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Search results for “Optics”

1,000+ results for "Optics"

Soft contacts designed for cone-shaped cornea

Researchers at the University of Rochester developed custom-designed soft contact lenses to correct visual acuity in individuals with keratoconic eyes. The lenses feature irregular front surface profiles that address specific aberrations of the cornea and crystalline lens, resulting in improved vision for subjects.

SourceUniversity of Rochester·JournalOptics Letters·DateMay 17, 2007

Laser goes tubing for faster body-fluid tests

Researchers at the University of Rochester have created a laser-based technique that measures multiple chemicals in body fluids in under 60 seconds, offering non-destructive and fast testing capabilities. The technique uses Raman spectroscopy and low-refractive-index tubes to improve signal strength and accuracy.

SourceUniversity of Rochester·JournalApplied Optics·DateApr 2, 2007

Listening to the sound of skin cancer

Researchers have developed a new method to detect metastasizing melanoma cells in the blood using photoacoustic detection, which can identify as few as 10 cancer cells. The technique uses laser techniques and ultrasound methods to emit noise from cancer cells, allowing for early diagnosis and treatment.

SourceOptica·JournalOptics Letters·DateOct 16, 2006

On airplanes, fiber optics poised to reach new heights

Researchers have invented an optical on-off switch that can replace electrical wiring on airplanes with fiber optics for controlling elevators, rudders, and other flight-critical elements. This technology also has potential applications on highways as a 'weigh-in-motion' sensor for measuring the weight of fast-moving commercial trucks.

SourceOptica·JournalOptics Letters·DateSep 18, 2006

Far away galaxy under the microscope

Scientists have discovered large, rotating disc galaxies that formed on a rapid time scale, just 3 billion years after the Big Bang. These findings reveal unprecedented details about the anatomy of these distant proto-disc galaxies, including their gas motions and star formation rates.

SourceESO·JournalNature·DateAug 16, 2006

From theory to reality

Researchers at Kent State University develop negative index materials, rewriting the laws of optics and enabling super-resolution lenses, non-destructive optical tweezers, and more. The five-year project aims to create NIMs for visible light spectrum.

Carbon-rich molecules 'supersized' for the first time

Scientists have successfully produced giant superstructures of unnatural carbon, exceeding twice the size of previously developed fragments. These supersized molecules exhibit high density of pi-electrons useful for electronics and optics, with potential applications in optical electronics and switches used in telecommunications.

Magnetic fields revealed in technicolour

A team of scientists has successfully created a new material that induces magnetic vibrations at visible light frequencies, allowing for the creation of ultra-small optical lenses and miniature lasers. This breakthrough could lead to significant advancements in optics, optoelectronics, and biosensing.

SourceUniversity of Manchester·JournalNature·DateNov 16, 2005

Atoms under control

Researchers at the Max Planck Institute have cooled single rubidium atoms in an optical resonator for up to 17 seconds, a record-breaking achievement. This milestone demonstrates the potential of atomic manipulation for quantum computing applications.

SourceMax-Planck-Gesellschaft·JournalNature Physics·DateOct 11, 2005

Timing nature's fastest optical shutter

Researchers at Vanderbilt University developed an ultra-fast optical shutter with a record-breaking speed of 40 picoseconds, enabling high-speed imaging applications. The new technology uses femtosecond laser pulses to freeze light at the molecular level, opening doors for breakthroughs in fields like biology and materials science.

SourceVanderbilt University·JournalOptics Letters·DateApr 6, 2005

Photons under control

Scientists at Max Planck Institute of Quantum Optics create single photons by trapping a calcium ion between two mirrors, allowing for controlled emission. The device enables user-controlled photon emission time and shape, paving the way for quantum information processing.

SourceMax-Planck-Gesellschaft·JournalNature·DateOct 28, 2004

Light oscillations become visible

Scientists have developed a technique to visualize the electric field of visible light, measuring its variation with unprecedented resolution. This breakthrough enables direct and accurate measurement of ultrabroad-band light pulses, opening doors to new applications in molecular electronics and X-ray lasers.

SourceMax-Planck-Gesellschaft·JournalScience·DateAug 27, 2004

Oregon optics center to build new laser lab

The university's new Laboratory for Quantum Control will enable original experiments at an internationally competitive level, focusing on controlling atoms and molecules using ultrashort light pulses. The lab aims to lead to increased computer capability, improved optical-fiber communications, and new forms of electronics.

When bosons become fermions

Researchers at Max-Planck-Institute for Quantum Optics and Johannes Gutenberg-University of Mainz successfully fermionize a gas of bosonic atoms, creating a Tonks-Girardeau gas. The resulting state exhibits unique properties that blur the distinction between bosonic and fermionic behavior.

SourceMax-Planck-Gesellschaft·JournalNature·DateMay 19, 2004

The fastest stopwatch in the world

Researchers create ultrafast stopwatch capable of measuring atomic processes with an accuracy of less than 100 attoseconds. The device uses a combination of X-ray flashes and laser light pulses to detect electrons emitted by atoms, providing insights into chemical reactions and material synthesis.

SourceMax-Planck-Gesellschaft·JournalNature·DateFeb 27, 2004

Messages from the abyss

Astronomers detect near-infrared flares from hot gas falling into the black hole, revealing its rapid rotation and chaotic environment. The findings provide unprecedented information about what happens just outside the event horizon.

SourceESO·JournalNature·DateOct 29, 2003

Light and nano: quantum mechanics vs. classical optics

Researchers at Rice University have developed a quantum model to predict nanophotonic behavior, making it easier to design new optical materials and devices. The study shows that plasmons in nanoparticles hybridize with each other, allowing for the prediction of properties in complex metallic nanostructures.

SourceRice University·JournalScience·DateOct 16, 2003