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chiral News
Fabrication Method Enables Novel Metamaterial Properties
PHILADELPHIA, Nov. 24, 2023 — In recent decades, researchers have fabricated metamaterials that interact with light in ways that go beyond the physical limits imposed on naturally occurring materials. A metamaterial is composed of arrays of “meta-atoms,” which have been fabricated into desirable structures on the scale of about 100 nm. The structure of arrays of meta-atoms facilitates precise light-matter interactions. However, the large size of meta-atoms relative to ordinary atoms, which are smaller than
Quantum Light Source Emits Circularly Polarized Single Photons
LOS ALAMOS, N.M., Aug. 29, 2023 — An approach to quantum light emitters developed at Los Alamos National Laboratory stacks two different atomically thin materials to realize a source that generates a stream of circularly polarized single photons that can be used for a variety of...
Chirality and Nanotechnology Speed Up Light-Based Drug Screening
ANN ARBOR, Mich., March 2, 2021 — A team of international collaborators has introduced a drug-screening technique that relies on nanostructure chirality as its fundamental property. (Chirality is a quality that, for a physical object, means it cannot be superimposed on its mirror...
Chiral Metamaterial Causes Optical Shift in mW Range
ATLANTA, March 9, 2017 — A metamaterial with chiroptical properties in the nonlinear regime has shown the ability to produce a significant spectral shift with power levels in the milliwatt (mW) range. Two absorptive resonances were spectrally modified through incremental...
Ultrathin Metalens Captures Chiral, Spectral Images Simultaneously
CAMBRIDGE, Mass., July 4, 2016 — An ultracompact planar lens has been engineered to simultaneously form two images of the same object, with opposite helicity and within a single field-of-view. The chiral and spectral properties of the object can be simultaneously probed across the...
Metamaterial Detects Circularly Polarized Light
NASHVILLE, Tenn., Oct. 27, 2015 — A metamaterial detector for circularly polarized light may open the door for development of small, portable sensors for applications from drug screening to communications and beyond. "Although it is largely invisible to human vision, the...
Queen’s University Selects Linkam Stages
TADWORTH, England, Aug. 20, 2010 — For 10 years, Linkam Scientific Instruments has been used as temperature stage suppliers to Queen’s University in Canada to study the properties of ferroelectric liquid crystals. The research program, led by Professor Robert Lemieux and his...
Dreadlocks with Kung Fu Grip
CAMBRIDGE, Mass., Jan. 9, 2009 -- Researchers have found that dunking synthetic, nanosize hairs into a liquid and allowing the liquid to evaporate can coax the nanobristles to twist together like dreadlocks, sticking to each other or to an object in their center with a tenacious...
A New Twist on Fiber Optics
Jul 1, 2004 — ARLINGTON, Va., July 1 -- By twisting fiber optic strands into helical shapes, researchers have created unique structures that can precisely filter, polarize or scatter light. Compatible with standard fiber optic lines, these hair-like structures...
(9 results found)
April 2024
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