Sentences with phrase «emitting light when»

This combined nitrogen - vacancy center acts as the actual sensor, emitting light when it is exposed to a laser and microwaves.

However, it remains unclear which compounds in the shell matrix are emitting light when exposed to UV rays.

OLED screens use organic molecules that emit light when an electric current is applied.

For example, it was predicted to absorb light in the near - UV and blue region and have high photoluminescence, which is the material's ability to emit light when excited by a higher energy light source.

Next, the researchers shined a laser on the crystals to measure a property called photoluminescence — the material's ability to emit light when excited by a laser — in different areas of the crystals.

Unlike weapons such as Boeing's huge Airborne Laser, which burns chemical fuel, the solid - state laser consists of semiconductors that emit light when a voltage is applied.

Silk continued to adapt the microscope so that it could, like high - end fluorescent microscopes, detect materials such as chlorophyll or fluorescent dyes, which emit light when irradiated with specific light wavelengths.

In fluorescence microscopy, certain specimens, such as TB bacteria, can be dyed so that they emit light when exposed to ultraviolet radiation.

The organic compounds in an OLED system emit light when an electric current is passed through them, and they need no backlight, making them thinner than traditional displays.

At the core of an OLED is an organic molecule that emits light when a negatively charged electron and a positively charged hole, which can be thought of as a missing electron, meet on the molecule.

ALMA focuses on the region of the spectrum between radio waves and infrared light, the range of frequencies at which complex molecules emit light when they undergo various transitions.

Semiconductors emit light when bound pairs of electrons and holes, known as excitons, recombine in a process called radiative decay.

That protein emits light when the fish's heartbeat begins faltering.

It was used to identify materials that emit light when heated.

OLED displays use organic materials that emit light when electricity is applied.

The leaves were also meant to simulate Puerto Rico's bioluminescent bays, a natural phenomenon caused by dinoflagellates, photosynthetic underwater organisms that emit light when agitated.

While LCDs are made of liquid crystals which get illuminated by a fluorescent light, OLED is an organic material, which emits light when current is passed through it.

Nano Cell film, which works similar to quantum dot sheets found in Samsung's QLED HDTVs, is made up of tiny particles that emit light when they receive an electric current.

Not exact matches

Blue light emitted by your iOS, Android or Windows 10 device can trick your brain into thinking it's daytime even when it's not.

Because our smartphone and computer screens emit blue light, when we stare at them before bed we are resetting our body's internal clock, making it more difficult to fall asleep.

While not quite as efficient as HID lights, these fluorescents have better color rendering properties (more of the light emitted is used by the plant) and produce much less heat when compared to HID lights.

When ATP comes into contact with the liquid - stable luciferase / luciferin reagent in the SystemSure's testing swap, light is emitted in direct proportion to the amount of ATP present.

Light emitting diodes light up when electricity flows through them (like light buLight emitting diodes light up when electricity flows through them (like light bulight up when electricity flows through them (like light bulight bulbs).

The Cuddle Cub emits a heartbeat sound and a very light, gentle vibration when hugged, so it reminds the little one of mommy.

When you've taken a proper temperature, it lights up and emits a soft beep.

Battery operated toys, lights that flash, sounds that are emitted when buttons are pressed, real engine noises - you name it - have all been created and sold in a bid to make little ones happy.

When the atom drops from the higher to the lower energy state, it emits a photon, or light particle, in the form of a radio wave 21 centimeters long.

These bioluminescent dinoflagellates emit beautiful blue light at night when swirled in the dark.

When driven with electrical current, electrons and positively charged holes become confined in the dots and recombine to emit light — a property that can be exploited to make lasers.

We know it's there because its black hole emits non-visible light of various wavelengths when surrounding gas falls in.

Porcar's team engineered gene switches in Escherichia coli to produce proteins that emit different coloured fluorescent light when factors such as heat, acidity and oxygen levels change.

Aequorin gives out blue light when it binds with calcium in seawater; this light is absorbed by GFP, which then emits an intense green glow.

Combining living tissues and technology, Jiawei Shao et al. created custom cells that produced insulin when illuminated by far - red light (the same wavelengths emitted by therapy bulbs and infrared saunas).

When struck by a particle of light, the detectors emit a single electron.

Mentuch analysed 88 remote galaxies whose light was emitted when the universe was between a quarter and half its current age — making them far too remote for their stars to be seen individually.

They exploit the fact that an atom of caesium, or some other element, emits visible light or microwaves when one of its electrons drops from a high energy state to a lower one.

Instead of relying on light waves emitted by electrons, it would use radiation emitted when the nucleus is excited to a high energy state, and then drops into a lower energy state.

This will require painstakingly firing lasers of different frequencies at the trapped ions, watching for when they emit light.

Normally the probe remains colourless, but when cleaved, it releases a green fluorescent product that can be detected using a homemade box containing a light - emitting diode and a couple of filters.

To turn this set - up into a nuclear clock, the team now needs to hit upon the precise frequency of light needed to excite the thorium - 229 nuclei — and observe the light emitted when it drops back in energy.

When a neuron grows a new connection, it would stretch the quantum dot particle, causing it to emit light.

The size of the acoustic scale at 13.7996 billion years ago has been exquisitely determined from observations of the cosmic microwave background from the light emitted when the pressure waves became frozen.

«When these polymers come to be used in organic light - emitting diodes, their various spatial structures can be utilized to precisely control the colour of the light emit from the OLEDs,» explained physicist Dominic Raithel (M.Sc.)

Emitted in a distant galaxy when multicellular life was just beginning to populate Earth, the waves traveled at the speed of light for more than a billion years to at last wash over our planet last September, taking just seven milliseconds to traverse the distance between LIGO's twin listening stations in Louisiana and Washington State.

This quasar is only slightly smaller than the previous distance record - holder, which weighs as much as 2 billion suns and whose light is 12.9 billion years old, emitted when the universe was just 770 million years old (SN: 7/30/11, p. 12).

Its 5160 digital optical modules, strung like pearls through the ice, look for light emitted when neutrinos strike.

Exo - zodiacal dust has been warmed to room temperature by its host star, so it glows when viewed in infrared wavelengths — that is, in infrared light, emitted by heated objects.

IBM developed a technique for making carbon nanotubes emit light, paving the way for new fiber optics; Harvard scientists figured out how to deposit tiny wires on glass or plastic, opening the door for the development of supercheap computers; and at the University of Central Florida, neuroscientist Beverly Rzigalinski discovered a nanomolecular fountain of youth effect: When Rzigalinski applied cerium oxide nanoparticles to rat neurons in a petri dish, the particles seemed to strip out the free radicals that make tissues age and kept the neurons alive and functioning up to six times their normal life span.

A pulse of visible light just 380 attoseconds long served as a flashbulb to probe how electrons emit photons when struck with light

If a neutron star is left, it may have a very strong magnetic field and rotate extremely quickly, emitting a beam of light that can be observed when the beam points towards Earth, in much the same way as a lighthouse beam sweeping past an observer.