Thin films of crystalline materials called perovskites provide a promising new way of making inexpensive and efficient solar cells.
Researchers at the Energy Department's National Renewable Energy Laboratory (NREL) discovered single-walled carbon nanotube semiconductors could be favorable for photovoltaic systems because they can potentially convert sunlight to electricity or fuels without losing much energy.
Researchers at Ben-Gurion University of the Negev (BGU) have developed an innovative anti-biofilm coating, which has significant anti-adhesive potential for a variety of medical and industrial applications.
In the microscopic world, as long as there are only two particles, things are relatively simple. When other particles are introduced, however, the situation soon becomes more complicated. Imagine there are two people pushing a broken-down car: The total force is the sum of their forces.
Eric Craven with Ophir Photonics provided us with a tutorial at DCS 2016 on how to co-align visible, near-infrared, and infrared laser beams through the use of a pyroelectric camera array coupled with beam profiling software.
On the last day of SPIE’s 2016 DCS exhibition in Baltimore, Kevin Fogarty with Canon showed us a 19 micron pixel pitch sensor that can achieve a full color and high definition image in extremely low light environments.
Jason Palidwar with Iridian Spectral Technologies spent some time with us on the last day of SPIE’s 2016 DCS exhibition to talk about the challenges encountered in the mid-wave spectrum and how his company has worked around them.
Hyperspectral imaging technology has advanced significantly in the last 50 years, and Greg Staples with Bayspec talked with us for a few minutes at the 2016 SPIE DCS exhibition about how it has changed.
Telops has responded to the request of their customers for a smaller version of their Hyper-Cam hyperspectral camera and has miniaturized it enough so that it can be integrated into smaller systems and packages.
Opto Diode presents the new series of near-infrared (NIR) detectors that are designed specifically for back-facet laser monitoring applications that require improved performance in the near-infrared (NIR) spectrum from 700 nm to 1100 nm. These new NXIR photodiodes maximize measurement repeatability, are highly reliable, and offer a low cost solution for NIR wavebands. The NXIR-RF36 and NXIR-RF74 are ideal for integration with semiconductor lasers such as the Fabry-Perot (FP), distributed feedback (DFB) lasers, and vertical-cavity surface-emitting lasers (VCSELs). The NXIR-5W can be used in biological, dental, and medical equipment, as well as in fluid dynamics, manufacturing, and military applications.
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LED light sources are constantly replacing incandescent lighting in general lighting applications due to their longer lifespan, high luminosity, and "green" characteristics. One of the drawbacks of LEDs is that their temperature must be carefully regulated. Heat removal is critical in LEDs because, unlike conventional light sources, LEDs need to operate at the lowest possible temperature. This article introduces a study that sets out to design to most efficient heat sink for an LED lighting device through the use of simulation.
Lasers for mid-infrared (IR) applications have gone through rapid development with many competing technologies and techniques. One technique is to use traditional gas lasers with standard gain fibers. This method, however, is limited in its interaction length, and the system is bulky and inflexible as a whole. This application note demonstrates another technique that uses a mid-IR fiber gas laser utilizing feedback in an optical cavity. The laser method works through the use of acetylene gas in a high-performance silica hollow-core fiber. It is able to lase in either continuous wave or synchronously pumped when pumped by telecom-wavelength diode lasers.
Zygo’s QPSI technology eliminates the problem of environment vibrations with measurements that require no special setup or calibration. A Zygo interferometer utilizing QPSI technology is capable of producing reliable high-precision measurements in the presence of environmental vibration from common sources such as motors, pumps, blowers, and personnel.
Understanding performance specifications is the first step in the process of selecting an instrument or technology for areal surface topography measurements. One of the more frequently cited parameters is known as “vertical resolution,” which is defined as the smallest surface height variation that can be detected. As a result of a review of instrument brochures, technical articles, and international standards, it was found that there is not a consensus regarding the meaning of "vertical resolution" and its numerical specification, which leads to a lot of confusion in the industry. It is important to re-evaluate the use of the term “vertical resolution” and identify a better way to characterize other instrument performance specifications.
PI offers a new L-406 compact linear stage delivers performance and reliability at minimized cost. It has applications in research and industrial applications, including bio-nanotechnology, microscopy, micromanipulation, inspection and metrology, beamline systems, and photonics instrumentation.
IXYS Corporation, a leader in power semiconductors, mixed-signal and digital ICs for power conversion and motion control applications, announced recently the introduction of the PCX-7500-LIV and PCX-7500-LIV-EX high-power laser diode driver/current sources by its IXYS Colorado division.
In just one hour, the Earth receives more than enough energy from the sun to meet the world population’s electricity needs in an entire year. Tapping that vast power output efficiently and at low cost remains a challenge, but new technologies could change that.
Scientists from Moscow Institute of Physics and Technology (MIPT), ITMO University (St Petersburg), and their colleagues from the Australian National University have experimentally demonstrated that silicon nanoparticles are able to significantly increase the intensity of what is known as the Raman effect.
The advance, described in a Nature paper published online May 4, was made possible by a cooling method developed by Harvard University ers, who co-authored the study.
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