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Microscopy News
Laser Tweezers Transport Cell-Size Liposomes
Apr 1, 2002 — Researchers at Kyoto University in Japan have demonstrated a method to trap and transport cell-size liposomes with laser tweezers. Liposomes can carry chemicals such as enzymes, DNA or RNA and remain stable for weeks. The work may pave the way for the development of microlaboratories for biochemistry and molecular biology. Experiments at Kyoto University showed that cell-size liposomes can be trapped and transported without damage if the inner solution has a higher refractivity than the...
Lasers Lighten the Laboratory Load
Apr 1, 2002 — Laser manufacturers take note: A nonscientific survey indicates that scientists want a highly tunable turnkey laser with configurable pulse widths and repetition rates. It should be easily mode-locked, have good shot-to-shot and long-term stability,...
Near-Field Microscopy Maps Nanoscale Material Compositions
Apr 1, 2002 — Far-field microscopy techniques typically cannot map different types of materials on multicomponent nanostructures because the associated wavelength limit causes blurring of the image. Researchers at the Max Planck Institut für Biochemie in...
Rotators Stop the Feedback
Apr 1, 2002 — High-power laser beams present unique challenges to laser designers. When Positive Light Inc. agreed to build a glass-amplified laser for the Japan Atomic Energy Research Institute, it combined rotators and isolators from Electro-Optics Technology...
Bright White Organic LED Developed
Mar 1, 2002 — Using precisely calibrated thicknesses of bright blue, red and green light-emit-ting layers, researchers at Academia Sinica's Institute of Chemistry in Taipei, Taiwan, have developed a bright white organic LED that produces an intensity of 24,700...
Excimers Smooth the Path to Well-Lubricated Bearings
Mar 1, 2002 — Applications in the defense and aerospace industries have increased demands for spherical plain bearings that require less maintenance and that yield higher performance and longer life. These demands, in turn, have initiated the development of laser...
High-Speed FO Network Connector Benefits Researchers
Mar 1, 2002 — StarLight is a high-speed optical fiber network connection point that links international research computers to enhance collaboration within the academic and commercial communities. The Chicago-based facility at Northwestern University should...
Hybrid Microscopy Images Calcium
Mar 1, 2002 — By combining two-photon-excitation and third-harmonic-generation microscopy, researchers at Centre National de la Recherche Scientifique in Talence and Bordeaux, France, have produced images that correlate cell processes with cell...
Near-Field Microscopy Catches Smallest Laser in Action
Mar 1, 2002 — Using a near-field scanning optical microscope, researchers at the University of California in Berkeley have captured images of tiny nanowire lasers in action. Led by Richard Saykally, they have applied a combination of femtosecond spectroscopy and...
Specifying Injection-Molded Plastic Optics
Mar 1, 2002 — The use of plastic optics continues to grow in popularity as optical design engineers discover the many ways these components can manage light. Plastic optical elements and systems appear in a wide spectrum of industrial and medical applications,...
Light Management to Supply UV Scanner to Baylor College of Medicine
Feb 25, 2002 — NORCROSS, Ga., Feb. 25 -- Light Management Group Inc., developer of optical and light technologies employing sound waves, has signed an agreement to supply The Baylor College of Medicine (Houston, Texas) with an ultraviolet (UV) scanner and an...
Rheologics Acquires Cytometrics
Feb 8, 2002 — EXTON, Pa., Feb. 8 -- Rheologics Inc.announced it has completed the acquisition of Delaware-based Cytometrics Inc., a medical device company. Cytometrics' core device, the CYTOSCAN, is a patented video microscope/soft-tissue probe that captures...
'Bar Code' Tags Aid Bioanalysis
Feb 1, 2002 — Biochemical reactions involve hundreds, sometimes thousands, of unique molecules. Fluorescent markers can be targeted toward specific molecules, but only a handful of spectrally distinct markers can feasibly be identified simultaneously in solution....
Cameras Are Focusing on All Microscopy Applications
Feb 1, 2002 — There is more going on in microscope cameras than meets the eye. Digital interfaces, as much as the demands of the applications, promise to deliver higher camera resolution and user-friendly operation. New CCD sensors under development should yield...
Laser Controls Surface Reactions
Feb 1, 2002 — The ability to manage the location and timing of chemical reactions is key to advanced industrial and biochemical processes. A new laser technique promises unprecedented control over surface reactions. Although it is relatively easy to create the...
Photonic Gauge Has 0.03 °C Resolution
Feb 1, 2002 — Researchers have developed a way to take the temperature of a fluid on a tiny scale and with a light touch. The technique could have applications in microfluidic systems, the labs-on-a-chip that promise to revolutionize analytical chemistry and...
Adaptive Pulse Shaping Provides Photoselective Molecular Excitation
Jan 1, 2002 — Researchers from the Universität Würzburg in Germany have discovered that selective excitation of individual molecule types in a heterogeneous solution, while not attainable through manipulation of single parameters such as wavelength or linear...
Diversity Powers Laser Market
Jan 1, 2002 — In the past few years, telecommunications has received enormous attention in the laser industry and in the photonics press. While telecom applications continue to offer tremendous long-term potential for laser manufacturers, market diversity remains...
Laser Technique Monitors Calcium
Jan 1, 2002 — Changes in cellular calcium concentration affect physiological activities such as muscular contraction and neural transmission, but researchers have been unable to resolve the mechanisms of transmission using chemical, electrical and mechanical...
Laurin Publishing 2001 Photonics Awards
Jan 1, 2002 — The Distinction in Photonics Award honors those individuals whose dedicated service over the years has contributed to the growth and prosperity of the photonics industry. The publishers and editors at Laurin Publishing are pleased to present the...
Near-Field Microscopy Probes Quantum Dots
Jan 1, 2002 — Near-field optical microscopy is enabling researchers at the University of Michigan in Ann Arbor and at the Naval Research Laboratory in Washington to investigate the fundamental physical characteristics of quantum dots. The work will lead to a...
Optical Tomography Moves to Developmental Biology
Jan 1, 2002 — Faculty and students at Harvey Mudd College in Claremont, Calif., are using optical coherence tomography technology to capture three-dimensional movies of developing cell systems. Conventional methodologies typically employ a scanning electron...
Photon Sieve Focuses Soft X-Rays
Jan 1, 2002 — Researchers at Universität Kiel and Universität Hamburg, both in Germany, have achieved a sharper focus of soft x-rays from high-power, free-electron sources than from conventional zone-plate optics. The "photon sieve" method uses pinholes that vary...
Pulse Tracked Through Waveguide
Jan 1, 2002 — Conventionally, researchers study pulse propagation by coupling pulses into a medium and deducing what goes on inside from the radiation that is transmitted or reflected. Now a team from the University of Twente in Enchede, the Netherlands, has...
Violet LED Points the Way to VCSELs
Jan 1, 2002 — The III-nitrides have demonstrated their potential as solid-state sources of violet and near-UV light, but to fully realize their benefits for applications in printing, data storage and communications, it will be necessary to adapt them to...
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July 2024
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