamic feeling of plastic rods rolling on the fingertips." It can make you feel the feel of cotton. That's called high-resolution haptics.
via National Research Council of Science & Technology Electronics and Telecommunications Research Institute: Hanbit Jin et al, Highly pixelated, untethered tactile interfaces for an ultra-flexible on-skin telehaptic system, npj Flexible Electronics (2022). DOI: 10.1038/s41528-022-00216-1
Wireless, ultrathin 'skin VR' to provide a vivid, personalized touch experience in the virtual world
Dec 2022, phys.org
Virtual touching, aka Skin VR
via City University of Hong Kong: Kuanming Yao et al, Encoding of tactile information in hand via skin-integrated wireless haptic interface, Nature Machine Intelligence (2022). DOI: 10.1038/s42256-022-00543-y
Meta-optics: The disruptive technology you didn't see coming
Dec 2022, phys.org
Meta-optics
The field, which blossomed after the early 2000s thanks to the conceptualization of a material with negative refractive index that could form a perfect lens, has grown rapidly in the last five years and now sees around 3000 publications a year.This accelerating volume of research is impossible for scientists and technologists to navigate, which prompted Nature Photonics to commission a review from leaders in meta-optics research.They found the field was on the verge of industrial disruption.The first commercial components using these properties are already on the market, with companies such as Metalenz, NILT technologies and Meta Materials Inc delivering flat metalenses, polarization imaging, microscopy and biosensing.
via ARC Centre of Excellence for Transformative Meta-Optical Systems: Dragomir Neshev, Enabling smart vision with metasurfaces, Nature Photonics (2022). DOI: 10.1038/s41566-022-01126-4
The first lab-created 'quantum abacus'
Feb 2023, phys.org
https://phys.org/news/2023-02-lab-created-quantum-abacus.html
Not just the Quantum Abacus, but also the Holographic Lasers and Light Traps - Using sophisticated holographic experimental techniques, they were then able to create light traps with intensity profiles corresponding to the first 15 prime numbers and the first 10 lucky numbers.
via International School of Advanced Studies, University of Trieste, and the University of Saint Andrews: Donatella Cassettari et al, Holographic realization of the prime number quantum potential, PNAS Nexus (2022). DOI: 10.1093/pnasnexus/pgac279
Researchers devise a new path toward 'quantum light'
Feb 2023, phys.org
Quantum Light - new state of light, which has controllable quantum properties over a broad range of frequencies, up as high as X-ray frequencies
via University of Camridge: Nicholas Rivera, Light emission from strongly driven many-body systems, Nature Physics (2023). DOI: 10.1038/s41567-022-01910-7
An illuminated water droplet creates an 'optical atom'
Jan 2023, phys.org
Optical Atom - when a beam of light is shone into a water droplet, rays of light bounce off the inner wall of the water droplet over and over again, going around and around inside the droplet; when its circumference is a multiple of the light's wavelength, a resonance phenomenon occurs, making the droplet shine brighter; when the droplet shrinks due to evaporation, it appears to flash every time its size is right to create the resonance phenomenon, and in a way similar to what occurs when an electron is emitted from an atom when illuminated by light of varying wavelengths; it's then a 100,00x model of an atom
via University of Gothenburg: Javier Tello Marmolejo et al, Fano Combs in the Directional Mie Scattering of a Water Droplet, Physical Review Letters (2023). DOI: 10.1103/PhysRevLett.130.043804
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