Sentences with phrase «photon emitted»

The infrared photons emitted by the surface are mostly absorbed in the atmosphere by greenhouse gases and clouds and do not escape directly to space.

One way to measure how an object's brightness changes is to count the number of photons it emits over time.

The infrared photons emitted by the surface are mostly absorbed in the atmosphere by greenhouse gases and clouds and do not escape directly to space.

That back radiation is photons emitted toward the nadir hemisphere since the remittance direction is randomized.

In the same way large antennas on rooftops direct emission of classical radio waves for cellular and satellite transmissions, the nano - antenna efficiently directed the single photons emitted from the nanocrystals into a well - defined direction in space.

No target class reveals compelling evidence for photon emitting sources in the EeV energy regime.

«Despite the early days in the raw materials manufacture, the quantum efficiency (photons emitted per electron injected) is already comparable to organic LEDs.»

But in the 1980s, Alain Aspect and his colleagues in France performed the EPR experiment using entangled photons emitted from calcium atoms and two detectors placed 13 meters (40 feet) apart.

«We've proved that generating entanglement between photons emitted from an LED can be achieved by adding another peculiar physical effect of superconductivity — a resistance - free electrical current in certain materials at low temperatures.»

Progress around the game board is hindered when your game piece (outgoing photon) lands on a slide (greenhouse gas molecule) that sends you backwards (photon emitted back downward), but eventually your game piece will make it to the finish line (space), it'll just take longer.

One thing they don't mention — I understand the wavelength of the infrared photons emitted varies with the temperature of the CO2 molecules — CO2 radiating infrared from a higher colder altitude is radiating slightly lower - energy longer - wavelength photons, right?

In the past, researchers have focused on maximizing the electrical current flowing inside of the solar cell, rather than maximizing the number of photons emitted when light hits the surface of the cell.

«What makes tungsten diselenide extremely versatile is that the color of the single photons emitted by the quantum dots is correlated with the quantum dot spin,» said first author Chitraleema Chakraborty.

«The gas which forms the major part of the insterstellar medium,» explains Jorge García Rojas, a researcher at the IAC who is the first author on the paper «can be observed because its atoms are ionized by the photons emitted by the hot stars embedded inside it (which can either very massive stars, or white dwarfs, which are also very hot).

In the 1970s Hawking introduced the concept of Hawking radiation — photons emitted by black holes due to quantum fluctuations.

The instruments that search for these products of dark matter annihilation were conceived as telescopes or detectors to look at particles and photons emitted by galaxies and the exotic objects that lie within them.

The first tool detects burned earth by gauging fluctuations in its magnetic field; the second determines how long ago an object was heated by measuring the photons it emits when baked in a lab.

They also capitalized on another aspect of light: The exact number of photons emitted by a source at any instant is fundamentally unpredictable.

Leik Myrabo at Rensselaer Polytechnic Institute turned science fiction into reality by demonstrating that a light sail could be propelled by photons emitted by a laser in a vacuum, which may lead to rapid interstellar travel.

Furthermore, the group obtained nearly identical emission spectra, with an spectral overlap of 91 %, between two photons emitted from two single - photon sources that were fabricated at different locations in a crystal.

Unlike regular sunlight, however, most of the photons emitted by the crystal have enough energy to excite the electrons and generate a current.

They wrote some code to change the number and wavelength of the photons emitted by their computer screens as a day progressed.

Traits that could be used as qubits include the different spins of electrons, the magnetic orientation of ions, or the photons emitted by ions.

An amplifier for such a light would increase the brightness by increasing the number of photons emitted.

Because it does so efficiently, using low intensity light and gleaning information from every photon emitted from a sample's fluorescent labels, labels are preserved so that the microscope can image longer, letting scientists watch more action unfold.

The photons emitted by such explosions, traveling at the speed of light, or about 300,000 kilometers per second, can still take billions of years to reach Earth, covering distances so vast it exceeds human comprehension.

This expansion is consistent with the observation that the light from distant galaxies has been redshifted; the photons emitted have been stretched to longer wavelengths and lower frequency during their journey.

The photons emitted in the light beam penetrate the skin, working on the tissue to stimulate nerve endings, cell growth, and blood flow.

Transitions between these levels is governed by quantum numbers and are allowed or forbidden by selection rules, so the energy of photons emitted or absorbed is subject to these rules.

The signals are sampled in time (i.e., distance) and after various corrections are proportional to the product of the number of photons emitted by the number of backscattering molecules.

If a cold greenhouse gas absorbs a photon emitted from the ground, and emits at a lower intensity, where does the rest of the energy go?