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News articles about "Wavelength"

Hollow optical fibers for UV light

If you want to send light on a trip through optical fibres with as little loss as possible you should opt for infrared light as is the case for example in the telecommunication networks worldwide ... - Read More

Chemical sensor on a chip created to test chemical composition of liquids

Using miniaturized laser technology a tiny sensor has been built at the Vienna University of Technology which can test the chemical composition of liquids They are invisible but perfectly suited for analyzing liquids and gases ... - Read More

Vanishing da Vinci: Nondestructive way to determine state of degradation of ancient works of art

One of Leonardo da Vinci's masterpieces drawn in red chalk on paper during the early 1500s and widely believed to be a self portrait is in extremely poor condition Centuries of exposure to humid storage ... - Read More

NASA-funded rocket to study birthplace of stars

Update May 27 2014 NASA successfully launched the Colorado High resolution Echelle Stellar Spectrograph or CHESS payload aboard a Black Brant IX suborbital sounding rocket at 3 35 a m EDT on May 24 2014 ... - Read More

Hybrid energy transfer system mimics process responsible for photosynthesis

Scientists from the University of Southampton in collaboration with the Universities of Sheffield and Crete have developed a new hybrid energy transfer system which mimics the processes responsible for photosynthesis From photosynthesis to respiration the ... - Read More

Advanced light: Sending entangled beams through fast-light materials

Michael Lewis's bestselling book Flash Boys describes how some brokers engaging in high frequency trading exploit fast telecommunications to gain fraction of a second advantage in the buying and selling of stocks But you don't ... - Read More

Tricking the uncertainty principle: New measurement technique goes beyond the limits imposed by quantum physics

Caltech researchers have found a way to make measurements that go beyond the limits imposed by quantum physics Today we are capable of measuring the position of an object with unprecedented accuracy but quantum physics ... - Read More

Cameras and displays: Organic photodiodes for sensor applications

Powerful inexpensive and even flexible when they need to be organic photodiodes are a promising alternative to silicon based photodetectors They are used to improve light sensitivity in cameras and to check displays for homogeneous ... - Read More

Nanoscope to probe chemistry on the molecular scale

For years scientists have had an itch they couldn't scratch Even with the best microscopes and spectrometers it's been difficult to study and identify molecules at the so called mesoscale a region of matter that ... - Read More

New technology using fluorescent proteins tracks cancer cells circulating in blood

After cancer spreads finding and destroying malignant cells that circulate in the body is usually critical to patient survival Now researchers reporting in the Cell Press journal Chemistry & amp Biology have developed a new ... - Read More

High-efficiency water treatment using light using a novel UV-light system

Many harmful substances in waste water stubbornly resist being broken down by biological waste water treatment plants Fraunhofer researchers have developed a photochemical reaction system in which water can be reliably treated at high flow ... - Read More

Terahertz imaging on the cheap: Fewer sensors required for high-resolution imaging systems

Terahertz imaging which is already familiar from airport security checkpoints has a number of other promising applications from explosives detection to collision avoidance in cars Like sonar or radar terahertz imaging produces an image by ... - Read More

Genetic approach helps design broadband metamaterial

A specially formed material that can provide custom broadband absorption in the infrared can be identified and manufactured using genetic algorithms according to Penn State engineers who say these metamaterials can shield objects from view ... - Read More

Probing dopant distribution: Opening the door to better doping of semiconductor nanocrystals

The icing on the cake for semiconductor nanocrystals that provide a non damped optoelectronic effect may exist as a layer of tin that segregates near the surface One method of altering the electrical properties of ... - Read More

New record operation temperature for quantum-cascade lasers

For the observation of cold matter in the interstellar medium astronomers need instruments for the detection of terahertz radiation Specific high resolution instruments are based on terahertz quantum cascade lasers but operate only at cryogenic ... - Read More

Surface modification of titanium dioxide for photocatalytic degradation of hazardous pollutants under ordinary visible light

UiTM researchers have developed a modified photocatalyst which is economical and effective at transforming organic pollutants into harmless end products Photocatalytic degradation is one of the highly effective applications in transforming organic pollutants to harmless ... - Read More

A modern twist on Young's slits

A landmark experiment on wave interference from the early 1800s is revisited using gold nanoparticles In the eighteenth century scientists faced a conundrum is light a wave or a particle One of strongest pieces of ... - Read More

Switching an antibiotic on and off with light

Scientists of the KIT and the University of Kiev have produced an antibiotic whose biological activity can be controlled with light Thanks to the robust diarylethene photoswitch the antimicrobial effect of the peptide mimetic can ... - Read More

Thermal conductance can be controlled like waves using nanostructures

Thermal conduction is a familiar everyday phenomenon In a hot sauna for instance you can sit comfortably on a wooden bench that has a temperature of 100C 212F but if you touch a metallic nail ... - Read More

DNA can be damaged by very low-energy radiation

Damage to DNA by high energy radiation constitutes the most lethal damage occurring at the cellular level Surprisingly very low energy interactions with OH radicals for instance can also induce DNA damage including double strand ... - Read More
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