Sentences with phrase «photons within»

I say very little and not just because that span of frequencies radiance is a small portion of the BB radiation from the ground at 288K, but instead that those photons within that range would not go but a few centimeters (swag) before being absorbed.
2) I second what wayne said about the energy for the 7 um photons coming from the MB distribution of molecules in the atmosphere, not from some sort of 2 photon interaction of 15 um photons within a single CO2 molecule.
The secondary photons will be «processed» within the atmospheric cascade and be slowly removed, again however the previously made calculations indicate a 12 month average life for Photons within this cascade effect.
Infact the Energy of the Photons within the Cascade is that Energy NOT involved in any induction of KE, yet it is THIS energy that «greenhouse science» attempts to cite as «temperature» when using CO2 as a temperature proxy, and this methodology invalidates ALL other supposed «greenhouse proxies» also.
There is little remittance of Energy form Water Molecules as secondary Photons within the situation the Atmosphere presents them.
It is seen that ONLY Photons within the Visible AND the Lower UV Spectrum are (and can be) surface incident on a persistent basis with sufficient Energy to effect the warming that is noticed.
Note that I0 * exp -LRB-- τ) does not include contributions from emission of photons within the path or scattering of photons into the path from other directions.
That is because they can use only photons within a certain range of wavelengths to excite electrons.
A bigger optical circuit would be more susceptible to effects such as the absorption of photons within the circuit and optical noise that could distort the results, Preskill notes.
The key phrase is «seems», as in the ability for the quantum components of the system to measure a photon within the sphere can drop to zero.
The catch here is that the dye has emitted a light photon within the window itself.

