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Microscopy News
A New Approach to Adaptive Optics for Materials Processing
Nov 1, 2007 — When it comes to shaping the intensity patterns or wavefronts of light, fixed lenses are convenient, but often the need for frequent reshaping requires adaptive optical elements. There are a number of such active technologies, each with advantages and shortcomings. To overcome limitations such as speed and energy throughput for materials processing applications, we developed an adaptive optical element that we call a tunable acoustic gradient index of refraction lens, or TAG lens. The...
Flexible and Freestanding Photonic Crystals
Nov 1, 2007 — Researchers from Università Politecnica delle Marche in Ancona, Italy, have created photonic structures in freestanding polymer films. The process of fabricating the films is relatively simple, and the resulting micron-resolution structures are...
Joining Optical Components with Silica Nanoparticles
Nov 1, 2007 — Assembling optical components requires some type of bonding mechanism, often using epoxies, glass frits or other materials to join two or more pieces. No matter what type of bonding material or process is used, however, there often are limitations...
OPTICAL FILTERS
Nov 1, 2007 — Omega Optical has released its 2007 catalog “Precision Optical Filters for Fluorescence Microscopy,” which includes 15 new filter sets for fluorescent proteins and 10 new sets for Förster resonance energy transfer applications. The publication...
OPTICS CATALOG
Nov 1, 2007 — The “Optics and Optical Instruments Catalog, Fall 2007,” from Edmund Optics Inc. highlights the company’s edge-blackened optics, which are designed to eliminate scattered light from optical systems. The color-coded 361-page publication features new...
Organic Thin-Film Solar Cell Research Conducted at Stanford University
Nov 1, 2007 — Global energy consumption is inexorably increasing, driven by population growth and the wave of industrialization in developing countries. Today the world uses about 13 TW of power. Projections are that about 30 TW will be needed by 2050. The sun...
Phone Enables Instant Image Capture
Nov 1, 2007 — Some mobile phone camera users want a device with true point-and-shoot ability — a camera that captures high-quality images over a wide variety of object distances with no time delay. Whether shooting panoramas, portraits or close-ups, or even...
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...
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...
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July 2024
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