Special Coverage

Home

Laser Microscalpel



Posted in: Blog

Read More >>

NHK World Radio Japan - Vietnamese News

Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Sed in nisl non orci rutrum hendrerit. Nam faucibus leo sit amet tortor. Aliquam cursus tristique justo. Aenean porta metus et magna. Aliquam lectus mi, aliquet eget, congue id, interdum in, ante. Integer lectus. Ut pellentesque tellus sit amet mi. Nunc at est sed diam suscipit facilisis. Praesent ut sapien sit amet quam ullamcorper iaculis. Suspendisse dolor sapien, posuere id, commodo eu, egestas vitae, mauris. Integer vulputate pede eget pede. Suspendisse accumsan auctor felis. Aliquam erat volutpat. Suspendisse dolor mauris, tempus at, accumsan vitae, cursus vel, augue. Donec et neque. Phasellus vulputate placerat diam. Etiam tempor ante nec arcu. Donec sed metus a turpis hendrerit congue. Quisque interdum lacinia erat. Pellentesque est orci, egestas sit amet, volutpat in, facilisis id, pede. Nunc gravida viverra sem. Suspendisse facilisis turpis ac odio. Curabitur euismod adipiscing elit. Vivamus tincidunt. Vestibulum tempus tellus et nulla. Donec consequat felis eu augue. Mauris bibendum blandit metus. Maecenas a nibh nec arcu ultrices convallis. Praesent leo sapien, vehicula eget, porttitor eget, luctus a, nisi. Sed vel dui. Morbi blandit, nisi eu dapibus convallis, nunc nisl adipiscing sem, ac euismod lacus ipsum sit amet dui. Donec bibendum porta magna. Aenean blandit pharetra erat. Mauris fringilla elit eget augue. Praesent sit amet sapien. Maecenas tortor nibh, dignissim sit amet, bibendum eget, vehicula in, odio. Etiam ultricies felis id tellus.

Posted in: Who's Who

Read More >>

Biochips Containing Arrays of Carbon-Nanotube Electrodes

Small quantities of biomarkers could be detected rapidly, with simplified preparation. Biochips containing arrays of nanoelectrodes based on multiwalled carbon nanotubes (MWCNTs) are being developed as means of ultrasensitive electrochemical detection of specific deoxyribonucleic acid (DNA) and messenger ribonucleic acid (mRNA) biomarkers for purposes of medical diagnosis and bioenvironmental monitoring. In mass production, these biochips could be relatively inexpensive (hence, disposable). These biochips would be integrated with computer-controlled microfluidic and microelectronic devices in automated hand-held and bench-top instruments that could be used to perform rapid in vitro genetic analyses with simplified preparation of samples.

Posted in: Bio-Medical, Briefs, TSP

Read More >>

Creating Patterned Multispectral Filters

In recent years the explosion in demand for multispectral imaging has coupled with the industry’s insatiable need for weight reduction, there-by greatly increasing the demand for more sophisticated approaches to producing optical filters that are used in these systems. One method to meet the challenge of reducing the weight of a multispectral system is to eliminate beam-splitting optics and multiple detectors by patterning a filter array on a single substrate, or directly on the CCD itself.

Posted in: Articles, Features, ptb catchall, Photonics

Read More >>

Implementing Thermal Bumps in New Product Designs

Thermal issues are dominating today’s electronic product design landscape as never before. It is easy to see this in Intel’s move to a multi-core architecture as a methodology to manage their thermal problems. Of course, less than optimal solutions lead to less than optimal results. Thermoelectric devices (TECs) have been used in the optoelectronics industry for thermal management, but have not found wide-spread acceptance in electronic product design. Thermal management solutions implemented with these active devices, however, offer a broad potential for implementation including the following:

Posted in: Application Briefs, Applications, ptb catchall, Photonics

Read More >>

NbxTi1–xN Superconducting-Nanowire Single-Photon Detectors

Potential applications include optical communications and quantum cryptography. NASA’s Jet Propulsion Laboratory, Pasadena, California Superconducting-nanowire single-photon detectors (SNSPDs) in which NbxTi1–xN (where xerve as the superconducting materials have shown promise as superior alternatives to previously developed SNSPDs in which NbN films serve as the superconducting materials. SNSPDs have potential utility in optical communications and quantum cryptography.

Posted in: Photonics, Briefs, ptb catchall, Tech Briefs, Photonics

Read More >>

Miniature Incandescent Lamps as Fiber-Optic Light Sources

These lamps can be used without coupling optics. John H. Glenn Research Center, Cleveland, Ohio Miniature incandescent lamps of a special type have been invented to satisfy a need for compact, rapid-response, rugged, broadband, power-efficient, fiber-optic-coupled light sources for diverse purposes that could include calibrating spectrometers, interrogating optical sensors, spot illumination, and spot heating. A lamp of this type (see figure) includes a re-entrant planar spiral filament mounted within a ceramic package heretofore normally used to house an integrated-circuit chip. The package is closed with a window heretofore normally used in ultraviolet illumination to erase volatile electronic memories. The size and shape of the filament and the proximity of the filament to the window are such that light emitted by the filament can be coupled efficiently to an optical fiber without intervening optics.

Posted in: Photonics, Briefs, ptb catchall, Tech Briefs, Photonics

Read More >>