A joint research team from SNU and University of Seoul developed a programmable photonic integrated circuit that can slow light on demand. This innovation enables the storage, delay, and control of light within a single photonic chip, overcoming limitations in optical computing technologies.
SourceSeoul National University College of Engineering·JournalAdvanced Science·TypeComputational simulation/modeling·DateJul 17, 2026
Researchers at the University of Strathclyde have developed a new technique for sculpting matter into complex shapes using 'twisted' light. When this light is shone on ultracold atoms, it breaks into clusters of BEC droplets that move following the light's features.
SourceUniversity of Strathclyde·JournalPhysical Review Letters·TypeExperimental study·DateAug 12, 2022
Researchers at Gwangju Institute of Science and Technology (GIST) have developed a new technique to easily visualize viruses using an optical microscope, called the Gires-Tournois immunoassay platform. The platform uses 'slow light' technology to detect coronavirus particles by slowing down light that gets reflected around them.
SourceGIST (Gwangju Institute of Science and Technology)·JournalAdvanced Materials·TypeExperimental study·DateApr 21, 2022
Researchers at UMass Amherst developed a gear-shaped photonic crystal microring that increases light-matter interactions without sacrificing optical quality. The device boasts an optical quality factor 50 times better than previous records.
SourceUniversity of Massachusetts Amherst·JournalNature Photonics·TypeExperimental study·DateJan 26, 2022
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Researchers at Harvard SEAS developed a new silicon coating that counters chromatic dispersion in transparent materials like glass. The ultra-thin coating uses precisely designed silicon pillars to capture and re-emitting red light, allowing slower-moving blue light to catch up.
SourceHarvard John A. Paulson School of Engineering and Applied Sciences·JournalNature Communications·DateNov 11, 2021
Theoretical physicists have shown how a position-dependent mass optomechanical system can slow down light in an optical cavity. This innovation enhances optomechanically induced transparency (OMIT) and has significant applications in quantum information processing, optical switches, and sensing.
SourceSpringer·JournalThe European Physical Journal D·DateOct 16, 2020
Researchers from Yokohama National University have developed a new method using slow light to create a compact and non-mechanical LiDAR sensor. This technology has the potential to improve the performance of LiDAR sensors in various fields, including autonomous vehicles, robots, and drones.
SourceYokohama National University·JournalOptica·DateJan 14, 2020
Scientists at Washington University in St. Louis have created an optical resonator system that can turn transparency on and off, allowing for control over a process called electromagnetically induced transparency. This technology has far-reaching implications for applications such as quantum computing, communications, and more.
SourceWashington University in St. Louis·JournalNature Physics·DateJan 13, 2020
Scientists have developed a new technique to slow down light by embedding dye molecules in a liquid crystal matrix, allowing for more efficient sensing and interferometry applications. The method uses little power, operates at room temperature, and can measure extremely low speeds in just one second of measurement time.
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Researchers developed a hyperbolic metamaterial waveguide to catch a 'rainbow' of wavelengths, halting and absorbing each frequency of light. This advancement could lead to new technologies in electronics, solar panels, and stealth coating materials.
SourceUniversity at Buffalo·JournalScientific Reports·DateFeb 15, 2013
Researchers at Ames Laboratory have designed a method to evaluate different conductors for use in metamaterial structures. The team evaluated various conducting materials, including graphene and high-temperature superconductors, but found that silver and gold remain the best conductors for use in metamaterials.
SourceDOE/Ames National Laboratory·JournalNature Photonics·DateApr 24, 2012
Qiaoqiang Gan and his team have developed nanoplasmonic structures that can slow broadband light waves, allowing them to trap multiple wavelengths of light on a single chip. This breakthrough could lead to significant increases in processing and transmission capacity for optical data storage and communications.
Scientists at UC Santa Cruz and Brigham Young University have created an optical device that slows down light by a factor of 1,200, enabling potential vast improvements in ultra-low-power performance. The breakthrough holds promise for all-optical quantum communication networks.
SourceUniversity of California - Santa Cruz·JournalNature Photonics·DateSep 5, 2010
The USC/Duke team has made significant improvements in controlling light pulses, achieving a slowdown of up to 20-fold increase over previous methods. By using a simple optical fiber and exploiting the Brillouin effect, they can potentially accommodate higher data rates and enable more efficient processing with photonics.
SourceUniversity of Southern California·JournalJournal of Lightwave Technology·DateJun 1, 2006
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Researchers at EPFL successfully demonstrate controlling the speed of light in an optical fiber, slowing it down by a factor of 3.6 and speeding it up to exceed the speed of light without violating relativity. This breakthrough has significant implications for optical computing and telecommunications.
SourceEcole Polytechnique Fédérale de Lausanne·JournalApplied Physics Letters·DateAug 19, 2005
Researchers calculate that ultra-cold atoms can be used to perform controlled coherent processing with light, preserving information content. This technology has the potential to revolutionize optical computing and create faster-than-electron computers.
Physicists at NIST propose new way to slow light down to almost one-millionth its usual speed using a stable pulsed laser in cryogenic gas. This method could help simplify and reduce the cost of high-speed optical communications, enabling faster signal routing and data synchronization.
SourceNational Institute of Standards and Technology (NIST)·DateOct 14, 2004
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A new technique uses a laser to create a gap in the absorption spectrum of a ruby, slowing down light to 5.3 million times its original speed. This simple design could lead to breakthroughs in telecommunications by easing congestion on fiber optic lines and simplifying signal merging.
SourceUniversity of Rochester·JournalPhysical Review Letters·DateMar 31, 2003