optics

Transparent and strong. The new glass made of peptide droplets

The superpowers of the new glass

Researchers from Tel Aviv University have for the first time created glass that knows how to repair itself and is formed spontaneously by simple contact with water
The list of crystals in the zebrafish: in the gill covers (top row) - long and narrow crystals, in the eye of the fish (middle row) shorter crystals, and in the skin (bottom row) - the shortest

The animals' secret recipe book for creating colorful and versatile crystals has been revealed

In the table of pictures: pictures of neurons that were taken in the system. On the left: a normal photograph of a neuron deep in the tissue. In the middle: the dramatic improvement provided by the new technology. On the right: a real image of the neuron taken without scattering tissue.

A technology developed at the Technion improves the quality of photographs in the depth of the tissue

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The picture shows an energy band diagram of a micro-resonator based on a GaAs semiconductor as studied in the experiment, in which a quantum condensation of light-matter coupled quasi-particles called exciton-polaritons (exciton-polaritons) - through two-photon absorption. The achievement paves the way for new coherent control schemes and the realization of an efficient laser source in the terahertz (THz) range of electromagnetic radiation

First observation of "two-photon absorption for quantum condensation"

The achievement may accelerate research in new quantum technologies and developments in security, biological sensing, wireless communication and more
The white cells in the shrimp tail. Photo: Ben Gurion University

The shrimp redefines the laws of optics

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The shrimp has a particularly bright white color on its back and limbs that are intended to attract fish, which it 'cleanses' of pests it feeds on. A thorough examination of the white matter using special electron microscopes revealed

For the first time: the experiment of the two cracks in the timeline

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In an article published in the magazine Nature Physics, a team of researchers from Britain, the USA, Germany and Australia demonstrated for the first time the two cracks experiment in the timeline. Instead of a spatial dispersion on a screen, the temporal crack created a dispersion in the light spectrum,
organic molecules. Illustration: depositphotos.com

Identification of organic compounds using visible light

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Researchers from the University of Santiago in Chile, working in the field of machine learning, have succeeded in developing an innovative method for identifying organic compounds based on the refractive index at a single optical wavelength
Nano optics. Photo: depositphotos.com

Prof. Uriel Levy, Hebrew University: "The material that will replace silicon and make it possible to make the transistors even smaller"

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Prof. Levy was one of the speakers at the conference commemorating the "Biennale Day of Light" held at Ben Gurion University * In his lecture he presented thin lenses based on metamaterials and showed how metasurfaces can improve
From the research of Prof. Kobi Shuyer and Prof. Pavel Ginzburg, Tel Aviv University

The latest technology to eliminate the reflection of light waves from surfaces

CT device. Illustration: depositphotos.com

A leap forward in the efficiency of X-ray devices and CT systems

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A technology developed by researchers at MIT and the Technion is expected to lead to a leap forward in the efficiency of X-ray machines and CT systems and in the speed of their operation. In the study published in Science, Prof. Ado Kaminer, head of the AdQuanta laboratory named after Robert and Ruth, is a partner
Photograph in motion of a worm. Courtesy of the Technion

Dramatic improvement in the resolutions of static and dynamic photography

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The technology developed by the researchers is based on the innovative SPI (Single-pixel imaging) concept - imaging using a single-pixel sensor. This concept, which enables photography without a camera, has extensive potential in diverse applications such as component development
The structure of the device developed at the Technion and which makes it possible to increase the visual acuity of telescopes without enlarging the lens. Courtesy of Dr. Erez Ribak.

Researchers at the Technion achieved an improvement in the separation capacity of telescopes without increasing the telescope's mirror

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The researchers developed an amplifier - a medium containing atoms that the photon coming from space passes through after the telescope key. The impact of the photon on the atom forces the atom to release a large number of photons identical to the original photon improvement
Microscope images of a laser beam with a wavelength of 532 nm advancing through a soap film. Credit: Technion barges

Researchers at the Technion presented for the first time in the world an observation of the branching of light rays

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The blue player A is in the gap because only the goalkeeper of the opposing team is between him and the goal. The dotted line is the "line of distinction" indicating the position of the rearmost defensive player. Source: NielsF, Wikimedia

Things that donors know: Is the human vision system able to recognize a difference in football?

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XNUMXD mapping of mitochondria with the new technology (the color symbolizes the depth dimension - different colors represent different depths) Credit: by courtesy of Nature Methods and authors

The autonomous microscope

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Electron photograph of the pattern of light trapped in a photonic crystal (photograph of the quantum microscope)

A photon and an electron meet inside a photonic crystal

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One of the researchers activates the laser beam as part of the experiments [Courtesy: Wits University]

A device that moves objects using a light beam

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Laser eye surgery, one of the applications of the discoveries of the winners of the 2018 Nobel Prize in Physics. Photo: shutterstock

Nobel Prize in Physics to three researchers for significant breakthroughs in optical physics

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The experimental system: the tiny ball at the end of the rod rotates rapidly near the light source - the horizontal fiber visible in the background. Light coming from the right side of the fiber is transmitted, while light coming from the left is blocked. Below: the motor that rotates the ball.

