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chemicals News
Lens-Free Microscopes Offer Real-Time Bio Imaging
Sep 5, 2014 — A totally different type of microscope will be much smaller and less complex than traditional microscopes, but more powerful. Two years ago, a customer handed Richard Stahl and the imec team a challenge: one year to develop a microscope that could help monitor the growth of stem-cell cultures. The customer was already building a prototype using a phase-contrast microscope, but Stahl decided to try lens-free microscopy instead. “A lens-free replacement would lower the cost and
SWIR Applications and Challenges: A Primer
Sep 5, 2014 — Infrared imaging opens endless possibilities for industrial, scientific and security image-processing applications. But short-wave infrared cameras must overcome the limitations of InGaAs sensor technology to provide high-quality images....
Polymers Bring Future Solar Cells
LEIOA, Spain, Sept. 4, 2014 — A polymer-based technique could lead to production of highly efficient solar cells.
Understanding Actively Q-Switched Solid-State Lasers
Sep 4, 2014 — With an increased quantitative understanding of the operation of Q-switched lasers come huge benefits for laser design. This first article in a two-part series focuses on actively Q-switched lasers; the second part, in a later issue, will cover...
Nanosensor Enhances Bomb Detection
BERKELEY, Calif., July 21, 2014 — A new sensor could potentially detect explosives that traditional recognition devices cannot. The new light-based plasmon laser sensor, developed by a team from the University of California, Berkeley, can identify extremely minute concentrations of...
‘Metamirror’ Doubles Incident Light Frequency
AUSTIN, Texas, July 8, 2014 — A nanostructure produces nonlinear effects a million times greater than traditional, macro-scale nonlinear crystals, according to a team of researchers from Texas and Germany. This “metamirror” could enable miniaturized laser systems and...
Yokogawa to Distribute GasSecure IR Detectors
OSLO, Norway, July 3, 2014 — GasSecure AS has chosen Yokogawa Electric Corp. of Tokyo to distribute its wireless industrial IR gas detectors. GasSecure’s detectors perform IR measurements of explosive hydrocarbon gas concentrations and transmits them wirelessly to a host...
Harsh Environments No Match for New Fiber Sensor
PITTSBURGH, June 27, 2014 — A team from the University of Pittsburgh has developed an optical high-temperature sensor for gas flow measurements. The researchers said they were able to operate the sensors at up to 850 °C, about 200 °C hotter than has been achieved in...
Tofu Chemical Could Prompt New Wave of Solar Cells
LIVERPOOL, England, June 27, 2014 — Solar cells could learn a thing or two from tofu and bath salts. Researchers from the Stephenson Institute for Renewable Energy at the University of Liverpool have found that magnesium chloride (MgCl2) — found in tofu, bath salts and de-icing...
Femtosecond Lasers Used to Administer Drugs
OKINAWA, Japan, and DUNEDIN, New Zealand, June 26, 2014 — A system using femtosecond lasers in conjunction with nanotechnology enables targeted and controlled drug distribution, presenting treatment possibilities for Parkinson’s disease and other ailments. Existing drug delivery procedures cannot...
Nano-engineered Quantum Dots Push Solar Cell Efficiency
LOS ALAMOS, N.M., June 26, 2014 — A new approach to building quantum dots has shown considerable gains in generating photocurrent. This could potentially create a new generation of solar cells. In a new study, a team from the Center for Advanced Solar Photophysics (CASP) at Los...
Photocatalytic Approach Produces New Drug Candidates
PRINCETON, N.J., June 25, 2014 — Light and nickel share a unique bond as chemical catalysts for potential new drugs. Princeton University chemists studying photoredox catalysis and nickel catalysis have discovered that bringing the two processes together enables reactions that...
More Efficient Solar Cells with a One-Step Process
HOUSTON, June 20, 2014 — A new one-step process for producing efficient materials could mean big things for solar cells. Developed by a team at Rice University, the new process produces black silicon. This material reflects almost no light. Its textured surface of nanoscale...
Swelling Sensor Detects Toxic Gas
CAMBRIDGE, Mass., June 17, 2014 — Those who work with hazardous substances could find an extra measure of protection in an optical sensor that puffs up in the presence of even trace amounts of toxic gases. Made from a 400-nm-thick film of polymethyl methacrylate (PMMA), the sensors...
Sensor Studies Chemicals with Single Chip
VIENNA, June 12, 2014 — Imagine being able to identify and study chemicals through a combined system of laser light and detectors. A tiny sensor, developed by researchers at the Vienna University of Technology, can do just that. Using miniaturized infrared laser...
Invest in Photonics to return in October
Jun 9, 2014 — Invest in Photonics, a two-day international business convention focused exclusively on photonics-related venture capital investment, is set to return to Bordeaux, France, on Oct. 9 and 10. The fourth biennial convention brings together industry...
Moving Raman Spectroscopy into the Clinic
Jun 9, 2014 — Raman spectroscopy’s molecular sensitivity makes it promising for clinical applications: It can identify pathogens much faster than current methods, investigate circulating tumor cells, help surgeons distinguish tumors from healthy tissue and...
Next-Gen LED Lamps Bring Costs Down
Jun 9, 2014 — LEDs top almost every other illuminant in lifetime and performance, but – unfortunately – also in production costs. This is where molded interconnect devices come in, offering considerable freedom for the arrangement of LEDs and much...
Optodigital Microscopy Enhances Efficiency of Material Testing
Jun 9, 2014 — Automated microscopes can help speed up the industrial quality-control process, saving time and money. Time is money when it comes to industrial work flows, and efficiency is a key priority. This is especially true with regard to one of the SGS...
Uncovering a 50-million-year-old mystery
Jun 9, 2014 — When prehistoric organisms conspire with time and sediment to preserve a piece of nature’s skeleton, it’s something to gawk at: Fossils are lifted from their thousand-, million- or even billion-year respites to meet the public’s...
Mid-IR Semiconductor Lasers Enable Sensors for Trace-Gas-Sensing Applications
Jun 5, 2014 — Commercial and research QCL sources can target strong fundamental rotational-vibrational gas absorption lines in the mid-IR spectral range and pure rotational lines in the terahertz range that are one to two orders of magnitude stronger than...
Scanning Vision Continues to Improve Manufacturing Standards
Jun 5, 2014 — The future of scanning vision systems is to make the underlying technology more accessible, robust and foolproof. From semiconductor manufacturing to the display industry, scanning vision technology is widely found along production lines. In fact,...
Semitransparent PV cells go designer
Jun 5, 2014 — Solar panels are hard to miss. Whether you see a dozen perched on the roof of a house or a few thousand laid down in rows on a solar farm, their dark metallic hues and large presence are eye-catching. For the majority of their existence, solar...
The Incremental Quest for Quantum Computing
Jun 5, 2014 — Researchers are on the threshold of building feasible quantum computers, with a few architectures inching ahead. Will we soon see a quantum leap in their progress? For more than two decades, one of the holy grails of physics has been to build a...
Thermal Imaging for Consumers and More
Jun 5, 2014 — SPIE held its annual Defense, Security and Sensing (DSS) event May 5-9 in Baltimore, with a new emphasis on sensing that the organization said was well received. Highlights of the 2180 technical presentations include: • Dr. Jeongsik Shin of the...
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