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Microscopy News
Ultrathin Silicon Filter Sorts Single Molecules
ROCHESTER, N.Y., Feb. 15, 2007 -- A recently developed porous silicon membrane that is thousands of times thinner than similar filters used today sorts objects as small as proteins and has potential applications ranging from fuel cells to stem cells to microchip manufacturing. The 50-atom-thick filter -- more than 4000 times thinner than a human hair -- was developed at the University of Rochester. It can withstand surprisingly high pressures and may be a key to better separation of blood proteins for dialysis patients,...
Asylum Appeals Veeco Patent Decision
Feb 13, 2007 — Asylum Research, a Santa Barbara, Calif., manufacturer of atomic force microscopes (AFMs), said it will appeal a decision rejecting its opposition of a Veeco Instruments Inc. European patent. The European Patent Office (EPO) in Munich, Germany, last...
Answer Found for Nanowire Conductance Variations
ATLANTA, Feb. 9, 2007 -- A physics group has discovered how and why the electrical conductance of metal nanowires changes as their length varies. Determining the structural properties of nanowires is a big challenge facing the future construction of nanodevices and...
Method Quickly Judges Nanotube Purity
GAITHERSBURG, Md., Feb. 2, 2007 -- A sensitive new method has been developed for quickly assessing the quality of carbon nanotubes. Initial tests show that the method is not only faster than the standard technique but also screens much smaller samples, better detects sample...
Designing Fiber for Better Lasers
Feb 1, 2007 — Fiber lasers are becoming increasingly popular alternatives for applications that require high power — hundreds of watts to kilowatts — such as materials processing, surgery and biochemistry. Their high efficiency, enviable beam quality, small...
Detecting Mercury with Gold
Feb 1, 2007 — As evidenced (albeit comically) by Lewis Carroll’s madcap hatter, mercury exposure can have serious health consequences, such as tremors, memory loss and personality changes. Free mercury can arise from volcanic emissions, the mining of precious...
Making a Different Point for Better Images
Feb 1, 2007 — Takashi Kodama and Hiroyuki Ohtani at Tokyo Institute of Technology made a point of improving microscopy imaging by developing a novel probe for apertureless near-field scanning optical microscopy. Standard tips used in the technique are made by...
MEMS Microlens Has Adjustable Focal Length
Feb 1, 2007 — MEMS photonic devices have proved useful in many applications, including telecom, displays and imaging. But developing an efficient and reliable microlens, one whose focal length can be easily adjusted, is a goal that has eluded engineers. Recently,...
Nanoantennae Show Promise for Subwavelength Optical Microscopy
Feb 1, 2007 — Researchers have fabricated optical nanoantennae on the end face of a near-field probe. Using single fluorescent molecules, they measured the antennae’s resonance, excitation conditions and field localization, showing that the constructs are similar...
Not Just Flaky Research
Feb 1, 2007 — The commonly held belief that no two snowflakes are alike may be true in the latter stages of the crystals’ development, but at their early stages, the hexagonal prisms are similar. Jon Nelson, a researcher at Sci-cubed, a not-for-profit research...
RPI Licenses Microscopy Technology to Thorlabs
Feb 1, 2007 — Rensselaer Polytechnic Institute of Troy, N.Y., has licensed its adaptive scanning optical microscope technology to Thorlabs Inc., a manufacturer of photonics products based in Newton, N.J. The company is positioned to bring the technology to...
Taking a Laser’s Temperature Remotely
Feb 1, 2007 — It is not just people who get hot and bothered; the same is true for high-power laser diodes, where the buildup of heat leads to thermally induced changes in the refractive index. Such changes can significantly alter the shape and position of the...
Transmitting Light Through a Coaxial Cable
Feb 1, 2007 — Taking a cue from radio and microwave transmission lines, researchers at Boston College in Chestnut Hill and at NanoLab Inc. in Newton, both in Massachusetts, as well as at the Center of Advanced European Studies and Research in Bonn, Germany, have...
Trends in Laser Damage
Feb 1, 2007 — The demand for high-energy laser systems has increased steadily in recent years, driven by applications in defense, semiconductor processing and basic research, among others. The systems range from those that are continuous wave (CW) to those with...
Zinc Phosphide Nanowires for Photon Detection
Feb 1, 2007 — Although not dirt, zinc phosphide is cheap and abundant. Carefully synthesized structures of the material also have good optical efficiency and resist the buildup of an oxide layer on their surface. Together, these properties give the substance...
Exhibitors Positive About Photonics West 2007
SAN JOSE, Calif., Jan. 26, 2007 -- Organizer SPIE, the International Society for Optical Engineering, estimated Thursday that more than 17,000 people attended Photonics West 2007's technical programs and exhibition between Jan. 20-25. In an informal survey during the event,...
Vendors Positive About Exhibition
SAN JOSE, Calif., Jan. 26, 2007 -- Organizer SPIE, the International Society for Optical Engineering, estimated Thursday that more than 17,000 people attended Photonics West 2007's technical programs and exhibition between Jan. 20-25. In an informal survey during the event,...
Unusually White Beetle Gives Scientists Bright Ideas
EXETER, England, Jan. 25, 2007 -- An obscure species of beetle could teach scientists how to produce brilliant white ultrathin materials and more efficient white light sources, according to a research team studying the insect.Scientists are expecting the beetle's whiteness to be...
Imaging Focus of BiOS at Photonics West
SAN JOSE, Calif., Jan. 23, 2007 -- Photonics West 2007 opened Saturday amid a number of photonics-related advances, both commercially and in development, that are creating a great deal of excitement. BiOS 2007, the International Biomedical Optics Symposium, kicked off Photonics West...
Imaging Focus of BiOS at Photonics West
SAN JOSE, Calif., Jan. 23, 2007 -- Photonics West 2007 opened Saturday amid a number of photonics-related advances, both commercially and in development, that are creating a great deal of excitement. BiOS 2007, the International Biomedical Optics Symposium, kicked off Photonics West...
Nanocomposite Yields Strong and Stretchy Fibers
CAMBRIDGE, Mass., Jan. 19, 2007 -- Creating artificial substances that are both stretchy and strong has long been an elusive engineering goal. Inspired by spider silk, researchers have now devised a way to produce a material that begins to mimic this combination of strength and...
Nanosensor Promising for Space Research
DELFT, Netherlands, Jan. 19, 2007 -- By detecting the terahertz frequencies contained in cosmic radiation, a tiny but supersensitive sensor may help solve the mysteries of outer space, its creator said. Cosmic radiation offers astronomers important new information about the birth...
College of Microscopy Now Open
Jan 18, 2007 — The McCrone Group Inc., a scientific research company, announced the opening of the new College of Microscopy at its learning center in Westmont, Ill. The center now hosts the largest array of advanced modern microscopy courses and instrumentation...
FEI Systems Selected for UCLA's California NanoSystems Institute
Jan 9, 2007 — The California NanoSystems Institute (CNSI) at the University of California, Los Angeles, has selected FEI Co. of Hillsboro, Ore., to supply three advanced transmission electron microscopes (TEM) for the institute's Electron Imaging Center for...
Strength of Nanotubes and Nanowires Combined in Hybrid
TROY, N.Y., Jan. 9, 2007 -- Hybrid structures have been created that combine the best properties of carbon nanotubes and metal nanowires and could help overcome some of the hurdles to using nanotubes in computer chips, displays, sensors and other electronic devices. The...
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July 2024
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