A new optical isolator transmits light entering it from one direction and blocks light entering from the opposite direction

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An array of optical skyrmions. The electric field in each cell in the array is not uniform in its direction but points in every possible direction in space. Illustration: The Technion

Nanometric "hedgehogs of light" that pave the way for new applications in information processing, transmission and storage

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'Peacock Jumper'. Source: Jurgen Otto.

Colorful jump

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Prof. John Pendry in the Porter building at Tel Aviv University. Photo courtesy of the British Embassy

Breaking the light: from the disguise of the maidens to something more practical and important - an optical switch

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From left to right: astronomical photons are emitted from the star, pass through the lens and reach an amplifier containing atoms. An atom hit by an astronomical photon in response emits a large amount of forced photons (in green), which hit the telescope detector and "report" with high precision the direction of impact of the original (astronomical) photon. Most of the spontaneous photons (in red) scatter to the sides and are not absorbed by the detector; Therefore, the noise is low and the separation is not significantly impaired.

A method developed in collaboration with researchers at the Technion is expected to bring about a dramatic improvement in the separation ability of telescopes

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Schematic demonstration of different light beams, with angular momentum, emanating from nanoantenna arrays.

The photonic radar

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Light and sound. Illustration: shutterstock

Using light to create sound

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Schematic description of an atomic force microscope - a tiny detector the thickness of a needle tip scans the surface of the sample that is on a moving substrate.

A microscope that produces videos of nanoscale processes

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Viruses try to penetrate the body and challenge the immune system. Illustration: shutterstock

A method has been developed that will allow for the first time to see how viruses are created

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optical communication. Illustration: shutterstock

Researchers managed to extract a single photon from a flash of light

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The glass wing butterfly. Photo: shutterstock

Learn from the butterflies about full transparency

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Photomicrograph of a flat lens. Credit: Patrice Geneve, Federico Capasso and Francesco Aita, Harvard SEAS

A new figure for the lens - flat as a pancake / Prachi Patel

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Section a silicon wafer at the nanometer level using a laser. Illustration: 223880533

Video cameras for nanoparticles / Ben Fogelson

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Flexible LED

Curving on purpose / Kathryn Burzak

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Shanghai at night: light pollution increased by the haze. Photo: shutterstock

Light pollution at night - light can also be a pollutant

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Even nature reserves are not protected from light pollution
Cerambycidae Lamiinae Image courtesy of Jean-Philippe Roguet

A color-changing beetle inspires the production of a new type of anti-counterfeiting ink

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Prof. William Morner, one of the three winners of the 2014 Nobel Prize in Chemistry. From Wikipedia

2014 Nobel Prize in Chemistry for the Discoveries of the Fluorescent Microscope: Pushing the Limits of the Light Microscope

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The new design includes placing the mirrors on both sides of the gallium nitride and placing the electrodes above and below the gallium nitride.

An economical method of creating laser-like beams

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The silicon-germanium chip developed at IBM's research center. Photo: IBM

A new record for data transfer speed

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plankton. Photo: shutterstock

Who signed the groundbreaking article?

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sound waves. Illustration: shutterstock

A Ben-Gurion graduate who is on post at MIT has discovered a new way to affect wave propagation

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Germanium laser. Photo: MIT

A prestigious award from the American Physical Society will be awarded to Professor Mordechai (Motti) Segev from the Technion

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Actors present 'Star Wars' characters at an event in London, October 2012. Nando Machado / Shutterstock.com

Has the path to the development of the lightsaber of the Jedi Knights and the Sith been found?

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"Science Reveals": Technion researchers have developed a new type of photonic material: spinoptic metamaterial

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The paradox of Schrödinger's cat, from the Nobel Prize presentation on the prize committee's website

Schrödinger's cat resurrected as particles in the laboratories of the 2012 Nobel Prize winners in physics

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Prof. David Wineland, from Wikipedia

Controlling particles in the quantum world

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Prof. Serge Harosh, winner of the 2012 Nobel Prize in Physics

Nobel Prize in Physics for Pioneers in the Field of Quantum Optics: Serge Herosh and David Weinland

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New fiber optic technology. Image: Penn State University

Photonics - the tricks of nature's color / Philip Ball

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Screenshot from a TED talk by Ed Boyden, one of the developers of the method for healing the nervous system using light

Light up/wake up the brain - control of animal behavior through optogenetics

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Figure 1: Two-dimensional Gaussian curve to illustrate the distribution of light in the beam. Values ​​in the center are high, and become low as the distance from the center is greater. Image source: Wikipedia.

So what do you do there at the university? Chapter 4: Does not stop at yellow - about non-linear optics

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The back side of the Holey Optochip. Illustration: IBM

Researchers at IBM have developed a new technology that will allow the transmission of a terabit of data in one second

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A quantum photonic chip. Illustration: University of Bristol in the UK

A photonic chip for the development of quantum processors

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