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adaptive optics News
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The Fight for First Light: Extremely Large Telescopes
Jul 31, 2020 — The 2020 U.S. Decadal Survey on Astronomy and Astrophysics, a type of survey in which astronomers set priorities to guide federal budgets during the next 10 years, is in the process of listing its most important projects. Asteroid detection and Mars exploration are high on the list, as is continued support of a new cadre of extremely large telescopes already under construction around the world, with effective mirror apertures measuring 20, 30, or 40 m in diameter. Astronomers hope these giant...
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Bringing Habitable Planets to Light with Faster Adaptive Optics
Jul 28, 2020 — At the heart of every imaging system, from endoscopes to extremely large telescopes, is the pursuit of a perfect image, extracting as much information as possible from every acquired photon. No matter how well designed the system, however,...
High-Speed Microscopy Tracks Millisecond Voltage Changes in Neurons of Awake Mice
BERKELEY, Calif., March 23, 2020 — University of California, Berkeley, researchers have built a microscope that can image the brain of an alert mouse 1000 times a second and record the passage of millisecond electrical pulses through neurons. The new imaging technique combines...
Optics, Chemistry, Materials Sciences Use Light to Manipulate Light
PITTSBURGH, Feb. 26, 2020 — Researchers from the University of Pittsburgh’s Swanson School of Engineering, Harvard University, and McMaster University have revealed a hydrogel that can respond to optical stimuli and modify the stimuli in response. A convergence of...
Light-Responsive Material Could Provide Basis for All-Optical Computing
HAMILTON, Ontario, Feb. 6, 2020 — A platform that could potentially be used for all-optical computing has been developed through a collaboration between researchers at McMaster University and the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS). The...
First Images from Inouye Solar Telescope Provide Detailed Look at Sun
KULA, Hawaii, Jan. 31, 2020 — The first images from the National Science Foundation’s (NSF) Inouye Solar Telescope show a close-up view of the sun’s surface, detailing a pattern of turbulent “boiling” plasma that covers the entire sun. The cell-like...
New Imaging Technique Could Help Diagnose, Monitor Retinal Disease
BETHESDA, Md., March 29, 2019 — Researchers at the U.S. National Eye Institute (NEI) believe their adaptive optics indocyanine green (AO-ICG) imaging technique could be used to help diagnose and monitor the progression of eye diseases, and to preclinically detect cellular-level...
Leibniz Institute Observes Neuronal Structures with Holography
JENA, Germany, Nov. 29, 2018 — Using a multimode optical fiber as thin as a human hair, scientists at the Leibniz-Institute of Photonic Technology have observed at high resolution the neuronal structures inside deep brain areas of living mice. The researchers drew on holographic...
Hand-Held Imager Could Broaden Use of AOSLO
DURHAM, N.C., Aug. 27, 2018 — Researchers at Duke University have miniaturized adaptive optics (AO) technology to develop a portable hand-held ophthalmology device that can image individual photoreceptors in the eye at high resolution. The new instrument could allow improved...
Nanoscope’s 3D Superresolution Reveals Alzheimer’s Source
WEST LAFAYETTE, Ind., July 17, 2018 — A superresolution nanoscope could enable 3D imaging of amyloid plaques — a characteristic feature of Alzheimer’s disease — with up to 10 times greater detail than conventional microscopes. Researchers at Purdue University combined active shaping of...
Optics Tools Advance in New Forms with Space Exploration
Jul 12, 2018 — With a new generation of large telescopes comes new challenges for optics. Some mirrors, for instance, must be large but flexible to perform wavefront correction and make the images as clear as possible. The shape of future optics will be different...
AO-LLSM Microscope Achieves Aberration-Free Imaging
ASHBURN, Va., April 23, 2018 — Scientists have combined lattice light-sheet microscopy (LLSM) with adaptive optics (AO) to capture high-resolution 3D movies of cells deep within living systems. The AO-LLSM microscope enables cells to be viewed in their native multicellular...
