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Microscopy News
Portable Ozone Detection Without the Heat
Nov 1, 2007 — Too much ozone can cause breathing problems, especially among asthma sufferers, because it irritates the lungs. Concerns over ground-level emission of ozone, by common devices such as early-model photocopiers and laser printers, have driven the development of sensors for the gas. Metal-oxide thin films exist that could serve as ozone sensors, but they rely on thermal activation to cause reactions between their surfaces and atmospheric ozone. Unfortunately, generating enough heat requires high...
Quantum Dots as Tiny Thermometers
Nov 1, 2007 — As technology gets smaller and smaller, it is becoming increasingly difficult to take accurate temperature readings in systems that are measured in the micro- and nanometer ranges. Researchers from the University of California, Berkeley, and from...
Rapidly Counting Graphene Layers, One by One
Nov 1, 2007 — Carbon someday could rival silicon in forming the basis for miniature electronics. Two-dimensional sheets of carbon called graphene are promising candidates because they are stable and they move electrons rapidly. Furthermore, graphene-based devices...
Suspended in Film and Placed Over Microcavities, Quantum Dots Become Brighter
Nov 1, 2007 — According to a group of researchers comprising members from Georgia Institute of Technology in Atlanta, from Iowa State University in Ames and from Agiltron Inc. of Woburn, Mass., suspended quantum dots are brighter because they are removed from the...
Team Develops Electron Microscope with 0.5-Å Resolution
Nov 1, 2007 — Although studying how atoms come together to form matter is a central goal of science, it is difficult to study the particles because they measure only about 1 Å. For reference, 500,000 to one million angstroms comprise the width of an average...
TEM CCD CAMERA
Nov 1, 2007 — A four-page brochure on the Veleta 2k × 2k-megapixel side-mounted transmission electron microscope CCD camera has been released by Olympus Soft Imaging Solutions GmbH. Downloadable from the company Web site, the document notes that the Soft Imaging...
Thorlabs and Boston Micromachines Partner
Nov 1, 2007 — Thorlabs Inc. of Newton, N.J., and Boston Micromachines Corp. of Watertown, Mass., have formed a partnership that will enable the latter company, a supplier of microelectromechanical systems-based mirror products, to bring its deformable mirrors...
Beam of Light Picks Up Cells
CAMBRIDGE, Mass., Oct. 31, 2007 -- A beam of light has been used for the first time to pick up, hold, and move around individual cells and other objects on the surface of a silicon microchip. The new technology could become an important tool for both biological and materials...
QC Nanoantenna Demo'd
CAMBRIDGE, Mass., Oct. 22, 2007 -- The demonstration of a quantum cascade (QC) laser nanoantenna, a device capable of resolving the chemical composition of samples such as the interior of a cell with unprecedented detail, is being described as a major feat of nanotechnology by the...
Nano Conference Debuts
ORLANDO, Fla., Oct. 17, 2007 -- The International Congress on Applications of Lasers and Electro-Optics (ICALEO) will feature its inaugural conference on the emerging field of nanomanufacturing as one of its three major technical conferences this year. ICALEO 2007 will be held...
Nano Conference Debuts
ORLANDO, Fla., Oct. 17, 2007 -- The International Congress on Applications of Lasers and Electro-Optics (ICALEO) will feature its inaugural conference on the emerging field of nanomanufacturing as one of its three major technical conferences this year. ICALEO 2007 will be held...
Light Bent the 'Wrong' Way
PRINCETON, N.J., Oct. 15, 2007 -- A new, easy-to-produce material created from semiconductors refracts light negatively, bending the waves in the opposite direction from that taken by all materials found in nature. This unique ability may contribute to significant advances in areas...
Nanodevice Emits Light
ITHACA, N.Y., Oct. 12, 2007 -- Nanotechnologists have discovered some of the fundamental physics of a material that holds promise for producing light-emitting, flexible semiconductors. The discovery by an interdisciplinary team of Cornell nanotechnology researchers involved...
Unruly Light Waves Tamed
ATLANTA, Oct. 9, 2007 -- Light waves become unstable and unruly as they are pressed through surfaces only a few nanometers apart and smaller than their wavelength, because there just isn't enough room for them to travel in a straight line. This makes the creation of...
Microsystem Incubates Cells
BALTIMORE, Oct. 3, 2007 -- By integrating silicon microchip technology with a network of tiny fluid channels, some thinner than a human hair, engineers have developed a thumb-sized microincubator to culture living cells for lab tests. Researchers at The Johns Hopkins...
Building a Nanostructure Array One Slice at a Time
Oct 1, 2007 — Researchers at Harvard University in Cambridge, Mass., have employed a nanoscale version of skiving — cutting a material into thin layers — to create large-area arrays of patterned metallic structures. By producing frequency-selective surfaces, the...
Catalysts Stamp Nanopatterns
DURHAM, N.C., Oct. 1, 2007 -- A hundred-fold improvement in the precision of features imprinted to create microdevices such as labs-on-a-chip has been introduced using enzymes from E. coli bacteria. The inkless microcontact printing technique can imprint details measuring...
Deadline to Apply for Laser Innovations Prize is Nov. 30
Oct 1, 2007 — Applications and proposals are being accepted for the international 2008 Berthold Leibinger Innovationspreis ("innovation prize") for outstanding research and development in applied laser technology. The private foundation Berthold Leibinger...
Defining the Relationship Between Nanotube Length
and Optical Response
Oct 1, 2007 — Single-walled carbon nanotubes have numerous optical properties of interest to physicists and electronics engineers. However, whereas these nanometer-scale constructs have been well-studied regarding the influence of diameter and chirality on their...
Low-Temperature Flexible Sensors Use Ink-Jet Patterning
Oct 1, 2007 — Flexible electronics are used in supermarket labeling and in identification tags and could be used in large sensors for scanning cargo or packaging. As flexible electronics find their way into new applications, manufacturers are faced with problems...
Microscopy Used to Profile Refractive Index
Oct 1, 2007 — A microscopy technique that measures the refractive index profile of an optical waveguide has been devised by researchers in Taiwan. An accurate profile is used, in turn, to determine the mode properties of the waveguide, which are important in...
Omniprobe Buys Ascend
Oct 1, 2007 — Omniprobe Inc. of Dallas, a supplier of nanoscale failure analysis and process control solutions for nano-scale analysis, has acquired the assets of Ascend Instruments LLC of Beaverton, Ore., a provider of hardware and software for sample...
Photonics with a French Twist
Oct 1, 2007 — An official competitiveness cluster since 2005, the Route des Lasers (or Laser Highway) operates similarly to a trade association. Located in the Aquitaine region of France, stretching from the city of Bordeaux to the Arcachon basin on the Atlantic...
Physik Instrumente Awards a $25,000 NanoInnovation Grant
Oct 1, 2007 — Auburn, Mass.-based PI (Physik Instrumente) has awarded a $25,000 NanoInnovation Grant to Andrea Lelli, Eric A. Stauffer and Jeffrey R. Holt of the University of Virginia Medical School in Charlottesville for their submission “A Fast Mechanical...
Review Provides Blueprint for Optical Nanocircuits
Oct 1, 2007 — Increasing the clock speed of an electronic device can affect its interaction with light and other electromagnetic waves that pass through it. Controlling light in this way may enable the creation of superior optical microscopes that can reveal the...
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June 2024
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