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birefringence News
Birefringent Metasurface Aims to Transform Waveplate Tech
LIVERMORE, Calif., Oct. 17, 2023 — Lawrence Livermore National Laboratory (LLNL) researchers have adapted their novel metasurface process, which creates a thin layer on the surface of an optic, to create an all-glass metasurface with birefringence, or dual refraction, properties....
Polarization-Maintaining Fiber Enables Near-Chirp-Free Pulses
XI’AN, China, Feb. 11, 2022 — A team at Northwestern Polytechnical University (China) has demonstrated near-chirp-free solitons in normal-dispersion, hybrid-structure fiber lasers that contain a few meters of polarization-maintaining fiber. The solitons typically have a...
Daily-Use Light Source Converts IR to Blue Light for Sterilization, Disinfection
OSAKA, Japan, June 25, 2021 — A microcavity device that converts infrared (IR) radiation into blue light could enable safe, daily use of deep ultraviolet (DUV) light for disinfection and sterilization. The device was developed by a research group from Osaka University and was...
Optical Element Could Enable Pocket Telescope
OTTAWA, Ontario, June 10, 2021 — A novel optical element will one day enable composite lenses and telescopes in a form factor small enough to fit in a pocket. The device, developed by Orad Reshef and Jeff Lundeen of the University of Ottawa, is called a spaceplate. Its function,...
3D Visualization Method Reveals Molecular Position, Orientation, Oscillations
ROCHESTER, N.Y., Oct. 26, 2020 — Researchers at the University of Rochester and the Fresnel Institute in France developed a method for visualizing molecules’ position and orientation in 3D, as well as their oscillations. The technique could allow for greater insights into the...
Ancient Material Shows High Degree of Birefringence for Use in Displays
SUITA, Japan, April 22, 2019 — When researchers at Osaka University measured the optical birefringence of highly aligned cellulose nanofibers, they found that cellulose’s intrinsic birefringence could be powerful enough to be used in optical displays. For its experiments,...
Insight into Glass Formation Could Lead to Coatings, Other Applications
PHILADELPHIA, Sept. 18, 2017 — To better understand the optical properties of stable glasses, and whether they are analogous to the properties of naturally aged glasses, researchers developed perfectly round molecules that retain their three-dimensional shapes and do not...
Diagnostic Method Employs Birefringence of Liquid Crystals
ZURICH, Dec. 14, 2015 — A detection system that uses birefringence as the sole optical output signal holds promise as a low-cost, rapid diagnostic tool for identifying biomarkers, viruses, bacteria and parasites in the field. Scientists from ETH Zurich (the Swiss Federal...
Choosing a Material for Use in the Infrared
Nov 1, 2010 — Creators of infrared systems often encounter difficulty when trying to select the proper materials for their optical designs. Part of the challenge is gathering information on the physical properties of IR materials. The other part is understanding...
Optical Homogeneity of KAP Crystal
Mar 31, 2010 — Another presentation made by participants at the recently held Annual Photonics Workshop (APW) 2010 in Cochin, India, was on optical homogeneity nonlinear refractive index of KAP, by the School of Physics, Bharatidasan University, Tiruchirapalli,...
A New World of Fiber Sensors
Oct 1, 2009 — Optical fiber is well-known for its ability to carry information at high speeds over long distances. Twenty years after the first transatlantic fiber optic cable was laid, these strands of ultrapure glass continue to offer unrivaled bandwidths. They...
Hinds Instruments Wins Circle of Excellence Award
Jan 1, 2004 — The development of lithography has been hindered by the lack of a deep-ultraviolet tool to measure birefringence in optical materials such as calcium fluoride. Visible measurement has encountered a high level of intrinisic birefringence in CaF2 at...
(12 results found)
April 2024
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