Adaptive Optics Look Farther Than Ever Before
Mar 28, 2018 — Decades after the Cold War ended, technology developed for the U.S. Strategic Defense Initiative (“Star Wars”) missile defense program continues to be of use, emerging in fields ranging from space communication and exploration to brain...
Tunable Metalens Can Change Its Focus in Real Time, Like a Human Eye
CAMBRIDGE, Mass., Feb. 26, 2018 — Researchers have demonstrated electrically tunable large-area metalenses controlled by artificial muscle technology. The adaptive metalens simultaneously controls for three of the major contributors to blurry images: focus, astigmatism and image...
Keck Observatory to Update Adaptive Optics on Keck II Telescope
MAUNAKEA, Hawaii, Jan. 10, 2018 — The National Science Foundation (NSF) has awarded funding to the W. M. Keck Observatory on Maunakea, Hawaii for a significant enhancement of the performance of the adaptive optics (AO) system on the Keck II telescope. "The Keck telescopes were the...
Optical Diffusers Improve Definition, Viewing Angle for 3D Holograms
DAEJEON, South Korea, Feb. 17, 2017 — A wavefront shaping technique has been used to create a dynamic 3D holographic image with a viewing angle of 35 degrees in a volume of 2 cm in length, width and height. Use of the technique was shown to yield a 3D holographic display that performed...
GSU, Alpao to Upgrade CHARA Array
MOUNT WILSON, Calif., Oct. 27, 2016 — Georgia State University's Center for High Angular Resolution Astronomy (CHARA) and optics developer Alpao SAS have signed a contract for the development of an adaptive optics upgrade for the CHARA array, the largest optical interferometer array in...
A High-Resolution View of the Universe
Oct 3, 2016 — Under ideal circumstances, the resolution of an optical system is limited by the diffraction of light waves. This diffraction limit, the maximum resolution a telescope can achieve, improves linearly with the telescope’s aperture. However, the...
Handheld System Enables Effective Imaging of Children’s Retinas
DURHAM, N.C., Aug. 5, 2016 — A handheld device capable of capturing images of a retina with cellular resolution allows researchers to gather detailed structural information about the eyes of infants and toddlers for the first time.
Toptica Lasers Operating in ESO's Very Large Telescope
MUNICH, May 5, 2016 — Using four independent lasers from Toptica Photonics AG, the Four-Laser Guide Star Facility housed at the Paranal Observatory in Chile is now fully operational. This phase is a major step toward the completion of the Adaptive Optics Facility (AOF)....
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Delivering Optical Devices to the Medical Market
Mar 1, 2016 — Medical optics is big business. The global market for medical device technologies is expected to reach $538.7 billion in 2018, registering a compound annual growth rate (CAGR) of 5.5 percent over five years, according to market analysts at BCC...
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Plasmons Enhance Detection of Wavefront Aberrations
DUBLIN, Dec. 8, 2015 — A sensor that exploits plasmonics to gauge nanoscale distortions in lightwaves could yield more powerful tools for metrology and chemical sensing, as well as sharper microscopes.
Space Institute Funds Adjustable-Rx Eyeglasses, Light-Therapy Sleep Mask
HOUSTON, Nov. 11, 2015 — The National Space Biomedical Research Institute has awarded matching-grant funding to two small medical technology companies developing light-based products for astronauts that also hold promise for consumer applications. LumosTech Inc., a Stanford...
Optic Cancels Starlight to Search for Exoplanets
MONTREAL, June 23, 2015 — A new type of adaptive optic blocks glare from distant suns to give astronomers a glimpse of the dimmer bodies that orbit them closely. The vector apodizing phase plate (vector-APP) coronagraph was installed at the 6.5-m Magellan Clay telescope in...
Laser Guide Star System Installed at Very Large Telescope in Chile
MUNICH, May 22, 2015 — The first of four laser guide star systems developed by Toptica Photonics AG of Germany and MPB Communications Inc. of Canada has been installed and brought online at the European Southern Observatory's Very Large Telescope in Chile. Previous...
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May 2024
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