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wavelength News
Enlightra, DESY Hamburg Develop Improved, Scalable Comb Lasers
RENENS, Switzerland, Jan. 25, 2024 — Laser technology startup Enlightra has collaborated with DESY Hamburg to develop comb lasers that are more stable and efficient by design. The work demonstrated microresonators with programmable synthetic reflection providing tailored injection feedback to the driving laser. The technology is a marked improvement over conventional self-injection locking, and can be produced using standard lithographic production. Comb lasers are sources of multiple colors with equidistant spacing ranging
Poznan Supercomputing and Networking Center Set to Install First Quantum Computers
LONDON, Nov. 23, 2023 — British quantum computer developer ORCA Computing will provide the Poznan Supercomputing and Networking Center (PSNC) with two PT-1 quantum photonics systems to accelerate its research and application work in quantum computing across a range of...
Femtosecond Fiber Laser Ushers in New Class of Visible Sources
QUEBEC CITY, July 10, 2023 — Researchers from Laval University reported the development of the first fiber laser that can produce femtosecond pulses in the visible range of the electromagnetic spectrum. Fiber lasers producing ultrashort, bright visible-wavelength pulses could...
Beamsplitter Benefits from Topological Antichiral Edge States
GUANGZHOU, China, May 29, 2023 — Recent research has investigated novel approaches to beam-splitting in the context of topological photonics. Several beam-splitting mechanisms have been proposed relying on different topological states such as chiral edge states, valley-locked edge...
Superconducting Nanowire Single-Photon Detectors Excel in DCS Applications
BOSTON, Aug. 24, 2021 — Researchers from Massachusetts General Hospital and MIT Lincoln Laboratory have developed a superconducting nanowire single-photon detector (SNSPD)-based diffuse correlation spectroscopy (DCS) device. The instrument demonstrated a high...
Novel Metasurface Enables Unprecedented Laser Control
CAMBRIDGE, Mass., July 1, 2021 — Harvard researchers have introduced a single metasurface that can effectively tune the different properties of laser light, including wavelength, without additional optical components. The metasurface can split light into multiple beams and control...
Optical Device Tunes Light One Photon at a Time
STANFORD, Calif., April 26, 2021 — Stanford University researchers developed an optical device that enables the fine-tuning and changing of frequencies of individual photons in a stream of light, to virtually any mixture of colors. The new photonic architecture has potential...
Wireless RoboFly Spreads Its Wings and Flies Solo
Oct 26, 2018 — Slightly heavier than a toothpick and powered by a laser beam, an insect-sized flying robot could help survey crop growth and sniff out gas leaks. These miniaturized drones, which soar by fluttering tiny wings rather than by rotating propellers, use...
Silicon-Based Optical Filter Splits Light Across a Range of Wavelengths
CAMBRIDGE, Mass., Aug. 7, 2018 — Researchers have designed a new optical filter on a chip that can process optical signals from across a very wide spectrum of light at once. The broadband, low-loss, transmissive dichroic filter can simultaneously achieve single-cutoff operation,...
Solar Imaging Tool Enables Better Understanding of Sun’s Atmosphere
GREENBELT, Md., Oct. 24, 2016 — The ability to track a particular kind of solar wave as it sweeps upward from the sun's surface through its atmosphere is adding to astrophysics’ understanding of how solar material travels throughout the sun. Though scientists have long...
Ultrahigh-Resolution Microscope Images Whole Cells in 3D
WEST LAFAYETTE, Ind., Sept. 12, 2016 — A novel super-resolution nanoscope allows 3D imaging of an entire mammalian cell and its cellular constituents at a resolution that is 20–50 times higher than conventional microscopy, with imaging depth improved ∼10-fold over...
Solid-State Photodetector May Speed Switching of Optoelectronic Devices
NAGAKUTE, Japan, Sept. 9, 2016 — An all-solid-state-wavelength-dependent bipolar photodetector (WBPD), composed of a single semiconductor, has demonstrated a faster response time than existing WBPDs that are comprised of hetero-nanostructures. The novel WBPD has also demonstrated...
Life in the Ultrafast Lane with Fiber Lasers
Apr 25, 2016 — For lasers, shorter pulses mean more precision and new applications. That’s been true for decades. What’s changed in the last few years is that prices for lasers with pulse widths a picosecond or less are dropping significantly. The...
Natural Optical Fibers Sort Colors in Retina
HAIFA, Israel, July 22, 2014 — The retina has long been known to convert light into electrical signals and initially process visual information, but that’s not all. Researchers from Technion Israel Institute of Technology have demonstrated the role that glial cells inside...
Tiny Crystals Could Oust Traditional Solar Absorbers
NANTES, France, April 4, 2014 — Traditional absorbers in thin film-based solar cells may have some competition in a new technique that incorporates nontoxic and relatively common elements. The new approach, developed by a team from the University of Nantes, uses sulfide materials...
Europium Complexes Emit Red Light with Record Efficiency
WARSAW, Poland, and ST. ANDREWS, Scotland, April 4, 2014 — New material developed in Poland has enabled Scottish researchers to produce a highly efficient, nearly monochromatic red OLED.
Guide Star Set for VLT
MUNICH, April 1, 2014 — A new solid-state laser aims to give giant Earth-bound telescopes better vision by reducing atmospheric distortion.
Combining Technologies Creates Ultrathin Light Detectors
VIENNA, March 28, 2014 — A first-ever combination of technologies has resulted in the creation of an extremely thin light detector.
System Pushes Better Light Control
CAMBRIDGE, Mass., March 27, 2014 — More precise control of light could be on the horizon, prompting advances in solar photovoltaics, detectors for telescopes and microscopes, and privacy filters for display screens.
Switching an Antibiotic On and Off with Light
KARLSRUHE, Germany, and KIEV, Ukraine, March 25, 2014 — Soon antibiotics may be switched on and off as readily as a lightbulb, treating localized infections and even cancer in the process. A team from the Karlsruhe Institute of Technology and the University of Kiev incorporated a photoswitchable molecule...
Diffractive Catheter Enhances OCT Imaging
BALTIMORE and SEATTLE, March 12, 2014 — A new imaging catheter that enables real-time, ultrahigh-resolution OCT imaging at 800 nm to form a 3-D volumetric dataset could potentially improve image contrast via increased light scattering and less tissue absorption.
New Approaches Improve Beam Expansion
Mar 7, 2014 — Afocal beam expansion systems based on the basic principles of Kepler and Galileo telescopes can be improved in terms of wavefront quality by using additional optical surfaces or aspherizing them using monolithic beam expansion elements. Everyday...
Quantum Droplets Form in Laser-Shot Semiconductors
BOULDER, Colo., March 3, 2014 — The accidental discovery of a new quasiparticle that behaves like a drop of liquid could provide a better understanding of solid-state devices such as semiconductors and superconductors.
QD Lasers Grown on Silicon Show Record Performance
SANTA BARBARA, Calif., and BETHLEHEM, Pa., Feb. 25, 2014 — A new study shows that direct growth of III-V lasers on silicon (Si) with quantum dot (QD) active regions is a competitive alternative to wafer bonding lasers grown on native substrates. The 1.3-µm wavelength indium arsenide (InAs) QD lasers...
Fast Phase Modulator Is World's Most Compact
KARLSRUHE, Germany, Feb. 24, 2014 — Using electro-optical signals rather than traditional electrical signals could make the exchange of digital information more efficient.
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April 2024
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