Not exact matches

We think of «eyesight» as this magical thing because it's pretty magical, yet all it is is the result of photons striking chemicals that are in physical structures within the retina and cause a nerve impulse.
Deep within their sensors and electronic circuits, electrons and photons dance to the tune of our most fundamental theory of nature's workings: quantum theory.
Then he wants to demonstrate intercontinental quantum key distribution between stations in China and Austria, which will require holding one half of an entangled photon pair on board until the Austrian ground station appears within view of the satellite.
These results indicate that the polymers studied have large cross sections for stimulated emission, that population inversion can be achieved at low pump energies, and that the emitted photons travel distances greater than the gain length within the gain medium.
«At the very microscopic level,» he says, «we have developed techniques like two - photon microscopy, which allows extremely detailed examinations of structures and processes within cells.»
According to quantum mechanics, an atom can only absorb a photon of particular energies and colors as the electron within the atom hops from a lower energy state to a higher energy state.
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 CMB is a literal firewall on efforts to peer further back in time using light — nearly all information about earlier events carried by photons was erased as they bounced aimlessly within the hot, dense plasma that suffused the infant universe.
But if they are within 100,000 times or so the mass of normal neutrinos — or a few thousand electron volts — most should still exist, with some occasionally decaying into lighter neutrinos and X-ray photons.
The 511 keV photons are only emitted by the spin - 0 states of Ps, and this takes place within about 0.1 nanosecond after a spin - 0 state is formed.
Whereas a normal laser traps light with mirrors that reflect the beam, a fine powder can trap light within its dancing particles, which then scatter the photons.
You'd spend several years and several billion dollars, so that every last photon was within your reach.
Now these fundamental matter particles interact by means of forces and within quantum mechanics we believe that these forces are mediated by quantum, by particles, and so we have the electromagnetic force mediated by photons which are massless; we have the weak nuclei force mediated by massive particles which are called W and Z and we have the strong nuclear force mediated by massless gluons.
Part of the difficulty is a process called photoionization, in which the high - energy photons conveying the x-rays strip away electrons from atoms within the accretion disk.
In the latest study, Feng's group found that not only does photon - assisted tunneling occur in the transistor laser, but that it in turn stimulates the photon absorption process within the laser cavity, making the optical switching in the device even faster and allowing for ultra-high-speed signal modulation.
In fact, the energy emitted in the form of neutrinos within a few seconds is a few hundred times what the sun emits in the form of photons over its entire lifetime of nearly ten billion years.
In a medium such as fog or milk, however, photons ping randomly off myriad objects within the medium — water droplets in fog, milk solids in milk.
Electrons within a target atom are first excited by a photon contained within the pump pulse, which is then followed after a short delay by a second photon in a probe pulse.
In order to implement this procedure, the photons must be so tightly packed that a single atom within the target can be hit by two photons in succession.
The source now unveiled by the University of Warsaw physicists represents the first implementation of this concept, and one that's much more integrated: here, all the photons are created immediately within the quantum memory as a result of the laser pulse, which lasts only microseconds.
One of the issues impeding its immediate application is the fact that many photon entanglement platforms do not operate within the range used by most forms of telecommunication.
The wavelengths (or color) of the photons produced in most other approaches had been too short for telecommunications applications, where photons need to be efficiently manipulated and transported within optical circuits.
Another Kavli researcher, Steven Siegelbaum, uses a technology called two - photon microscopy to image pre-synaptic terminals (the nerve cell tips that send charges from one cell to another) within slices of living brain tissue.
Within that plane, photons are so concentrated that they interact with the dye in pairs, each of which has enough energy to light up the dye molecules.
We also work closely with colleagues within the department and university and have built photon counting, laser induced fluorescence systems for capillary electrophoresis with Professor Steiner, DNA Electrophoresis imaging systems with Professor Mendis, graphene functionalization and Chromone Laser Dye Synthesis with Professor Li.
The idea for this experiment was born within LLNL's NIF & Photon Science Directorate, where Kraus was stationed as a University of California - Berkeley postdoc.
Within about an hour of the optical counterpart discovery, infrared photons were detected by the Gemini South telescope, also in Chile.
As commercial technology development leader, he fosters the growth of commercial opportunities within the Advanced Photon Technologies (APT) Program, and as senior scientist he engages in the evaluation and development of technologies toward future advanced photon sources and their applicaPhoton Technologies (APT) Program, and as senior scientist he engages in the evaluation and development of technologies toward future advanced photon sources and their applicaphoton sources and their applications.
And yet another completely different example, and this has been a very exciting program that's so futuristic... we've been working with defence to develop optical fibres that you can embed within an aeroplane and essentially what you do is you send photons along the fibres inside the aircraft and they report back on whether the aircraft is rusting.
Connecting a diode to an electrical current excites the electrons within the diode, making them release photons, which we see as light.
Within the last 24 hours, Motorola Mobility have quietly amended the Android update master list for all devices to exclude three major Android devices from long - promised Ice Cream Sandwich updates, chief among them two former flagships in the Motorola Atrix carried by AT&T in the US and the Motorola Photon carried by Sprint, while the Motorola Electrify was previously launched by U.S. Cellular.
These photons are absorbed within the mitochondria of the cells and induce a chemical change called «photo - bio-modulation».
The photons are absorbed by the cells, causing a chemical reaction within the cells, stimulating healing processes.
We request indie developers to display the Exit Games Photon logo prominently, in splash screen or credits, within their applications.
Peter Carson, 400 ppmv equates to about a gauntlet of nearly 2 billion CO2 molecules an IR photon must pass within a wavelength of on its way out of the atmosphere.
What is relevant is the probability that such a photon will be absorbed by (or more generally interact with) a susceptible molecule (CO2) within the given length.
PS when molecular collisions are frequent relative to photon emissions and absorptions (as is generally the case in most of the mass of the atmosphere), the radiant heat absorbed by any population of molecules is transfered to the heat of the whole population within some volume, and molecules that emit photons can then gain energy from other molecules.
But when optical thickness gets to a significant value (such that the overall spatial temperature variation occurs on a spatial scale comparable to a unit of optical thickness), each successive increment tends to have a smaller effect — when optical thickness is very large relative to the spatial scale of temperature variation, the flux at some location approaches the blackbody value for the temperature at that location, because the distances photons can travel from where they are emitted becomes so small that everything «within view» becomes nearly isothermal.
, then the interaction gets complicated, but if we stick to purely complete emission and absorption of photons, with any scattering preserving photon energy, then, if the non-photons within each local system are at LTE, then they will emit into a direction as much as they absorb from a direction of the same type of photons if their temperature is the same as the brightness temperature of the incident photons.
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