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Harvard University News
Optically Addressed Spintronics Eliminates Need for Magnetic Fields
CAMBRIDGE, Mass., July 5, 2023 — Electron spins could become more efficient and easier to manage through a light-based approach using halide perovskite semiconductors. Research teams at Harvard’s Rowland Institute and the University of Cambridge observed ultrafast spin-domain formation in polycrystalline halide perovskite thin films in response to irradiating the films with circularly polarized light at room temperature. Photoinduced spin-charge interconversion in semiconductors, with spin-orbit coupling, could
Optical Isolator Guards Against Unwanted Reflections
CAMBRIDGE, Mass., June 30, 2023 — An optical isolator developed at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) could drastically improve optical systems for many practical applications. Many optical systems, such as those used for...
Device Employs Structural Color to Image Ambient Gases
TSUKUBA, Japan, Dec. 22, 2022 — Researchers from the National Institute for Materials Science (NIMS, Japan), Harvard University, and the University of Connecticut jointly designed and fabricated a simple device developed for imaging a gas injected into it — in multiple...
Metasurface Tech Enables Polarization Imaging on Almost Any Camera
CAMBRIDGE, Mass., April 4, 2022 — Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a metasurface attachment that can turn almost any camera or imaging system, even off-the-shelf systems, into polarization cameras. The...
Metalens Design Uses Millions of Holes to Focus Light into Single Point
CAMBRIDGE, Mass., Oct. 19, 2021 — Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) developed a metalens that uses deep narrow holes, rather than tall pillars, to focus light to a single point. The metasurface uses more than 12 million...
Metasurfaces Offer Full Control of Light Polarization
CAMBRIDGE, Mass., Aug. 26, 2021 — Researchers at the Harvard John A. Paulson School of Engineering and Applied Science have developed metasurfaces capable of manipulating the polarization of light with an unprecedented degree of control. “This research shows that the ability...
Startup Expects to Bring Metalens Technology to Commercial Market in 2022
CAMBRIDGE, Mass., Feb. 9, 2021 — Metalenz, the Harvard University-originating startup that last week received exclusive license to flat-optics innovations developed in the lab of Federico Capasso, said that the long-awaited metalens technology will likely see introduction into the...
Metalens Technology Startup Granted License for Flat Optics Innovations
CAMBRIDGE, Mass., Feb. 4, 2021 — Metalenz, a startup founded by applied physicists at the Harvard John A. Paulson School of Engineering and Applied Sciences, will be bringing metalens technology into commercial development. The startup made its plans public on Feb. 4 and announced...
Federico Capasso Awarded 2021 Frederic Ives Medal/Jarus W. Quinn Prize
WASHINGTON, D.C., Jan. 27, 2021 — OSA will present Federico Capasso with the 2021 Frederic Ives Medal/Jarus W. Quinn Prize, which recognizes overall distinction in optics. Capasso, the Robert L. Wallace Professor of Applied Physics and Vinton Hayes Senior Research Fellow in...
Robotically Controlled Laser May Improve Minimally Invasive Surgery
BOSTON, Jan. 14, 2021 — Robotic engineers at the Wyss Institute for Biologically Inspired Engineering at Harvard University have developed a microrobot designed to steer a laser within the body to aid in minimally invasive surgery. Current energy-delivering devices used...
Laser Method Makes Intense Mid-IR Pulsing More Practical
VIENNA, Nov. 24, 2020 — Research efforts from Vienna University of Technology, in collaboration with Harvard University, have led to the development of a laser method that increases the practicality and usability of mid-infrared pulsed lasing. Infrared lasers capable of...
Liquid Crystal Improves Metalens Design
CLEVELAND, Aug. 24, 2020 — An effort led by Federico Capasso of Harvard University and Giuseppe Strangi of Case Western Reserve University is using liquid crystals to improve the reconfigurability of metalenses. This advancement brings the viability of metalenses for...
Laser-Cooled YbOH Molecules Could Support New Discoveries in Physics
CAMBRIDGE, Mass., May 15, 2020 — Researchers at Harvard University and Arizona State University have demonstrated laser cooling of polyatomic YbOH molecules, in a first step toward using these molecules to make precision measurements of the electron’s electric dipole moment...
OSA Fellows Elected to American Academy of Arts & Sciences
WASHINGTON, D.C., May 1, 2020 — Two fellows of The Optical Society (OSA) have been elected to the American Academy of Arts and Sciences in recognition of their contributions to physics and engineering sciences and technologies. They are among 276 new members, including scientists,...
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...
Terahertz Laser Generated with Laughing Gas
CAMBRIDGE, Mass., Nov. 18, 2019 — Researchers from Massachusetts Institute of Technology (MIT), Harvard University, and the U.S. Army have built a compact device able to produce a terahertz laser that can be tuned over a wide range. The device was built with commercial off-the-shelf...
Nobel Prize Winner Glauber Dies at 93
NEWTON, Mass., Jan. 1, 2019 — Roy J. Glauber, Nobel laureate, passed away Dec. 26, 2018, at the age of 93. Glauber was awarded one-half of the 2005 Nobel Prize in Physics “for his contribution to the quantum theory of optical coherence.” Glauber’s prize-winning work centered on...
Optical Prism Designs Expands Vision Field for the Sight-Impaired
BOSTON, May 24, 2016 — A series of novel optical designs may address the limitations of current peripheral prism eyeglasses and help further expand the field of vision for patients with hemianopia, a condition in which the visual fields of both eyes are cut in half....
UV Catheter Plugs Holes in Hearts
BOSTON, Oct. 6, 2015 — With help from UV light, a catheter device could provide a way to repair defects in hearts and other organs without surgery. The device has already been used successfully in animal studies. It was developed jointly by researchers from Boston...
Microlens Array Spawns Massive Microscope Image
CAMBRIDGE, Mass., July 21, 2015 — A new multispectral device is said to have produced the largest microscope image ever, combining 13 color channels gathered by thousands of microlenses into a nearly 17-gigapixel picture. Able to rapidly process very large amounts of biomedical...
LSCM and RelA for Quantifying Microwear: A Case Study
Feb 13, 2015 — Laser scanning confocal microscopy and relative area are effective tools for surface-roughness analysis of experimental Mistassini quartzite scrapers. Laser scanning confocal microscopy (LSCM) and relative area (RelA) are effective tools for the...
Light Damps 2-D Semiconductor Conductivity
CAMBRIDGE, Mass., Nov. 7, 2014 — While light enhances the conductivity of most semiconductors, it has the opposite effect on 2-D molybdenum disulfide. A team from MIT and Harvard University discovered the phenomenon, in which intense laser pulses reduced by about two-thirds the...
Ultrathin Films Color Rough, Flexible Surfaces
CAMBRIDGE, Mass., Oct. 2, 2014 — Researchers can now “paint” rough, flexible surfaces through the phenomenon of thin-film interference. A team at Harvard University demonstrated that ultrathin optical coatings can display strong optical interference effects on notebook...
Photonics Researchers Win Blavatnik Awards
NEW YORK, July 29, 2014 — The Blavatnik Family Foundation and the New York Academy of Sciences has recognized two photonics researchers with the 2014 Blavatnik National Awards. The award honors young American scientists and engineers; each winner receives $250,000. The three...
4 Photonics Projects Get Defense Funding
WASHINGTON, June 3, 2014 — The U.S. Department of Defense has awarded funding totaling $28.3 million for four photonics graduate research projects under its Multidisciplinary University Research Initiative (MURI). Brief summaries of the projects follow. For further...
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April 2024
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